Inheritance diagram for xtd::drawing::native::region:

Definition

Contains region native API.

Namespace: xtd::drawing::native

Library: xtd.drawing.native

Warning: Internal use only

Protected Static Methods
static intptr	create ()
	Creates a region with an infinite interior.

static intptr	create_from_rect (float x, float y, float width, float height)
	Creates a region from the specified rectangle.

static intptr	create_from_graphics_path (intptr path)
	Creates a region with the specified graphics path.

static void	destroy (intptr handle)
	Destroys the region.

static void	complement (intptr handle, intptr region)
	Updates thie region to contain the portion of the specified region that does not intersect with the region.

static void	exclude (intptr handle, intptr region)
	Updates the region to contain only the portion of its interior that does not intersect with the specified region.

static intptr	from_hrgn (intptr hrgn)
	Creates a region from a handle to the specified existing GDI region.

static void	get_bounds (intptr handle, float &x, float &y, float &width, float &height)
	Gets a rectangle that represents a rectangle that bounds in pixels the region.

static intptr	get_hrgn (intptr handle, intptr grpahics)
	Returns a Windows handle to the region in the specified graphics context.

static void	intersect (intptr handle, intptr region)
	Updates the region to the intersection of itself with the specified region.

static bool	is_empty (intptr handle)
	Tests whether the region has an empty interior.

static bool	is_empty (intptr handle, intptr grpahics)
	Tests whether the region has an empty interior on the specified drawing surface.

static bool	is_infinite (intptr handle)
	Tests whether the region has an infinite interior.

static bool	is_infinite (intptr handle, intptr grpahics)
	Tests whether the region has an infinite interior on the specified drawing surface.

static bool	is_visible (intptr handle, float x, float y)
	Tests whether the specified point is contained within the region when drawn using the specified graphics.

static bool	is_visible (intptr handle, float x, float y, intptr grpahics)
	Tests whether the specified point is contained within the region when drawn using the specified graphics.

static bool	is_visible (intptr handle, float x, float y, float width, float height)
	Tests whether any portion of the specified rectangle is contained within the region.

static bool	is_visible (intptr handle, float x, float y, float width, float height, intptr grpahics)
	Tests whether any portion of the specified rectangle is contained within this xtd::drawing::region when drawn using the specified xtd::drawing::graphics.

static void	make_empty (intptr handle)
	Initializes the region to an empty interior.

static void	make_union (intptr handle, intptr region)
	Updates the region to the union of itself and the specified region.

static void	make_xor (intptr handle, intptr region)
	Updates the region to the union minus the intersection of itself with the specified region.

static void	release_hrgn (intptr region_handle)
	Releases the handle of the region.

static void	translate (intptr handle, float dx, float dy)
	Offsets the coordinates of the region by the specified amount.

Member Function Documentation

◆ create()

static intptr xtd::drawing::native::region::create ( )

staticprotected

Creates a region with an infinite interior.

Returns: The created region handle.

Warning: Internal use only

◆ create_from_rect()

static intptr xtd::drawing::native::region::create_from_rect	(	float	x,
		float	y,
		float	width,
		float	height
	)

staticprotected

Creates a region from the specified rectangle.

Parameters

x	A x-coordinate of rectangle that defines the interior of the region.
y	A y-coordinate of rectangle that defines the interior of the region.
width	A width of rectangle that defines the interior of the region.
height	A height of rectangle that defines the interior of the region.

Returns: The created region handle.

Warning: Internal use only

◆ create_from_graphics_path()

static intptr xtd::drawing::native::region::create_from_graphics_path ( intptr path )

staticprotected

Creates a region with the specified graphics path.

Parameters

path	A graphics path handle that defines the region.

Returns: The created region handle.

Warning: Internal use only

◆ destroy()

static void xtd::drawing::native::region::destroy ( intptr handle )

staticprotected

Destroys the region.

Parameters

handle The region handle to destroy.

Warning: Internal use only

◆ complement()

static void xtd::drawing::native::region::complement	(	intptr	handle,
		intptr	region
	)

staticprotected

Updates thie region to contain the portion of the specified region that does not intersect with the region.

Parameters

handle	The region handle.
region	The region handle to complement the region.

Warning: Internal use only

◆ exclude()

static void xtd::drawing::native::region::exclude	(	intptr	handle,
		intptr	region
	)

staticprotected

Updates the region to contain only the portion of its interior that does not intersect with the specified region.

Parameters

handle	The region handle.
region	The region handle to exclude from the region.

Warning: Internal use only

◆ from_hrgn()

static intptr xtd::drawing::native::region::from_hrgn ( intptr hrgn )

staticprotected

Creates a region from a handle to the specified existing GDI region.

Parameters

hrgn	A handle to an existing region.

Returns: The created region handle.

Warning: Internal use only

◆ get_bounds()

static void xtd::drawing::native::region::get_bounds	(	intptr	handle,
		float &	x,
		float &	y,
		float &	width,
		float &	height
	)

staticprotected

Gets a rectangle that represents a rectangle that bounds in pixels the region.

Parameters

handle	The region handle.
x	The x-coordinate of rectangle that represents the bounding rectangle in pixels for the region.
y	The y-coordinate of rectangle that represents the bounding rectangle in pixels for the region.
width	The width of rectangle that represents the bounding rectangle in pixels for the region.
height	The height of rectangle that represents the bounding rectangle in pixels for the region.

Warning: Internal use only

◆ get_hrgn()

static intptr xtd::drawing::native::region::get_hrgn	(	intptr	handle,
		intptr	grpahics
	)

staticprotected

Returns a Windows handle to the region in the specified graphics context.

Parameters

handle	The region handle.
graphics	The graphics handle on which the region is drawn.

Returns: A Windows handle to the region.

Warning: Internal use only

◆ intersect()

static void xtd::drawing::native::region::intersect	(	intptr	handle,
		intptr	region
	)

staticprotected

Updates the region to the intersection of itself with the specified region.

Parameters

handle	The region handle.
region	The region handle to intersect with the region.

Warning: Internal use only

◆ is_empty() [1/2]

static bool xtd::drawing::native::region::is_empty ( intptr handle )

staticprotected

Tests whether the region has an empty interior.

Parameters

handle The region handle.

Returns: true if the interior of the region is empty; otherwise, false.

Warning: Internal use only

◆ is_empty() [2/2]

static bool xtd::drawing::native::region::is_empty	(	intptr	handle,
		intptr	grpahics
	)

staticprotected

Tests whether the region has an empty interior on the specified drawing surface.

Parameters

handle	The region handle.
graphics	A graphics handle that represents a drawing surface.

Returns: true if the interior of the region is empty when the transformation associated with graphics is applied; otherwise, false.

Warning: Internal use only

◆ is_infinite() [1/2]

static bool xtd::drawing::native::region::is_infinite ( intptr handle )

staticprotected

Tests whether the region has an infinite interior.

Parameters

handle The region handle.

Returns: true if the interior of the region is infinite; otherwise, false.

Warning: Internal use only

◆ is_infinite() [2/2]

static bool xtd::drawing::native::region::is_infinite	(	intptr	handle,
		intptr	grpahics
	)

staticprotected

Tests whether the region has an infinite interior on the specified drawing surface.

Parameters

handle	The region handle.
graphics	A graphics handle that represents a drawing surface.

Returns: true if the interior of the region is infinite when the transformation associated with graphics is applied; otherwise, false.

Warning: Internal use only

◆ is_visible() [1/4]

static bool xtd::drawing::native::region::is_visible	(	intptr	handle,
		float	x,
		float	y
	)

staticprotected

Tests whether the specified point is contained within the region when drawn using the specified graphics.

Parameters

handle	The region handle.
x	The x-coordinate of the point to test.
y	The y-coordinate of the point to test.

Returns: true when the specified point is contained within the region; otherwise, false.

Warning: Internal use only

◆ is_visible() [2/4]

static bool xtd::drawing::native::region::is_visible	(	intptr	handle,
		float	x,
		float	y,
		intptr	grpahics
	)

staticprotected

Tests whether the specified point is contained within the region when drawn using the specified graphics.

Parameters

handle	The region handle.
x	The x-coordinate of the point to test.
y	The y-coordinate of the point to test.
graphics	The graphics handle that represents a draing surface.

Returns: true when the specified point is contained within the region; otherwise, false.

Warning: Internal use only

◆ is_visible() [3/4]

static bool xtd::drawing::native::region::is_visible	(	intptr	handle,
		float	x,
		float	y,
		float	width,
		float	height
	)

staticprotected

Tests whether any portion of the specified rectangle is contained within the region.

Parameters

handle	The region handle.
x	The x-coordinate of the upper-left corner of the rectangle to test.
y	The y-coordinate of the upper-left corner of the rectangle to test.
width	The width of the rectangle to test.
height	The height of the rectangle to test.

Returns: true when any portion of the specified rectangle is contained within the region; otherwise, false.

Warning: Internal use only

◆ is_visible() [4/4]

static bool xtd::drawing::native::region::is_visible	(	intptr	handle,
		float	x,
		float	y,
		float	width,
		float	height,
		intptr	grpahics
	)

staticprotected

Tests whether any portion of the specified rectangle is contained within this xtd::drawing::region when drawn using the specified xtd::drawing::graphics.

Parameters

handle	The region handle.
x	The x-coordinate of the upper-left corner of the rectangle to test.
y	The y-coordinate of the upper-left corner of the rectangle to test.
width	The width of the rectangle to test.
height	The height of the rectangle to test.
graphics	A graphics handle that represents a graphics context.

Returns: true when any portion of the specified rectangle is contained within the region; otherwise, false.

Warning: Internal use only

◆ make_empty()

static void xtd::drawing::native::region::make_empty ( intptr handle )

staticprotected

Initializes the region to an empty interior.

Parameters

handle The region handle.

Warning: Internal use only

◆ make_union()

static void xtd::drawing::native::region::make_union	(	intptr	handle,
		intptr	region
	)

staticprotected

Updates the region to the union of itself and the specified region.

Parameters

handle	The region handle.
region	The region handle to unite with the region.

Warning: Internal use only

◆ make_xor()

static void xtd::drawing::native::region::make_xor	(	intptr	handle,
		intptr	region
	)

staticprotected

Updates the region to the union minus the intersection of itself with the specified region.

Parameters

handle	The region handle.
path	The region handle to Xor with this xtd::drawing::region.

Warning: Internal use only

◆ release_hrgn()

static void xtd::drawing::native::region::release_hrgn ( intptr region_handle )

staticprotected

Releases the handle of the region.

Parameters

region_handle The handle to the region.

Warning: Internal use only

◆ translate()

static void xtd::drawing::native::region::translate	(	intptr	handle,
		float	dx,
		float	dy
	)

staticprotected

Offsets the coordinates of the region by the specified amount.

Parameters

handle	The region handle.
dx	The amount to offset the region horizontally.
dy	The amount to offset the region vertically.

Warning: Internal use only

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

xtd.drawing.native/include/xtd/drawing/native/region.h

Definition

Protected Static Methods

Member Function Documentation

◆ create()

◆ create_from_rect()

◆ create_from_graphics_path()

◆ destroy()

◆ complement()

◆ exclude()

◆ from_hrgn()

◆ get_bounds()

◆ get_hrgn()

◆ intersect()

◆ is_empty() [1/2]

◆ is_empty() [2/2]

◆ is_infinite() [1/2]

◆ is_infinite() [2/2]

◆ is_visible() [1/4]

◆ is_visible() [2/4]

◆ is_visible() [3/4]

◆ is_visible() [4/4]

◆ make_empty()

◆ make_union()

◆ make_xor()

◆ release_hrgn()

◆ translate()