xtd::drawing::imaging::property_item Class Reference

Inheritance diagram for xtd::drawing::imaging::property_item:

Definition

Encapsulates a metadata property to be included in an image file. Not inheritable.

Namespace

xtd::drawing::imaging

Library

xtd.drawing

Remarks

The data consists of: an identifier, the length (in bytes) of the property, the property type, and a pointer to the property value.

A property_item is not intended to be used as a stand-alone object. A property_item object is intended to be used by classes that are derived from image. A property_item object is used to retrieve and to change the metadata of existing image files, not to create the metadata. Therefore, the property_item class does not have a defined Public constructor, and you cannot create an instance of a property_item object.

To work around the absence of a Public constructor, use an existing property_item object instead of creating a new instance of the property_item class. For more information, see image.Getproperty_item.

Public Properties
int32	id () const noexcept
	Gets the ID of the property.
void	id (int32 id) noexcept
	Sets the ID of the property.
int32	len () const noexcept
	Gets the length (in bytes) of the value property.
void	len (int32 len) noexcept
	Sets the length (in bytes) of the value property. &param len An integer that represents the length (in bytes) of the value byte array.
int16	type () const noexcept
	Gets an integer that defines the type of data contained in the value property.
void	type (int16 type) noexcept
	Sets an integer that defines the type of data contained in the value property.
const std::vector< xtd::byte > &	value () const noexcept
	Gets the value of the property item.
std::vector< xtd::byte > &	value () noexcept
	Gets the value of the property item.
void	value (const std::vector< xtd::byte > &value) noexcept
	Sets the value of the property item.
bool	equals (const property_item &value) const noexcept override
virtual bool	equals (const object &obj) const noexcept
	Determines whether the specified object is equal to the current object.
template<typename object_a_t , typename object_b_t >
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.

Additional Inherited Members
Public Member Functions inherited from xtd::object
	object ()=default
	Create a new instance of the ultimate base class 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 >
xtd::uptr< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual xtd::string	to_string () const noexcept
	Returns a xtd::string that represents the current object.
Static Public Member Functions inherited from xtd::object
template<typename object_a_t , typename object_b_t >
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<typename object_a_t , typename object_b_t >
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.

Member Function Documentation

id() [1/2]

int32 xtd::drawing::imaging::property_item::id ( ) const

inlinenoexcept

Gets the ID of the property.

Returns

The integer that represents the ID of the property.

Remarks

The following table shows the property tags and their IDs.

ID	Property tag
0x000	property_tag_gps_ver
0x001	property_tag_gps_latitude_ref
0x002	property_tag_gps_latitude
0x003	property_tag_gp_longitude_ref
0x004	property_tag_gps_longitude
0x005	property_tag_gps_altitude_ref
0x006	property_tag_gps_altitude
0x007	property_tag_gps_gps_time
0x008	property_tag_gps_gps_satellites
0x009	property_tag_gps_gps_status
0x00A	property_tag_gps_gps_measure_mode
0x00B	property_tag_gps_gps_dop
0x00C	property_tag_gps_speed_ref
0x00D	property_tag_gps_speed
0x00E	property_tag_gps_track_ref
0x00F	property_tag_gps_track
0x010	property_tag_gps_img_dir_ref
0x011	property_tag_gps_img_dir
0x012	property_tag_gps_map_datum
0x013	property_tag_gps_dest_lat_ref
0x014	property_tag_gps_dest_lat
0x015	property_tag_gps_Dest_long_ref
0x016	property_tag_gps_dest_long
0x017	property_tag_gps_dest_bear _ref
0x018	property_tag_gps_dest_bear
0x019	property_tag_gps_dest_dist_ref
0x01A	property_tag_gps_dest_dist
0x0FE	property_tag_new_subfile_type
0x0FF	property_tag_subfileType
0x100	property_tag_image_width
0x101	property_tag_image_height
0x102	property_tag_bits_per_sample
0x103	property_tag_compression
0x106	property_tag_photometric_interp
0x107	property_tag_thresh_holding
0x108	property_tag_cell_width
0x109	property_tag_Cell_height
0x10A	property_tag_fill_order
0x10D	property_tag_document_name
0x10E	property_tag_image_description
0x10F	property_tag_equip_make
0x110	property_tag_equip_model
0x111	property_tag_strip_offsets
0x112	property_tag_orientation
0x115	property_tag_Samples_per_pixel
0x116	property_tag_rows_per_strip
0x117	property_tag_strip_bytes_count
0x118	property_tag_min_sample_value
0x119	property_tag_max_sample_value
0x11A	property_tag_xresolution
0x11B	property_tag_yresolution
0x11C	property_tag_planar_config
0x11D	property_tag_page_name
0x11E	property_tag_xposition
0x11F	property_tag_yposition
0x120	property_tag_free_offset
0x121	property_tag_free_byte_counts
0x122	property_tag_gray_response_unit
0x123	property_tag_gray_response_curve
0x124	property_tag_t4_option
0x125	property_tag_t6_option
0x128	property_tag_resolution_unit
0x129	property_tag_page_number
0x12D	property_tag_transfer_function
0x131	property_tag_software_used
0x132	property_tag_date_time
0x13B	property_tag_artist
0x13C	property_tag_host_computer
0x13D	property_tag_predictor
0x13E	property_tag_white_point
0x13F	property_tag_primary_chromaticities
0x140	property_tag_color_map
0x141	property_tag_halftone_hints
0x142	property_tag_tile_width
0x143	property_tag_tile_length
0x144	property_tag_tile_offset
0x145	property_tag_tile_byte_counts
0x14C	property_tag_ink_set
0x14D	property_tag_ink_names
0x14E	property_tag_number_of_inks
0x150	property_tag_dot_range
0x151	property_tag_target_printer
0x152	property_tag_extra_samples
0x153	property_tag_sample_format
0x154	property_tag_smin_sample_value
0x155	property_tag_smax_sample_value
0x156	property_tag_transfer_range
0x200	property_tag_jpeg_proc
0x201	property_tag_jpeg_inter_format
0x202	property_tag_jpeg_Inter_length
0x203	property_tag_jpeg_restart_interval
0x205	property_tag_jpeg_lossless_predictors
0x206	property_tag_jpeg_point_transforms
0x207	property_tag_jpeg_qtables
0x208	property_tag_jpeg_dctables
0x209	property_tag_jpeg_actables
0x211	property_tag_ycb_cr_coefficients
0x212	property_tag_ycb_cr_subsampling
0x213	property_tag_ycb_cr_positioning
0x214	property_tag_refblack_white
0x301	property_tag_gamma
0x302	property_tag_iccprofile_descriptor
0x303	property_tag_srgbrendering_intent
0x320	property_tag_image_title
0x5001	property_tag_resolution_xunit
0x5002	property_tag_resolution_yunit
0x5003	property_tag_resolution_xlength_unit
0x5004	property_tag_resolution_ylength_unit
0x5005	property_tag_print_flags
0x5006	property_tag_print_flags_version
0x5007	property_tag_print_flags_crop
0x5008	property_tag_print_flags_bleed_width
0x5009	property_tag_print_flags_bleed_width_scale
0x500A	property_tag_halfton_elpi
0x500B	property_tag_halfton_elpi_unit
0x500C	property_tag_halfton_edegree
0x500D	property_tag_halfton_eshape
0x500E	property_tag_halfton_emisc
0x500F	property_tag_halfton_escreen
0x5010	property_tag_jpeg_quality
0x5011	property_tag_grid_size
0x5012	property_tag_thumbnail_format
0x5013	property_tag_thumbnail_width
0x5014	property_tag_thumbnail_height
0x5015	property_tag_thumbnail_color_depth
0x5016	property_tag_thumbnail_planes
0x5017	property_tag_thumbnail_raw_bytes
0x5018	property_tag_thumbnail_size
0x5019	property_tag_thumbnail_compressed_size
0x501A	property_tag_color_transfer_function
0x501B	property_tag_thumbnail_data
0x5020	property_tag_thumbnail_image_width
0x5021	property_tag_thumbnail_image_height
0x5022	property_tag_thumbnail_bits_per_sample
0x5023	property_tag_thumbnail_compression
0x5024	property_tag_thumbnail_photometric_interp
0x5025	property_tag_thumbnail_image_description
0x5026	property_tag_thumbnail_equip_make
0x5027	property_tag_thumbnail_equip_model
0x5028	property_tag_thumbnail_strip_offsets
0x5029	property_tag_thumbnail_orientation
0x502A	property_tag_thumbnail_samples_per_pixel
0x502B	property_tag_thumbnail_rows_per_strip
0x502C	property_tag_thumbnail_strip_bytes_count
0x502D	property_tag_thumbnail_resolution_x
0x502E	property_tag_thumbnail_resolution_y
0x502F	property_tag_thumbnail_planar_config
0x5030	property_tag_thumbnail_resolution_unit
0x5031	property_tag_thumbnail_transfer_function
0x5032	property_tag_thumbnail_doftware_used
0x5033	property_tag_thumbnail_date_time
0x5034	property_tag_thumbnail_artist
0x5035	property_tag_thumbnail_white_point
0x5036	property_tag_thumbnail_primary_chromaticities
0x5037	property_tag_thumbnail_ycb_cr_coefficients
0x5038	property_tag_thumbnail_ycb_cr_subsampling
0x5039	property_tag_thumbnail_ycb_cr_positioning
0x503A	property_tag_thumbnail_ref_black_white
0x503B	property_tag_thumbnail_copyRight
0x5090	property_tag_luminance_table
0x5091	property_tag_chrominance_table
0x5100	property_tag_frame_delay
0x5101	property_tag_loop_count
0x5102	property_tag_global_palette
0x5103	property_tag_index_background
0x5104	property_tag_index_transparent
0x5110	property_tag_pixel_unit
0x5111	property_tag_pixel_per_unit_x
0x5112	property_tag_pixel_per_unit_y
0x5113	property_tag_palette_histogram
0x8298	property_tag_copyright
0x829A	property_tag_exif_exposureTime
0x829D	property_tag_exif_fnumber
0x8769	property_tag_exif_ifd
0x8773	property_tag_icc_profile
0x8822	property_tag_exif_exposure_prog
0x8824	property_tag_exif_spectral_sense
0x8825	property_tag_gps_ifd
0x8827	property_tag_exif_iso_speed
0x8828	property_tag_exif_oecf
0x9000	property_tag_exif_ver
0x9003	property_tag_exif_dt_orig
0x9004	property_tag_exif__dt_digitized
0x9101	property_tag_exif_comp_config
0x9102	property_tag_exif_comp_bpp
0x9201	property_tag_exif_shutter_speed
0x9202	property_tag_exif_aperture
0x9203	property_tag_exif_brightness
0x9204	property_tag_exif_exposure_bias
0x9205	property_tag_exif_max_aperture
0x9206	property_tag_exif_subject_dist
0x9207	property_tag_exif_metering_mode
0x9208	property_tag_exif_light_source
0x9209	property_tag_exif_flash
0x920A	property_tag_exif_focal_length
0x927C	property_tag_exif_maker_note
0x9286	property_tag_exif_user_comment
0x9290	property_tag_exif_dt_subsec
0x9291	property_tag_exif_dt_orig_ss
0x9292	property_tag_exif_dt_dig_ss
0xA000	property_tag_exif_fpx_ver
0xA001	property_tag_exif_color_space
0xA002	property_tag_exif_pix_x_dim
0xA003	property_tag_exif_pix_y_dim
0xA004	property_tag_exif_related_wav
0xA005	property_tag_exif_interop
0xA20B	property_tag_exif_flash_energy
0xA20C	property_tag_exif_spatial_fr
0xA20E	property_tag_exif_focal_x_res
0xA20F	property_tag_exif_focal_y_res
0xA210	property_tag_exif_focal_res_unit
0xA214	property_tag_exif_subject_loc
0xA215	property_tag_exif_exposure_index
0xA217	property_tag_exif_sensing_method
0xA300	property_tag_exif_file_Source
0xA301	property_tag_exif_scene_type
0xA302	property_tag_exif_cfa_pattern

id() [2/2]

void xtd::drawing::imaging::property_item::id ( int32  id )

inlinenoexcept

Sets the ID of the property.

Parameters

id	The integer that represents the ID of the property.

Remarks

The following table shows the property tags and their IDs.

ID	Property tag
0x000	property_tag_gps_ver
0x001	property_tag_gps_latitude_ref
0x002	property_tag_gps_latitude
0x003	property_tag_gp_longitude_ref
0x004	property_tag_gps_longitude
0x005	property_tag_gps_altitude_ref
0x006	property_tag_gps_altitude
0x007	property_tag_gps_gps_time
0x008	property_tag_gps_gps_satellites
0x009	property_tag_gps_gps_status
0x00A	property_tag_gps_gps_measure_mode
0x00B	property_tag_gps_gps_dop
0x00C	property_tag_gps_speed_ref
0x00D	property_tag_gps_speed
0x00E	property_tag_gps_track_ref
0x00F	property_tag_gps_track
0x010	property_tag_gps_img_dir_ref
0x011	property_tag_gps_img_dir
0x012	property_tag_gps_map_datum
0x013	property_tag_gps_dest_lat_ref
0x014	property_tag_gps_dest_lat
0x015	property_tag_gps_Dest_long_ref
0x016	property_tag_gps_dest_long
0x017	property_tag_gps_dest_bear _ref
0x018	property_tag_gps_dest_bear
0x019	property_tag_gps_dest_dist_ref
0x01A	property_tag_gps_dest_dist
0x0FE	property_tag_new_subfile_type
0x0FF	property_tag_subfileType
0x100	property_tag_image_width
0x101	property_tag_image_height
0x102	property_tag_bits_per_sample
0x103	property_tag_compression
0x106	property_tag_photometric_interp
0x107	property_tag_thresh_holding
0x108	property_tag_cell_width
0x109	property_tag_Cell_height
0x10A	property_tag_fill_order
0x10D	property_tag_document_name
0x10E	property_tag_image_description
0x10F	property_tag_equip_make
0x110	property_tag_equip_model
0x111	property_tag_strip_offsets
0x112	property_tag_orientation
0x115	property_tag_Samples_per_pixel
0x116	property_tag_rows_per_strip
0x117	property_tag_strip_bytes_count
0x118	property_tag_min_sample_value
0x119	property_tag_max_sample_value
0x11A	property_tag_xresolution
0x11B	property_tag_yresolution
0x11C	property_tag_planar_config
0x11D	property_tag_page_name
0x11E	property_tag_xposition
0x11F	property_tag_yposition
0x120	property_tag_free_offset
0x121	property_tag_free_byte_counts
0x122	property_tag_gray_response_unit
0x123	property_tag_gray_response_curve
0x124	property_tag_t4_option
0x125	property_tag_t6_option
0x128	property_tag_resolution_unit
0x129	property_tag_page_number
0x12D	property_tag_transfer_function
0x131	property_tag_software_used
0x132	property_tag_date_time
0x13B	property_tag_artist
0x13C	property_tag_host_computer
0x13D	property_tag_predictor
0x13E	property_tag_white_point
0x13F	property_tag_primary_chromaticities
0x140	property_tag_color_map
0x141	property_tag_halftone_hints
0x142	property_tag_tile_width
0x143	property_tag_tile_length
0x144	property_tag_tile_offset
0x145	property_tag_tile_byte_counts
0x14C	property_tag_ink_set
0x14D	property_tag_ink_names
0x14E	property_tag_number_of_inks
0x150	property_tag_dot_range
0x151	property_tag_target_printer
0x152	property_tag_extra_samples
0x153	property_tag_sample_format
0x154	property_tag_smin_sample_value
0x155	property_tag_smax_sample_value
0x156	property_tag_transfer_range
0x200	property_tag_jpeg_proc
0x201	property_tag_jpeg_inter_format
0x202	property_tag_jpeg_Inter_length
0x203	property_tag_jpeg_restart_interval
0x205	property_tag_jpeg_lossless_predictors
0x206	property_tag_jpeg_point_transforms
0x207	property_tag_jpeg_qtables
0x208	property_tag_jpeg_dctables
0x209	property_tag_jpeg_actables
0x211	property_tag_ycb_cr_coefficients
0x212	property_tag_ycb_cr_subsampling
0x213	property_tag_ycb_cr_positioning
0x214	property_tag_refblack_white
0x301	property_tag_gamma
0x302	property_tag_iccprofile_descriptor
0x303	property_tag_srgbrendering_intent
0x320	property_tag_image_title
0x5001	property_tag_resolution_xunit
0x5002	property_tag_resolution_yunit
0x5003	property_tag_resolution_xlength_unit
0x5004	property_tag_resolution_ylength_unit
0x5005	property_tag_print_flags
0x5006	property_tag_print_flags_version
0x5007	property_tag_print_flags_crop
0x5008	property_tag_print_flags_bleed_width
0x5009	property_tag_print_flags_bleed_width_scale
0x500A	property_tag_halfton_elpi
0x500B	property_tag_halfton_elpi_unit
0x500C	property_tag_halfton_edegree
0x500D	property_tag_halfton_eshape
0x500E	property_tag_halfton_emisc
0x500F	property_tag_halfton_escreen
0x5010	property_tag_jpeg_quality
0x5011	property_tag_grid_size
0x5012	property_tag_thumbnail_format
0x5013	property_tag_thumbnail_width
0x5014	property_tag_thumbnail_height
0x5015	property_tag_thumbnail_color_depth
0x5016	property_tag_thumbnail_planes
0x5017	property_tag_thumbnail_raw_bytes
0x5018	property_tag_thumbnail_size
0x5019	property_tag_thumbnail_compressed_size
0x501A	property_tag_color_transfer_function
0x501B	property_tag_thumbnail_data
0x5020	property_tag_thumbnail_image_width
0x5021	property_tag_thumbnail_image_height
0x5022	property_tag_thumbnail_bits_per_sample
0x5023	property_tag_thumbnail_compression
0x5024	property_tag_thumbnail_photometric_interp
0x5025	property_tag_thumbnail_image_description
0x5026	property_tag_thumbnail_equip_make
0x5027	property_tag_thumbnail_equip_model
0x5028	property_tag_thumbnail_strip_offsets
0x5029	property_tag_thumbnail_orientation
0x502A	property_tag_thumbnail_samples_per_pixel
0x502B	property_tag_thumbnail_rows_per_strip
0x502C	property_tag_thumbnail_strip_bytes_count
0x502D	property_tag_thumbnail_resolution_x
0x502E	property_tag_thumbnail_resolution_y
0x502F	property_tag_thumbnail_planar_config
0x5030	property_tag_thumbnail_resolution_unit
0x5031	property_tag_thumbnail_transfer_function
0x5032	property_tag_thumbnail_software_used
0x5033	property_tag_thumbnail_date_time
0x5034	property_tag_thumbnail_artist
0x5035	property_tag_thumbnail_white_point
0x5036	property_tag_thumbnail_primary_chromaticities
0x5037	property_tag_thumbnail_ycb_cr_coefficients
0x5038	property_tag_thumbnail_ycb_cr_subsampling
0x5039	property_tag_thumbnail_ycb_cr_positioning
0x503A	property_tag_thumbnail_ref_black_white
0x503B	property_tag_thumbnail_copyRight
0x5090	property_tag_luminance_table
0x5091	property_tag_chrominance_table
0x5100	property_tag_frame_delay
0x5101	property_tag_loop_count
0x5102	property_tag_global_palette
0x5103	property_tag_index_background
0x5104	property_tag_index_transparent
0x5110	property_tag_pixel_unit
0x5111	property_tag_pixel_per_unit_x
0x5112	property_tag_pixel_per_unit_y
0x5113	property_tag_palette_histogram
0x8298	property_tag_copyright
0x829A	property_tag_exif_exposureTime
0x829D	property_tag_exif_fnumber
0x8769	property_tag_exif_ifd
0x8773	property_tag_icc_profile
0x8822	property_tag_exif_exposure_prog
0x8824	property_tag_exif_spectral_sense
0x8825	property_tag_gps_ifd
0x8827	property_tag_exif_iso_speed
0x8828	property_tag_exif_oecf
0x9000	property_tag_exif_ver
0x9003	property_tag_exif_dt_orig
0x9004	property_tag_exif__dt_digitized
0x9101	property_tag_exif_comp_config
0x9102	property_tag_exif_comp_bpp
0x9201	property_tag_exif_shutter_speed
0x9202	property_tag_exif_aperture
0x9203	property_tag_exif_brightness
0x9204	property_tag_exif_exposure_bias
0x9205	property_tag_exif_max_aperture
0x9206	property_tag_exif_subject_dist
0x9207	property_tag_exif_metering_mode
0x9208	property_tag_exif_light_source
0x9209	property_tag_exif_flash
0x920A	property_tag_exif_focal_length
0x927C	property_tag_exif_maker_note
0x9286	property_tag_exif_user_comment
0x9290	property_tag_exif_dt_subsec
0x9291	property_tag_exif_dt_orig_ss
0x9292	property_tag_exif_dt_dig_ss
0xA000	property_tag_exif_fpx_ver
0xA001	property_tag_exif_color_space
0xA002	property_tag_exif_pix_x_dim
0xA003	property_tag_exif_pix_y_dim
0xA004	property_tag_exif_related_wav
0xA005	property_tag_exif_interop
0xA20B	property_tag_exif_flash_energy
0xA20C	property_tag_exif_spatial_fr
0xA20E	property_tag_exif_focal_x_res
0xA20F	property_tag_exif_focal_y_res
0xA210	property_tag_exif_focal_res_unit
0xA214	property_tag_exif_dubject_loc
0xA215	property_tag_exif_exposure_index
0xA217	property_tag_exif_sensing_method
0xA300	property_tag_exif_file_Source
0xA301	property_tag_exif_scene_type
0xA302	property_tag_exif_cfa_pattern

len() [1/2]

int32 xtd::drawing::imaging::property_item::len ( ) const

inlinenoexcept

Gets the length (in bytes) of the value property.

Returns

An integer that represents the length (in bytes) of the value byte array.

len() [2/2]

void xtd::drawing::imaging::property_item::len ( int32  len )

inlinenoexcept

Sets the length (in bytes) of the value property. &param len An integer that represents the length (in bytes) of the value byte array.

type() [1/2]

int16 xtd::drawing::imaging::property_item::type ( ) const

inlinenoexcept

Gets an integer that defines the type of data contained in the value property.

Returns

An integer that defines the type of data contained in value.

Remarks

The following table shows integers and the types they represent.

Integer	Represented Type
1	Specifies that Value is an array of bytes.
2	Specifies that Value is a null-terminated ASCII string. If you set the type data member to ASCII type, you should set the Len property to the length of the string including the null terminator. For example, the string "Hello" would have a length of 6.
3	Specifies that Value is an array of unsigned short (16-bit) integers.
4	Specifies that Value is an array of unsigned long (32-bit) integers.
5	Specifies that Value data member is an array of pairs of unsigned long integers. Each pair represents a fraction; the first integer is the numerator and the second integer is the denominator.
6	Specifies that Value is an array of bytes that can hold values of any data type.
7	Specifies that Value is an array of signed long (32-bit) integers.
10	Specifies that Value is an array of pairs of signed long integers. Each pair represents a fraction; the first integer is the numerator and the second integer is the denominator.

type() [2/2]

void xtd::drawing::imaging::property_item::type ( int16  type )

inlinenoexcept

Sets an integer that defines the type of data contained in the value property.

Parameters

type	An integer that defines the type of data contained in value.

Remarks

The following table shows integers and the types they represent.

Integer	Represented Type
1	Specifies that Value is an array of bytes.
2	Specifies that Value is a null-terminated ASCII string. If you set the type data member to ASCII type, you should set the Len property to the length of the string including the null terminator. For example, the string "Hello" would have a length of 6.
3	Specifies that Value is an array of unsigned short (16-bit) integers.
4	Specifies that Value is an array of unsigned long (32-bit) integers.
5	Specifies that Value data member is an array of pairs of unsigned long integers. Each pair represents a fraction; the first integer is the numerator and the second integer is the denominator.
6	Specifies that Value is an array of bytes that can hold values of any data type.
7	Specifies that Value is an array of signed long (32-bit) integers.
10	Specifies that Value is an array of pairs of signed long integers. Each pair represents a fraction; the first integer is the numerator and the second integer is the denominator.

value() [1/3]

const std::vector< xtd::byte > & xtd::drawing::imaging::property_item::value ( ) const

inlinenoexcept

Gets the value of the property item.

Returns

A byte array that represents the value of the property item.

Remarks

The byte array returned by the Value property contains data in one of several different primitive types. To use the data, determine the data type using the type property and convert the byte array accordingly.

value() [2/3]

std::vector< xtd::byte > & xtd::drawing::imaging::property_item::value ( )

inlinenoexcept

Gets the value of the property item.

Returns

A byte array that represents the value of the property item.

Remarks

The byte array returned by the Value property contains data in one of several different primitive types. To use the data, determine the data type using the type property and convert the byte array accordingly.

value() [3/3]

void xtd::drawing::imaging::property_item::value ( const std::vector< xtd::byte > &  value )

inlinenoexcept

Sets the value of the property item.

Parameters

value

A byte array that represents the value of the property item.

Remarks

The byte array returned by the Value property contains data in one of several different primitive types. To use the data, determine the data type using the type property and convert the byte array accordingly.

equals() [1/2]

virtual bool xtd::object::equals ( const object &  obj ) const

virtualnoexcept

Determines whether the specified object is equal to the current object.

Parameters

obj	The object to compare with the current object.

Returns

true if the specified object is equal to the current object. otherwise, false.

Examples

The following code example compares the current instance with another object.

#include <xtd/console>
 
using namespace xtd;
 
auto main() -> int {
  auto object1 = new_ptr<object>();
  auto object2 = new_ptr<object>();
  
  auto object3 = object2;
  console::write_line(object1->equals(*object3));
  console::write_line(*object1 == *object3);
  object3 = object1;
  console::write_line(object1->equals(*object3));
  console::write_line(*object1 == *object3);
}
 
// This code produces the following output :
//
// false
// false
// true
// true

Reimplemented from xtd::object.

equals() [2/2]

template<typename object_a_t , typename object_b_t >

static bool xtd::object::equals ( const object_a_t &  object_a, const object_b_t &  object_b  )

inlinestaticnoexcept

Determines whether the specified object instances are considered equal.

Parameters

object_a	The first object to compare.
object_b	The second object to compare.

Returns

true if object_a is the same instance as object_b or if both are null references or if object_a(object_b) returns true. otherwise, false.

Examples

The following code example compares different objects.

#include <xtd/console>
 
using namespace xtd;
 
auto main() -> int {
  string s1 = "Tom";
  string s2 = "Carol";
  console::write_line("object::equals(\"{0}\", \"{1}\") => {2}", s1, s2, object::equals(s1, s2));
  
  s1 = "Tom";
  s2 = "Tom";
  console::write_line("object::equals(\"{0}\", \"{1}\") => {2}", s1, s2, object::equals(s1, s2));
  
  s1 = "";
  s2 = "Tom";
  console::write_line("object::equals(\"{0}\", \"{1}\") => {2}", s1, s2, object::equals(s1, s2));
  
  s1 = "Carol";
  s2 = "";
  console::write_line("object::equals(\"{0}\", \"{1}\") => {2}", s1, s2, object::equals(s1, s2));
  
  s1 = "";
  s2 = "";
  console::write_line("object::equals(\"{0}\", \"{1}\") => {2}", s1, s2, object::equals(s1, s2));
}
 
// This code produces the following output :
//
// object::equals("Tom", "Carol") => false
// object::equals("Tom", "Tom") => true
// object::equals("", "Tom") => false
// object::equals("Carol", "") => false
// object::equals("", "") => true

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

• xtd.drawing/include/xtd/drawing/imaging/property_item.h