xtd::forms::track_bar Class Reference

Inheritance diagram for xtd::forms::track_bar:

Definition

Represents a standard Windows track bar.

Header

#include <xtd/forms/track_bar> 

Namespace

xtd::forms

Library

xtd.forms

Remarks

The track_bar is a scrollable control similar to the scroll_bar control. You can configure ranges through which the value of the value property of a track bar scrolls by setting the minimum property to specify the lower end of the range and the maximum property to specify the upper end of the range.

The large_change property defines the increment to add or subtract from the value property when clicks occur on either side of the scroll box. The track bar can be displayed horizontally or vertically.

You can use this control to input numeric data obtained through the value property. You can display this numeric data in a control or use it in code.

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Examples

The following code example demonstrates the use of track_bar control.

#include <xtd/forms/application>
#include <xtd/forms/form>
#include <xtd/forms/label>
#include <xtd/forms/progress_bar>
#include <xtd/forms/track_bar>
 
using namespace xtd;
using namespace xtd::forms;
 
class form1 : public form {
public:
  form1() {
    client_size({300, 300});
    text("Track bar example");
    
    progress_bar1.location({120, 50});
    progress_bar1.maximum(200);
    progress_bar1.orientation(forms::orientation::vertical);
    progress_bar1.parent(*this);
    progress_bar1.height(200);
    
    label1.location({160, 50});
    label1.parent(*this);
    
    track_bar1.location({50, 50});
    track_bar1.maximum(200);
    track_bar1.auto_size(false);
    track_bar1.orientation(forms::orientation::vertical);
    track_bar1.parent(*this);
    track_bar1.value_changed += [&] {
      progress_bar1.value(track_bar1.value());
      label1.text(ustring::format("{}", track_bar1.value()));
    };
    track_bar1.value(100);
    track_bar1.tick_style(forms::tick_style::none);
    track_bar1.height(200);
  }
  
private:
  track_bar track_bar1;
  progress_bar progress_bar1;
  label label1;
};
 
auto main()->int {
  application::run(form1 {});
}

Examples

application_enable_dark_mode.cpp, application_enable_light_mode.cpp, image_converter.cpp, painting.cpp, some_controls.cpp, some_system_controls.cpp, themes.cpp, track_bar.cpp, and track_bar2.cpp.

Public Events
event< track_bar, event_handler >	scroll
	Occurs when either a mouse or keyboard action moves the scroll box.
event< track_bar, event_handler >	value_changed
	Occurs when the value property of a track bar changes, either by movement of the scroll box or by manipulation in code.

Public Constructors
	track_bar ()
	Initializes a new instance of the track_bar class.

Public Properties
virtual int32	large_change () const noexcept
	Gets a value to be added to or subtracted from the value property when the scroll box is moved a large distance.
virtual track_bar &	large_change (int32 large_change)
	Sets a value to be added to or subtracted from the value property when the scroll box is moved a large distance.
virtual int32	maximum () const noexcept
	Gets the upper limit of the range this track_bar is working with.
virtual track_bar &	maximum (int32 maximum)
	sets the upper limit of the range this track_bar is working with.
virtual int32	minimum () const noexcept
	Gets the lower limit of the range this track_bar is working with.
virtual track_bar &	minimum (int32 minimum)
	Sets the lower limit of the range this track_bar is working with.
virtual forms::orientation	orientation () const noexcept
	Gets a value indicating the horizontal or vertical orientation of the track bar.
virtual track_bar &	orientation (forms::orientation orientation)
	Sets a value indicating the horizontal or vertical orientation of the track bar.
virtual int32	small_change () const noexcept
	Gets he value added to or subtracted from the Value property when the scroll box is moved a small distance.
virtual track_bar &	small_change (int32 small_change)
	Sets the value added to or subtracted from the Value property when the scroll box is moved a small distance.
virtual int32	tick_frequency () const noexcept
	Gets a value that specifies the delta between ticks drawn on the control.
virtual track_bar &	tick_frequency (int32 tick_frequency)
	Sets a value that specifies the delta between ticks drawn on the control.
virtual forms::tick_style	tick_style () const noexcept
	Gets a value indicating how to display the tick marks on the track bar.
virtual track_bar &	tick_style (forms::tick_style tick_style)
	Sets a value indicating how to display the tick marks on the track bar.
virtual int32	value () const noexcept
	Gets a numeric value that represents the current position of the scroll box on the track bar.
virtual track_bar &	value (int32 value)
	Sets a numeric value that represents the current position of the scroll box on the track bar.

Public Methods
void	set_range (int32 min_value, int32 max_value)
	Sets the minimum and maximum values for a xtd::forms::track_bar.
xtd::ustring	to_string () const noexcept override
	Returns a string that represents the track_bar control.

Public Static Methods
static track_bar	create ()
	A factory to create an xtd::forms::track_bar.
static track_bar	create (const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified location.
static track_bar	create (const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified location, and size.
static track_bar	create (const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified location, size, and name.
static track_bar	create (int32 value)
	A factory to create an xtd::forms::track_bar with specified value.
static track_bar	create (int32 value, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified value, and location.
static track_bar	create (int32 value, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified value, location, and size.
static track_bar	create (int32 value, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified value, location, size, and name.
static track_bar	create (int32 value, int32 maximum)
	A factory to create an xtd::forms::track_bar with specified value, and maximum.
static track_bar	create (int32 value, int32 maximum, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, and location.
static track_bar	create (int32 value, int32 maximum, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified value, maximum, location, and size.
static track_bar	create (int32 value, int32 maximum, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified value, maximum, location, size, and name.
static track_bar	create (int32 value, int32 minimum, int32 maximum)
	A factory to create an xtd::forms::track_bar with specified value, minimum, and maximum.
static track_bar	create (int32 value, int32 minimum, int32 maximum, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, and location.
static track_bar	create (int32 value, int32 minimum, int32 maximum, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, location, and size.
static track_bar	create (int32 value, int32 minimum, int32 maximum, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, location, size, and name.
static track_bar	create (const control &parent)
	A factory to create an xtd::forms::track_bar with specified parent.
static track_bar	create (const control &parent, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified parent, and location.
static track_bar	create (const control &parent, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified parent, location, and size.
static track_bar	create (const control &parent, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified parent, location, size, and name.
static track_bar	create (const control &parent, int32 value)
	A factory to create an xtd::forms::track_bar with specified parent, and value.
static track_bar	create (const control &parent, int32 value, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified parent, value, and location.
static track_bar	create (const control &parent, int32 value, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified parent, value, location, and size.
static track_bar	create (const control &parent, int32 value, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified parent, value, location, size, and name.
static track_bar	create (const control &parent, int32 value, int32 maximum)
	A factory to create an xtd::forms::track_bar with specified parent, value, and maximum.
static track_bar	create (const control &parent, int32 value, int32 maximum, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified parent, value, maximum, and location.
static track_bar	create (const control &parent, int32 value, int32 maximum, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified parent, value, maximum, location, and size.
static track_bar	create (const control &parent, int32 value, int32 maximum, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified parent, value, maximum, location, size, and name.
static track_bar	create (const control &parent, int32 value, int32 minimum, int32 maximum)
	A factory to create an xtd::forms::track_bar with specified parent, value, minimum, and maximum.
static track_bar	create (const control &parent, int32 value, int32 minimum, int32 maximum, const drawing::point &location)
	A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, and location.
static track_bar	create (const control &parent, int32 value, int32 minimum, int32 maximum, const drawing::point &location, const drawing::size &size)
	A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, location, and size.
static track_bar	create (const control &parent, int32 value, int32 minimum, int32 maximum, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, location, size, and name.

Protected Properties
forms::create_params	create_params () const noexcept override
	Gets the required creation parameters when the control handle is created.
drawing::size	default_size () const noexcept override
	Gets the default size of the control.

Protected Methods
std::unique_ptr< xtd::object >	clone () const override
	Creates a new object that is a copy of the current instance.
void	on_handle_created (const event_args &e) override
	Overrides control::on_handle_created(const event_args&)
virtual void	on_scroll (const event_args &e)
	Raises the track_bar::scroll event.
virtual void	on_value_changed (const event_args &e)
	Raises the track_bar::value_changed event.
void	set_bounds_core (int32 x, int32 y, int32 width, int32 height, bounds_specified specified) override
	Performs the work of setting the specified bounds of this control.
void	set_client_size_core (int32 width, int32 height) override
	Sets the size of the client area of the control.
void	wnd_proc (message &message) override
	Processes Windows messages.

Additional Inherited Members
Public Types inherited from xtd::forms::control
using	context_menu_ref = std::reference_wrapper< xtd::forms::context_menu >
	Represent an xtd::forms::context_menu reference.
Public Attributes inherited from xtd::forms::control
event< control, event_handler >	auto_size_changed
	Occurs when the value of the xtd::forms::control::auto_size property changes.
event< control, event_handler >	back_color_changed
	Occurs when the value of the xtd::forms::control::back_color property changes.
event< control, event_handler >	background_image_changed
	Occurs when the value of the xtd::forms::control::background_image property changes.
event< control, event_handler >	background_image_layout_changed
	Occurs when the value of the xtd::forms::control::background_image_layout property changes.
event< control, event_handler >	control_appearance_changed
	Occurs when the value of the xtd::forms::control::control_appearance property changes.
event< control, event_handler >	click
	Occurs when the xtd::forms::control is clicked.
event< control, event_handler >	client_size_changed
	Occurs when the value of the xtd::forms::control::client_size property changes.
event< control, event_handler >	cursor_changed
	Occurs when the value of the xtd::forms::control::cursor property changes.
event< control, control_event_handler >	control_added
	Occurs when a new xtd::forms::control::control is added to the xtd::forms::control::control_collection.
event< control, control_event_handler >	control_removed
	Occurs when a new xtd::forms::control:: is removed to the xtd::forms::control::control_collection.
event< control, event_handler >	dock_changed
	Occurs when the value of the xtd::forms::control::dock property changes.
event< control, event_handler >	double_click
	Occurs when the xtd::forms::control is double-clicked.
event< control, event_handler >	got_focus
	Occurs when the xtd::forms::control receives focus.
event< control, event_handler >	handle_created
	Occurs when a handle is created for the xtd::forms::control.
event< control, event_handler >	handle_destroyed
	Occurs when the control's handle is in the process of being destroyed.
event< control, event_handler >	enabled_changed
	Occurs when the value of the xtd::forms::control::enabled property changes.
event< control, event_handler >	fore_color_changed
	Occurs when the value of the xtd::forms::control::fore_color property changes.
event< control, event_handler >	font_changed
	Occurs when the value of the xtd::forms::control::font property changes.
event< control, help_event_handler >	help_requested
	Occurs when the user requests help for a xtd::forms::control.
event< control, key_event_handler >	key_down
	Occurs when a key is pressed while the xtd::forms::control has focus.
event< control, key_press_event_handler >	key_press
	Occurs when a character. space or backspace key is pressed while the xtd::forms::control has focus.
event< control, key_event_handler >	key_up
	Occurs when a key is released while the xtd::forms::control has focus.
event< control, event_handler >	layout
	Occurs when a xtd::forms::control should reposition its child controls.
event< control, event_handler >	location_changed
	Occurs when the value of the xtd::forms::control::location property changes.
event< control, event_handler >	lost_focus
	Occurs when the xtd::forms::control loses focus.
event< control, mouse_event_handler >	mouse_click
	Occurs when the xtd::forms::control is clicked by the mouse.
event< control, mouse_event_handler >	mouse_double_click
	Occurs when the xtd::forms::control is double clicked by the mouse.
event< control, mouse_event_handler >	mouse_down
	Occurs when the mouse pointer is over the xtd::forms::control and a mouse button is pressed.
event< control, event_handler >	mouse_enter
	Occurs when the mouse pointer enters the xtd::forms::control.
event< control, mouse_event_handler >	mouse_horizontal_wheel
	Occurs when the mouse horizontal wheel moves while the xtd::forms::control has focus.
event< control, event_handler >	mouse_leave
	Occurs when the mouse pointer leaves the xtd::forms::control.
event< control, mouse_event_handler >	mouse_move
	Occurs when the mouse pointer is moved over the xtd::forms::control.
event< control, mouse_event_handler >	mouse_up
	Occurs when the mouse pointer is over the xtd::forms::control and a mouse button is released.
event< control, mouse_event_handler >	mouse_wheel
	Occurs when the mouse wheel moves while the xtd::forms::control has focus.
event< control, event_handler >	move
	Occurs when the control is moved.
event< control, paint_event_handler >	paint
	Occurs when the xtd::forms::control is redrawn.
event< control, event_handler >	parent_changed
	Occurs when the value of the xtd::forms::control::parent property changes.
event< control, event_handler >	region_changed
	Occurs when the value of the xtd::forms::control::region property changes.
event< control, event_handler >	resize
	Occurs when the xtd::forms::control is resized.
event< control, event_handler >	right_to_left_changed
	Occurs when the value of the xtd::forms::control::right_to_left property changes.
event< control, event_handler >	size_changed
	Occurs when the value of the xtd::forms::control::size property changes.
event< control, event_handler >	style_sheet_changed
	Occurs when the value of the xtd::forms::control::style_sheet property changes or when xtd::application::style_sheet property changes.
event< control, event_handler >	system_colors_changed
	Occurs when the xtd::drwing::system_colors changes.
event< control, event_handler >	tab_stop_changed
	Occurs when the xtd::forms::control::tab_stop property value changes.
event< control, event_handler >	text_changed
	Occurs when the value of the xtd::forms::control::text property changes.
event< control, event_handler >	visible_changed
	Occurs when the value of the xtd::forms::control::visible property changes.
Public Member Functions inherited from xtd::forms::control
	control ()
	Initializes a new instance of the xtd::forms::control class with default settings.
	control (const xtd::ustring &text)
	Initializes a new instance of the xtd::forms::control class with specific text.
	control (const control &parent, const xtd::ustring &text)
	Initializes a new instance of the xtd::forms::control class as a child control, with specific text.
	control (const xtd::ustring &text, int32 left, int32 top, int32 width, int32 height)
	Initializes a new instance of the control class with specific text, size, and location.
	control (const control &parent, const xtd::ustring &text, int32 left, int32 top, int32 width, int32 height)
	Initializes a new instance of the xtd::forms::control class as a child control, with specific text, size, and location.
virtual anchor_styles	anchor () const noexcept
	Gets the edges of the container to which a control is bound and determines how a control is resized with its parent.
virtual control &	anchor (xtd::forms::anchor_styles anchor)
	Gets the edges of the container to which a control is bound and determines how a control is resized with its parent.
virtual drawing::point	auto_scroll_point () const noexcept
	Gets where this control is scrolled to in scroll_control_into_view(control).
virtual bool	auto_size () const noexcept
	Gets a value that indicates whether the control resizes based on its contents.
virtual control &	auto_size (bool auto_size)
	Sets a value that indicates whether the control resizes based on its contents.
virtual drawing::color	back_color () const noexcept
	Gets the background color for the control.
virtual control &	back_color (const xtd::drawing::color &color)
	Sets the background color for the control.
virtual const xtd::drawing::image &	background_image () const noexcept
	Gets the background image displayed in the control.
virtual control &	background_image (const xtd::drawing::image &background_image)
	Sets the background image displayed in the control.
virtual xtd::forms::image_layout	background_image_layout () const noexcept
	Gets the background image layout as defined in the xtd::forms::image_layout enumeration.
virtual control &	background_image_layout (xtd::forms::image_layout background_image_layout)
	Sets the background image layout as defined in the xtd::forms::image_layout enumeration.
virtual int32	bottom () const noexcept
	Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.
virtual drawing::rectangle	bounds () const noexcept
	Gets the size and location of the control including its nonclient elements, in pixels, relative to the parent control.
virtual control &	bounds (const xtd::drawing::rectangle &bounds)
	Sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control.
virtual bool	can_focus () const noexcept
	Gets a value indicating whether the control can receive focus.
virtual bool	can_select () const noexcept
	Gets a value indicating whether the control can be selected.
bool	can_raise_events () const noexcept override
	Determines if events can be raised on the control.
virtual const drawing::rectangle &	client_rectangle () const noexcept
	Gets the rectangle that represents the client area of the control.
virtual const drawing::size &	client_size () const noexcept
	Gets the height and width of the client area of the control.
virtual control &	client_size (const xtd::drawing::size &client_size)
	Sets the height and width of the client area of the control.
virtual xtd::ustring	company_name () const noexcept
	Gets the name of the company or creator of the application containing the control.
virtual std::optional< context_menu_ref >	context_menu () const noexcept
	Gets the xtd::forms::context_menu that is displayed in the control.
virtual control &	context_menu (xtd::forms::context_menu &value)
	Sets the xtd::forms::context_menu that is displayed in the control.
virtual control &	context_menu (std::nullptr_t)
	Sets the xtd::forms::context_menu that is displayed in the control.
virtual forms::control_appearance	control_appearance () const noexcept
	Gets control appearance.
virtual control &	control_appearance (xtd::forms::control_appearance value)
	Sets control appearance.
virtual control_collection &	controls () noexcept
	Gets the collection of controls contained within the control.
virtual const control_collection &	controls () const noexcept
	Gets the collection of controls contained within the control.
virtual bool	created () const noexcept
	Gets a value indicating whether the control has been created.
virtual forms::cursor	cursor () const noexcept
	Gets the cursor that is displayed when the mouse pointer is over the control.
virtual control &	cursor (const xtd::forms::cursor &cursor)
	Sets the cursor that is displayed when the mouse pointer is over the control.
virtual drawing::rectangle	display_rectangle () const noexcept
	Gets the rectangle that represents the display area of the control.
virtual dock_style	dock () const noexcept
	Gets which control borders are docked to its parent control and determines how a control is resized with its parent.
virtual control &	dock (xtd::forms::dock_style dock)
	Sets which control borders are docked to its parent control and determines how a control is resized with its parent.
virtual bool	double_buffered () const noexcept
	Gets a value indicating whether this control should redraw its surface using a secondary buffer to reduce or prevent flicker.
virtual control &	double_buffered (bool double_buffered)
	Sets a value indicating whether this control should redraw its surface using a secondary buffer to reduce or prevent flicker.
virtual bool	enabled () const noexcept
	Gets a value indicating whether the control can respond to user interaction.
virtual control &	enabled (bool enabled)
	Sets a value indicating whether the control can respond to user interaction.
virtual bool	focused () const noexcept
	Gets a value indicating whether the control has input focus.
virtual drawing::font	font () const noexcept
	Gets the font of the text displayed by the control.
virtual control &	font (const xtd::drawing::font &font)
	Sets the font of the text displayed by the control.
virtual drawing::color	fore_color () const noexcept
	Gets the foreground color of the control.
virtual control &	fore_color (const xtd::drawing::color &color)
	Sets the foreground color of the control.
intptr	handle () const override
	Gets the window handle that the control is bound to.
virtual int32	height () const noexcept
	Gets the height of the control.
virtual control &	height (int32 height)
	Sets the height of the control.
bool	invoke_required () const noexcept override
	Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.
bool	is_handle_created () const noexcept
	Gets a value indicating whether the control has a handle associated with it.
virtual int32	left () const noexcept
	Gets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.
virtual control &	left (int32 left)
	Sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.
virtual drawing::point	location () const noexcept
	Gets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container.
virtual control &	location (const xtd::drawing::point &location)
	Sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container.
virtual forms::padding	margin () const noexcept
	Gets the space between controls.
virtual control &	margin (const xtd::forms::padding &margin)
	Sets the space between controls.
virtual const drawing::size &	maximum_client_size () const noexcept
	Gets the client size that is the upper limit that xtd::forms::control::get_preferred_size can specify.
virtual control &	maximum_client_size (const xtd::drawing::size &size)
	Sets the client size that is the upper limit that xtd::forms::control::get_preferred_size can specify.
virtual const drawing::size &	maximum_size () const noexcept
	Gets the size that is the upper limit that xtd::forms::control::get_preferred_size can specify.
virtual control &	maximum_size (const xtd::drawing::size &size)
	Sets the size that is the upper limit that xtd::forms::control::get_preferred_size can specify.
virtual const drawing::size &	minimum_client_size () const noexcept
	Gets the client size that is the lower limit that xtd::forms::control::get_preferred_size can specify.
virtual control &	minimum_client_size (const xtd::drawing::size &size)
	Sets the client size that is the lower limit that xtd::forms::control::get_preferred_size can specify.
virtual const drawing::size &	minimum_size () const noexcept
	Gets the size that is the lower limit that xtd::forms::control::get_preferred_size can specify.
virtual control &	minimum_size (const xtd::drawing::size &size)
	Sets the size that is the lower limit that xtd::forms::control::get_preferred_size can specify.
intptr	native_handle () const noexcept
	Gets the native handle that the control is bound to.
virtual const xtd::ustring &	name () const noexcept
	Gets the name of the control.
virtual control &	name (const xtd::ustring &name)
	Sets the name of the control.
virtual forms::padding	padding () const noexcept
	Gets padding within the control.
virtual control &	padding (const xtd::forms::padding &padding)
	Sets padding within the control.
virtual std::optional< control_ref >	parent () const noexcept
	Gets the parent container of the control.
virtual control &	parent (const control &parent)
	Sets the parent container of the control.
virtual control &	parent (std::nullptr_t)
	Resets the parent container of the control.
virtual xtd::ustring	product_name () const noexcept
	Gets the product name of the assembly containing the control.
bool	recreating_handle () const noexcept
	Gets a value indicating whether the control is currently re-creating its handle.
virtual const xtd::drawing::region &	region () const noexcept
	Gets the window region associated with the control.
virtual control &	region (const xtd::drawing::region &value)
	Sets the window region associated with the control.
virtual int32	right () const noexcept
	Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area.
virtual xtd::forms::right_to_left	right_to_left () const noexcept
	Gets a value indicating whether control's elements are aligned to support locales using right-to-left fonts.
virtual control &	right_to_left (xtd::forms::right_to_left value)
	Sets a value indicating whether control's elements are aligned to support locales using right-to-left fonts.
virtual drawing::size	size () const noexcept
	Gets the height and width of the control.
virtual control &	size (const drawing::size &size)
	Sets the height and width of the control.
virtual style_sheets::style_sheet	style_sheet () const noexcept
	Gets the contol style sheet.
virtual control &	style_sheet (const style_sheets::style_sheet &value)
	Sets the contol style sheet.
virtual control &	style_sheet (const xtd::ustring &value)
	Sets the contol style sheet.
virtual control &	style_sheet (std::nullptr_t)
	Resets the contol style sheet.
virtual bool	tab_stop () const noexcept
	Gets a value indicating whether the user can give the focus to this control using the TAB key.
virtual control &	tab_stop (bool value)
	Sets a value indicating whether the user can give the focus to this control using the TAB key.
virtual std::any	tag () const noexcept
	Gets the object that contains data about the control.
virtual control &	tag (std::any tag)
	Sets the object that contains data about the control.
virtual const xtd::ustring &	text () const noexcept
	Gets the text associated with this control.
virtual control &	text (const xtd::ustring &text)
	Sets the text associated with this control.
intptr	toolkit_handle () const noexcept
	Gets the toolkit handle that the control is bound to.
virtual int32	top () const noexcept
	Gets the distance, in pixels, between the top edge of the control and the top edge of its container's client area.
virtual control &	top (int32 top)
	Sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area.
virtual std::optional< control_ref >	top_level_control () const noexcept
	Gets the parent control that is not parented by another Windows Forms control. Typically, this is the outermost Form that the control is contained in.
virtual bool	visible () const noexcept
	Gets a value indicating whether the control and all its child controls are displayed.
virtual control &	visible (bool visible)
	Sets a value indicating whether the control and all its child controls are displayed.
virtual int32	width () const noexcept
	Gets the width of the control.
virtual control &	width (int32 width)
	Sets the width of the control.
xtd::async_result	begin_invoke (delegate< void()> method) override
	Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on.
xtd::async_result	begin_invoke (delegate< void(std::vector< std::any >)> method, const std::vector< std::any > &args) override
	Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on.
virtual void	bring_to_front ()
	Brings the control to the front of the z-order.
int32	compare_to (const control &value) const noexcept override
void	create_control ()
	Forces the creation of the visible control, including the creation of the handle and any visible child controls.
drawing::graphics	create_graphics () const
	Creates the xtd::drawing::graphics for the control.
virtual void	destroy_control ()
	Forces the destruction of the visible control, including the destruction of the handle and any visible child controls.
std::optional< object_ref >	end_invoke (xtd::async_result async) override
	Retrieves the return value of the asynchronous operation represented by the async_result_invoke passed.
bool	equals (const control &value) const noexcept override
bool	focus ()
	Sets input focus to the control.
auto_size_mode	get_auto_size_mode () const
	Gets a value indicating how a control will behave when its auto_size property is enabled.
size_t	get_child_index (intptr child) const
	Retrieves the index of a control within the control collection.
size_t	get_child_index (intptr child, bool &throw_exception) const
	Retrieves the index of the specified child control within the control collection, and optionally raises an exception if the specified control is not within the control collection.
virtual void	hide ()
	Conceals the control from the user.
virtual void	invalidate () const
	Invalidates the entire surface of the control and causes the control to be redrawn.
virtual void	invalidate (bool invalidate_children) const
	Invalidates a specific region of the control and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.
virtual void	invalidate (const drawing::rectangle &rect) const
	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.
virtual void	invalidate (const drawing::rectangle &rect, bool invalidate_children) const
	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.
virtual void	invalidate (const drawing::region &region) const
	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.
virtual void	invalidate (const drawing::region &region, bool invalidate_children) const
	Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. Optionally, invalidates the child controls assigned to the control.
std::optional< object_ref >	invoke (delegate< void()> method) override
	Executes the specified delegate on the thread that owns the control's underlying window handle.
std::optional< object_ref >	invoke (delegate< void(std::vector< std::any >)> method, const std::vector< std::any > &args) override
	Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments.
std::optional< object_ref >	invoke (delegate< void(std::vector< std::any >)> method, std::any arg) override
	Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments.
void	perform_layout ()
	Forces the control to apply layout logic to all its child controls.
xtd::drawing::point	point_to_client (const xtd::drawing::point &p) const
	Computes the location of the specified screen point into client coordinates.
xtd::drawing::point	point_to_screen (const xtd::drawing::point &p) const
	Computes the location of the specified client point into screen coordinates.
virtual bool	pre_process_message (const xtd::forms::message &message)
	Preprocesses keyboard or input messages within the message loop before they are dispatched.
virtual void	refresh () const
	Forces the control to invalidate its client area and immediately redraw itself and any child controls.
void	resume_layout ()
	Resumes usual layout logic.
void	resume_layout (bool perform_layout)
	Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests.
intptr	send_message (intptr hwnd, int32 msg, intptr wparam, intptr lparam) const
	Send a message with specified hwnd, message, wparam and lparam.
void	set_auto_size_mode (auto_size_mode auto_size_mode)
	Sets a value indicating how a control will behave when its auto_size property is enabled.
void	set_bounds (int32 x, int32 y, int32 width, int32 height)
	Sets the bounds of the control to the specified location and size.
void	set_bounds (int32 x, int32 y, int32 width, int32 height, bounds_specified specified)
	Sets the specified bounds of the control to the specified location and size.
virtual void	show ()
	Displays the control to the user.
void	suspend_layout ()
	Temporarily suspends the layout logic for the control.
virtual void	update () const
	Causes the control to redraw the invalidated regions within its client area.
virtual xtd::async_result	begin_invoke (delegate< void()> method)=0
	Asynchronously executes the delegate on the thread that created this object.
virtual xtd::async_result	begin_invoke (delegate< void(std::vector< std::any >)> value, const std::vector< std::any > &args)=0
	Asynchronously executes the delegate on the thread that created this object.
virtual std::optional< object_ref >	invoke (delegate< void()> value)=0
	Synchronously executes the delegate on the thread that created this object and marshals the call to the creating thread.
virtual std::optional< object_ref >	invoke (delegate< void(std::vector< std::any >)> method, const std::vector< std::any > &args)=0
	Synchronously executes the delegate on the thread that created this object and marshals the call to the creating thread.
virtual std::optional< object_ref >	invoke (delegate< void(std::vector< std::any >)> method, std::any arg)=0
	Synchronously executes the delegate on the thread that created this object and marshals the call to the creating thread.
control &	operator<< (control &child)
	Add child control.
control &	operator>> (control &child)
	Remove child control.
Public Member Functions inherited from xtd::object
	object ()=default
	Create a new instance of the ultimate base class object.
bool	equals (const object &obj) const noexcept
	Determines whether the specified object is equal to the current object.
virtual size_t	get_hash_code () const noexcept
	Serves as a hash function for a particular type.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<typename object_t >
std::unique_ptr< object_t >	memberwise_clone () const noexcept
	Creates a shallow copy of the current object.
Public Member Functions inherited from xtd::forms::iwin32_window
Public Member Functions inherited from xtd::iclonable
Public Member Functions inherited from xtd::icomparable< control >
virtual int32	compare_to (const control &obj) const noexcept=0
	Compares the current instance with another object of the same type.
Public Member Functions inherited from xtd::iequatable< control >
virtual bool	equals (const control &) const noexcept=0
	Indicates whether the current object is equal to another object of the same type.
Public Member Functions inherited from xtd::isynchronize_invoke
Static Public Member Functions inherited from xtd::forms::control
static bool	check_for_illegal_cross_thread_calls () noexcept
	Gets a value indicating whether to catch calls on the wrong thread that access a xtd::forms::contrtol::handle property when an application is being debugged.
static void	check_for_illegal_cross_thread_calls (bool value)
	Sets a value indicating whether to catch calls on the wrong thread that access a xtd::forms::contrtol::handle property when an application is being debugged.
static forms::keys	modifier_keys () noexcept
	Gets a value indicating which of the modifier keys (SHIFT, CTRL, and ALT) is in a pressed state.
static forms::mouse_buttons	mouse_buttons () noexcept
	Gets a value indicating which of the mouse buttons is in a pressed state.
static xtd::drawing::point	mouse_position () noexcept
	Gets the position of the mouse cursor in screen coordinates.
static control	create ()
	A factory to create a specified control.
static control	create (const drawing::point &location)
	A factory to create a specified control with specified location.
static control	create (const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified location, and size.
static control	create (const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified location, size, and name.
static control	create (const control &paren)
	A factory to create a specified control with specified parent.
static control	create (const control &parent, const drawing::point &location)
	A factory to create a specified control with specified parent, location, size, and name.
static control	create (const control &parent, const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified parent, location, and size.
static control	create (const control &parent, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified parent, location, size, and name.
template<typename control_t >
static control_t	create ()
	A factory to create a specified control.
template<typename control_t >
static control_t	create (const drawing::point &location)
	A factory to create a specified control with specified location.
template<typename control_t >
static control_t	create (const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified location, and size.
template<typename control_t >
static control_t	create (const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified location, size, and name.
template<typename control_t >
static control_t	create (const control &parent)
	A factory to create a specified control with specified parent.
template<typename control_t >
static control_t	create (const control &parent, const drawing::point &location)
	A factory to create a specified control with specified parent, and location.
template<typename control_t >
static control_t	create (const control &parent, const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified parent, location, and size.
template<typename control_t >
static control_t	create (const control &parent, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified parent, location, size, and name.
template<typename control_t >
static control_t	create (const xtd::ustring &text)
	A factory to create a specified control with specified text.
template<typename control_t >
static control_t	create (const xtd::ustring &text, const drawing::point &location)
	A factory to create a specified control with specified text, and location.
template<typename control_t >
static control_t	create (const xtd::ustring &text, const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified text, location, and size.
template<typename control_t >
static control_t	create (const xtd::ustring &text, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified text, location,size, and name.
template<typename control_t >
static control_t	create (const control &parent, const xtd::ustring &text)
	A factory to create a specified control with specified parent, and text.
template<typename control_t >
static control_t	create (const control &parent, const xtd::ustring &text, const drawing::point &location)
	A factory to create a specified control with specified parent, text, and location.
template<typename control_t >
static control_t	create (const control &parent, const xtd::ustring &text, const drawing::point &location, const drawing::size &size)
	A factory to create a specified control with specified parent, text, location, and size.
template<typename control_t >
static control_t	create (const control &parent, const xtd::ustring &text, const drawing::point &location, const drawing::size &size, const xtd::ustring &name)
	A factory to create a specified control with specified parent, text, location, size, and name.
static std::optional< control_ref >	from_child_handle (intptr handle)
	Retrieves the control that contains the specified handle.
static std::optional< control_ref >	from_handle (intptr handle)
	Returns the control that is currently associated with the specified handle.
Static Public Member Functions inherited from xtd::object
static bool	equals (const object &object_a, const object &object_b) noexcept
	Determines whether the specified object instances are considered equal.
static bool	reference_equals (const object &object_a, const object &object_b) noexcept
	Determines whether the specified object instances are the same instance.
Protected Member Functions inherited from xtd::forms::control
xtd::forms::visual_styles::control_state	control_state () const noexcept
	Gets state.
virtual drawing::color	default_back_color () const noexcept
	Gets the default background color of the control.
virtual forms::cursor	default_cursor () const noexcept
	Gets the default cursor for the control.
virtual drawing::font	default_font () const noexcept
	Gets the default font of the control.
virtual drawing::color	default_fore_color () const noexcept
	Gets the default foreground color of the control.
virtual void	create_handle ()
	Creates a handle for the control.
virtual void	destroy_handle ()
	Destroys the handle associated with the control.
virtual void	def_wnd_proc (message &message)
	Sends the specified message to the default window procedure.
bool	get_style (control_styles flag) const noexcept
	Retrieves the value of the specified control style bit for the control.
virtual drawing::size	measure_control () const noexcept
	Measure this control.
drawing::size	measure_text () const noexcept
	Measure this control text.
virtual void	on_auto_size_changed (const event_args &e)
	Raises the xtd::forms::control::auto_size_changed event.
virtual void	on_back_color_changed (const event_args &e)
	Raises the xtd::forms::control::back_color_changed event.
virtual void	on_background_image_changed (const event_args &e)
	Raises the xtd::forms::control::background_image_changed event.
virtual void	on_background_image_layout_changed (const event_args &e)
	Raises the xtd::forms::control::background_image_layout_changed event.
virtual void	on_control_appearance_changed (const event_args &e)
	Raises the control::control_appearance_changed event.
virtual void	on_click (const event_args &e)
	Raises the xtd::forms::control::click event.
virtual void	on_client_size_changed (const event_args &e)
	Raises the xtd::forms::control::client_size_changed event.
virtual void	on_control_added (const control_event_args &e)
	Raises the xtd::forms::control::control_added event.
virtual void	on_control_removed (const control_event_args &e)
	Raises the xtd::forms::control::control_removed event.
virtual void	on_create_control ()
	Raises the xtd::forms::control::create_control event.
virtual void	on_cursor_changed (const event_args &e)
	Raises the xtd::forms::control::cursor_changed event.
virtual void	on_destroy_control ()
	Raises the xtd::forms::control::destroy_control event.
virtual void	on_dock_changed (const event_args &e)
	Raises the xtd::forms::control::dock_changed event.
virtual void	on_double_click (const event_args &e)
	Raises the xtd::forms::control::double_click event.
virtual void	on_enabled_changed (const event_args &e)
	Raises the xtd::forms::control::enabled_changed event.
virtual void	on_fore_color_changed (const event_args &e)
	Raises the xtd::forms::control::fore_color_changed event.
virtual void	on_font_changed (const event_args &e)
	Raises the xtd::forms::control::font_changed event.
virtual void	on_got_focus (const event_args &e)
	Raises the xtd::forms::control::got_focus event.
virtual void	on_handle_destroyed (const event_args &e)
	Raises the xtd::forms::control::handle_destroyed event.
virtual void	on_help_requested (help_event_args &e)
	Raises the xtd::forms::control::help_requested event.
virtual void	on_key_down (key_event_args &e)
	Raises the xtd::forms::control::key_down event.
virtual void	on_key_press (key_press_event_args &e)
	Raises the xtd::forms::control::key_press event.
virtual void	on_key_up (key_event_args &e)
	Raises the xtd::forms::control::key_up event.
virtual void	on_layout (const event_args &e)
	Raises the xtd::forms::control::layout event.
virtual void	on_location_changed (const event_args &e)
	Raises the xtd::forms::control::location_changed event.
virtual void	on_lost_focus (const event_args &e)
	Raises the xtd::forms::control::lost_focus event.
virtual void	on_mouse_click (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_click event.
virtual void	on_mouse_double_click (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_double_click event.
virtual void	on_mouse_down (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_down event.
virtual void	on_mouse_enter (const event_args &e)
	Raises the xtd::forms::control::mouse_enter event.
virtual void	on_mouse_horizontal_wheel (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_horizontal_wheel event.
virtual void	on_mouse_leave (const event_args &e)
	Raises the xtd::forms::control::mouse_leave event.
virtual void	on_mouse_move (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_move event.
virtual void	on_mouse_up (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_up event.
virtual void	on_mouse_wheel (const mouse_event_args &e)
	Raises the xtd::forms::control::mouse_wheel event.
virtual void	on_move (const event_args &e)
	Raises the xtd::forms::control::move event.
virtual void	on_paint (paint_event_args &e)
	Raises the xtd::forms::control::paint event.
virtual void	on_paint_background (paint_event_args &e)
	Paints the background of the xtd::forms::control.
virtual void	on_parent_back_color_changed (const event_args &e)
	Raises the xtd::forms::control::parent_back_color_changed event.
virtual void	on_parent_cursor_changed (const event_args &e)
	Raises the xtd::forms::control::parent_cursor_changed event.
virtual void	on_parent_changed (const event_args &e)
	Raises the xtd::forms::control::parent_changed event.
virtual void	on_parent_enabled_changed (const event_args &e)
	Raises the xtd::control::enabled_changed event when the xtd::control::enabled property value of the control's container changes..
virtual void	on_parent_fore_color_changed (const event_args &e)
	Raises the xtd::forms::control::parent_fore_color_changed event.
virtual void	on_parent_font_changed (const event_args &e)
	Raises the xtd::forms::control::parent_font_changed event.
virtual void	on_resize (const event_args &e)
	Raises the xtd::forms::control::region event.
virtual void	on_region_changed (const event_args &e)
	Raises the xtd::forms::control::region_changed event.
virtual void	on_right_to_left_changed (const event_args &e)
	Raises the xtd::forms::control::right_to_left_changed event.
virtual void	on_size_changed (const event_args &e)
	Raises the xtd::forms::control::size_changed event.
virtual void	on_style_sheet_changed (const event_args &e)
	Raises the xtd::forms::control::style_sheet_changed event.
virtual void	on_system_colors_changed (const event_args &e)
	Raises the control::system_colors_changed event.
virtual void	on_tab_stop_changed (const event_args &e)
	Raises the xtd::forms::control::tab_stop_changed event.
virtual void	on_text_changed (const event_args &e)
	Raises the xtd::forms::control::text_changed event.
virtual void	on_visible_changed (const event_args &e)
	Raises the xtd::forms::control::visible_changed event.
void	post_recreate_handle () noexcept
virtual void	recreate_handle ()
	Forces the re-creation of the handle for the control.
void	set_can_focus (bool value)
	Sets a value indicating whether the control can receive focus.
virtual void	set_text (const xtd::ustring &text)
	Sets the text associated with this control.
void	set_parent (intptr handle)
	Sets the parent handle of the control.
void	set_style (control_styles flag, bool value)
	Sets a specified control_styles flag to either true or false.
Protected Member Functions inherited from xtd::forms::component
	component ()
	Initialises a new instance of the component class.
bool	design_mode () const noexcept
	Gets a value that indicates whether the component is currently in design mode.
Static Protected Member Functions inherited from xtd::forms::control
static void	set_mouse_buttons (forms::mouse_buttons value)
	Sets a value indicating which of the mouse buttons is in a pressed state.

Constructor & Destructor Documentation

track_bar()

xtd::forms::track_bar::track_bar

(

)

Initializes a new instance of the track_bar class.

Remarks

The track_bar is created with a default horizontal orientation and a range of 0 to 10, with a tick mark shown for every value.

Member Function Documentation

clone()

std::unique_ptr< xtd::object > xtd::forms::track_bar::clone ( ) const

overrideprotectedvirtual

Creates a new object that is a copy of the current instance.

Returns

A new object that is a copy of this instance.

Notes to Implementers

All controls must be override the clone method.

Reimplemented from xtd::forms::control.

create() [1/32]

static track_bar xtd::forms::track_bar::create ( )

static

A factory to create an xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [2/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent )

static

A factory to create an xtd::forms::track_bar with specified parent.

Parameters

parent

The parent that contains the new created xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [3/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified parent, and location.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [4/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified parent, location, and size.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [5/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified parent, location, size, and name.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [6/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value  )

static

A factory to create an xtd::forms::track_bar with specified parent, and value.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.

Returns

New xtd::forms::track_bar created.

create() [7/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, and location.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [8/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, location, and size.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [9/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, location, size, and name.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [10/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  maximum  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, and maximum.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.

Returns

New xtd::forms::track_bar created.

create() [11/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  maximum, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, maximum, and location.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [12/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  maximum, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, maximum, location, and size.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [13/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  maximum, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, maximum, location, size, and name.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [14/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  minimum, int32  maximum  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, minimum, and maximum.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.

Returns

New xtd::forms::track_bar created.

create() [15/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  minimum, int32  maximum, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, and location.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [16/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  minimum, int32  maximum, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, location, and size.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [17/32]

static track_bar xtd::forms::track_bar::create ( const control &  parent, int32  value, int32  minimum, int32  maximum, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified parent, value, minimum, maximum, location, size, and name.

Parameters

parent	The parent that contains the new created xtd::forms::track_bar.
value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [18/32]

static track_bar xtd::forms::track_bar::create ( const drawing::point &  location )

static

A factory to create an xtd::forms::track_bar with specified location.

Parameters

location

A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [19/32]

static track_bar xtd::forms::track_bar::create ( const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified location, and size.

Parameters

location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [20/32]

static track_bar xtd::forms::track_bar::create ( const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified location, size, and name.

Parameters

location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [21/32]

static track_bar xtd::forms::track_bar::create ( int32  value )

static

A factory to create an xtd::forms::track_bar with specified value.

Parameters

value

A numeric value that is within the minimum and maximum range. The default value is 0.

Returns

New xtd::forms::track_bar created.

create() [22/32]

static track_bar xtd::forms::track_bar::create ( int32  value, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified value, and location.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [23/32]

static track_bar xtd::forms::track_bar::create ( int32  value, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified value, location, and size.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [24/32]

static track_bar xtd::forms::track_bar::create ( int32  value, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified value, location, size, and name.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [25/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  maximum  )

static

A factory to create an xtd::forms::track_bar with specified value, and maximum.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.

Returns

New xtd::forms::track_bar created.

create() [26/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  maximum, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, and location.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [27/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  maximum, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified value, maximum, location, and size.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [28/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  maximum, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified value, maximum, location, size, and name.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [29/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  minimum, int32  maximum  )

static

A factory to create an xtd::forms::track_bar with specified value, minimum, and maximum.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.

Returns

New xtd::forms::track_bar created.

create() [30/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  minimum, int32  maximum, const drawing::point &  location  )

static

A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, and location.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [31/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  minimum, int32  maximum, const drawing::point &  location, const drawing::size &  size  )

static

A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, location, and size.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create() [32/32]

static track_bar xtd::forms::track_bar::create ( int32  value, int32  minimum, int32  maximum, const drawing::point &  location, const drawing::size &  size, const xtd::ustring &  name  )

static

A factory to create an xtd::forms::track_bar with specified value, minimum, maximum, location, size, and name.

Parameters

value	A numeric value that is within the minimum and maximum range. The default value is 0.
minimum	The lower limit of values of the scrollable range.
maximum	The upper limit of values of the scrollable range.
location	A xtd::drawing::point that represent location of the xtd::forms::track_bar.
size	A xtd::drawing::size that represent size of the xtd::forms::track_bar.
name	The name of the xtd::forms::track_bar.

Returns

New xtd::forms::track_bar created.

create_params()

forms::create_params xtd::forms::track_bar::create_params ( ) const

overrideprotectedvirtualnoexcept

Gets the required creation parameters when the control handle is created.

Returns

A create_params that contains the required creation parameters when the handle to the control is created.

Reimplemented from xtd::forms::control.

default_size()

drawing::size xtd::forms::track_bar::default_size ( ) const

overrideprotectedvirtualnoexcept

Gets the default size of the control.

Returns

The default size of the control.

Reimplemented from xtd::forms::control.

large_change() [1/2]

virtual int32 xtd::forms::track_bar::large_change ( ) const

virtualnoexcept

Gets a value to be added to or subtracted from the value property when the scroll box is moved a large distance.

Returns

A numeric value. The default is 5.

Remarks

When the user presses the PAGE UP or PAGE DOWN key or clicks the track bar on either side of the scroll box, the value property changes according to the value set in the large_change property. You might consider setting the large_change value to a percentage of the height (for a vertically oriented track bar) or width (for a horizontally oriented track bar) value. This keeps the distance your track bar moves proportionate to its size.

large_change() [2/2]

virtual track_bar & xtd::forms::track_bar::large_change ( int32  large_change )

virtual

Sets a value to be added to or subtracted from the value property when the scroll box is moved a large distance.

Parameters

large_change

A numeric value. The default is 5.

Returns

Current track_bar instance.

Remarks

When the user presses the PAGE UP or PAGE DOWN key or clicks the track bar on either side of the scroll box, the value property changes according to the value set in the large_change property. You might consider setting the large_change value to a percentage of the height (for a vertically oriented track bar) or width (for a horizontally oriented track bar) value. This keeps the distance your track bar moves proportionate to its size.

maximum() [1/2]

virtual int32 xtd::forms::track_bar::maximum ( ) const

virtualnoexcept

Gets the upper limit of the range this track_bar is working with.

Returns

The maximum value for the track_bar. The default is 10.

maximum() [2/2]

virtual track_bar & xtd::forms::track_bar::maximum ( int32  maximum )

virtual

sets the upper limit of the range this track_bar is working with.

Parameters

maximum

The maximum value for the track_bar. The default is 10.

Returns

Current track_bar instance.

Remarks

You can use the set_range method to set both the maximum and minimum properties at the same time.

minimum() [1/2]

virtual int32 xtd::forms::track_bar::minimum ( ) const

virtualnoexcept

Gets the lower limit of the range this track_bar is working with.

Returns

The minimum value for the track_bar. The default is 0.

minimum() [2/2]

virtual track_bar & xtd::forms::track_bar::minimum ( int32  minimum )

virtual

Sets the lower limit of the range this track_bar is working with.

Parameters

minimum

The minimum value for the track_bar. The default is 0.

Returns

Current track_bar instance.

Remarks

You can use the set_range method to set both the maximum and minimum properties at the same time.

on_handle_created()

void xtd::forms::track_bar::on_handle_created ( const event_args &  e )

overrideprotectedvirtual

Overrides control::on_handle_created(const event_args&)

Parameters

e	A EventArgs that contains the event data.

Reimplemented from xtd::forms::control.

on_scroll()

virtual void xtd::forms::track_bar::on_scroll ( const event_args &  e )

protectedvirtual

Raises the track_bar::scroll event.

Parameters

e	An event_args that contains the event data.

Remarks

You can use the OnScroll event to update other controls as the position of the scroll box changes.

Raising an event invokes the event handler through a delegate.

The on_scroll method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

Remarks

When overriding on_scroll(const event_args&) in a derived class, be sure to call the base class' on_scroll(const event_args&) method so that registered delegates receive the event.

on_value_changed()

virtual void xtd::forms::track_bar::on_value_changed ( const event_args &  e )

protectedvirtual

Raises the track_bar::value_changed event.

Parameters

e	The event_args that contains the event data.

orientation() [1/2]

virtual forms::orientation xtd::forms::track_bar::orientation ( ) const

virtualnoexcept

Gets a value indicating the horizontal or vertical orientation of the track bar.

Returns

One of the orientation values.

orientation() [2/2]

virtual track_bar & xtd::forms::track_bar::orientation ( forms::orientation  orientation )

virtual

Sets a value indicating the horizontal or vertical orientation of the track bar.

Parameters

orientation

One of the orientation values.

Returns

Current track_bar instance.

Remarks

When the orientation property is set to orientation::horizontal, the scroll box moves from left to right as the value increases. When the orientation property is set to orientation::vertical, the scroll box moves from bottom to top as the Value increases.

set_bounds_core()

void xtd::forms::track_bar::set_bounds_core ( int32  x, int32  y, int32  width, int32  height, bounds_specified  specified  )

overrideprotectedvirtual

Performs the work of setting the specified bounds of this control.

Parameters

x	The new left property value of the control.
y	The new top property value of the control.
width	The new width property value of the control.
height	The new height property value of the control.
specified	A bitwise combination of the bounds_specified values.

Reimplemented from xtd::forms::control.

set_client_size_core()

void xtd::forms::track_bar::set_client_size_core ( int32  width, int32  height  )

overrideprotectedvirtual

Sets the size of the client area of the control.

Parameters

width	The client area width, in pixels.
height	The client area height, in pixels.

Reimplemented from xtd::forms::control.

set_range()

void xtd::forms::track_bar::set_range	(	int32	min_value,
		int32	max_value
	)

Sets the minimum and maximum values for a xtd::forms::track_bar.

Parameters

min_value	The lower limit of the range of the track bar.
max_value	The upper limit of the range of the track bar.

Remarks

You can use this method to set the entire range for the xtd::forms::track_bar at the same time. To set the minimum or maximum values individually, use the xtd::forms::track_bar::minimum and xtd::forms::track_bar::maximum properties. If the min_value parameter is greater than the max_value parameter, max_value is set equal to min_value.

small_change() [1/2]

virtual int32 xtd::forms::track_bar::small_change ( ) const

virtualnoexcept

Gets he value added to or subtracted from the Value property when the scroll box is moved a small distance.

Returns

A numeric value. The default value is 1.

Remarks

When the user presses one of the arrow keys, the value property changes according to the value set in the small_change property.

You might consider setting the value of small_change to a percentage of the value of the height (for a vertically oriented track bar) or width (for a horizontally oriented track bar) property. This sets the distance your track bar moves proportionate to its size.

small_change() [2/2]

virtual track_bar & xtd::forms::track_bar::small_change ( int32  small_change )

virtual

Sets the value added to or subtracted from the Value property when the scroll box is moved a small distance.

Parameters

small_change

A numeric value. The default value is 1.

Returns

Current track_bar instance.

Remarks

When the user presses one of the arrow keys, the value property changes according to the value set in the small_change property.

You might consider setting the value of small_change to a percentage of the value of the height (for a vertically oriented track bar) or width (for a horizontally oriented track bar) property. This sets the distance your track bar moves proportionate to its size.

tick_frequency() [1/2]

virtual int32 xtd::forms::track_bar::tick_frequency ( ) const

virtualnoexcept

Gets a value that specifies the delta between ticks drawn on the control.

Returns

The numeric value representing the delta between ticks. The default is 1.

Remarks

For a track_bar with a large range of values between the minimum and the maximum properties, it might be impractical to draw all the ticks for values on the control. For example, if you have a control with a range of 100, passing in a value of 5 here causes the control to draw 20 ticks. In this case, each tick represents five units in the range of values.

tick_frequency() [2/2]

virtual track_bar & xtd::forms::track_bar::tick_frequency ( int32  tick_frequency )

virtual

Sets a value that specifies the delta between ticks drawn on the control.

Parameters

tick_frequency

The numeric value representing the delta between ticks. The default is 1.

Returns

Current track_bar instance.

Remarks

For a track_bar with a large range of values between the minimum and the maximum properties, it might be impractical to draw all the ticks for values on the control. For example, if you have a control with a range of 100, passing in a value of 5 here causes the control to draw 20 ticks. In this case, each tick represents five units in the range of values.

tick_style() [1/2]

virtual forms::tick_style xtd::forms::track_bar::tick_style ( ) const

virtualnoexcept

Gets a value indicating how to display the tick marks on the track bar.

Returns

One of the Tick_style values. The default is bottom_right.

Remarks

You can use the tick_style property to modify the manner in which the tick marks are displayed on the track bar.

tick_style() [2/2]

virtual track_bar & xtd::forms::track_bar::tick_style ( forms::tick_style  tick_style )

virtual

Sets a value indicating how to display the tick marks on the track bar.

Parameters

tick_style

One of the tick_style values. The default is bottom_right.

Returns

Current track_bar instance.

Remarks

You can use the tick_style property to modify the manner in which the tick marks are displayed on the track bar.

to_string()

xtd::ustring xtd::forms::track_bar::to_string ( ) const

overridevirtualnoexcept

Returns a string that represents the track_bar control.

Returns

A string that represents the current progress_bar.

Remarks

The return string includes the type and the values for the minimum, maximum, and value properties.

Reimplemented from xtd::forms::control.

value() [1/2]

virtual int32 xtd::forms::track_bar::value ( ) const

virtualnoexcept

Gets a numeric value that represents the current position of the scroll box on the track bar.

Returns

A numeric value that is within the minimum and maximum range. The default value is 0.

Remarks

The Value property contains the number that represents the current position of the scroll box on the track bar.

value() [2/2]

virtual track_bar & xtd::forms::track_bar::value ( int32  value )

virtual

Sets a numeric value that represents the current position of the scroll box on the track bar.

Parameters

value

A numeric value that is within the minimum and maximum range. The default value is 0.

Returns

Current track_bar instance.

Remarks

The Value property contains the number that represents the current position of the scroll box on the track bar.

wnd_proc()

void xtd::forms::track_bar::wnd_proc ( message &  message )

overrideprotectedvirtual

Processes Windows messages.

Parameters

m	The Windows Message to process.

Remarks

All messages are sent to the wnd_proc method after getting filtered through the pre_process_message method.

Reimplemented from xtd::forms::control.

Member Data Documentation

scroll

event<track_bar, event_handler> xtd::forms::track_bar::scroll

Occurs when either a mouse or keyboard action moves the scroll box.

Remarks

For more information about handling events, see Handling and Raising Events.

value_changed

event<track_bar, event_handler> xtd::forms::track_bar::value_changed

Occurs when the value property of a track bar changes, either by movement of the scroll box or by manipulation in code.

Remarks

For more information about handling events, see Handling and Raising Events.

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The documentation for this class was generated from the following file:

• xtd.forms/include/xtd/forms/track_bar.h