Lists all PNG tag identifiers.
Syntax
Members
| Member | Description |
| BACKGROUND | Background information. |
| CALIBRATION | Calibration information. |
| CHRM_BLUE | Chromaticities blue. |
| CHRM_GREEN | Chromaticities green. |
| CHRM_RED | Chromaticities red. |
| CHRM_WHITE | White point. |
| CHRM_X | Chromaticities X. |
| CHRM_Y | Chromaticities Y. |
| CHROMATICITIES | Chromaticities information. |
| COMPRESSED_TEXT | Compressed textual data information. |
| CTXT_COMPR_METHOD | Compression method. |
| CTXT_KEYWORD | Compressed textual data chunk keyword that indicates the type of information represented by the text string. |
| CTXT_TEXT | Compressed textual data chunk text. |
| FORMAT | PNG metadata format identifier. |
| FRACTAL_PARAMETERS | Fractal parameters information. |
| GAMMA | Gamma information. |
| GIF_APP_EXT | GIF application extension information. |
| GIF_CONTROL | GIF contro information. |
| GIF_TEXT_EXT | Gif text extension information. |
| GIFG_DELAY_TIME | Delay time. |
| GIFG_DISPOSAL_METHOD | Disposal method. |
| GIFG_USER_INPUT_FLAG | User Input flag. |
| GIFT_BACK_COLOR | Text background color. |
| GIFT_CELL_HEIGHT | Character cell height. |
| GIFT_CELL_WIDTH | Character cell width. |
| GIFT_FORE_COLOR | Text foreground color. |
| GIFT_GRID_HEIGHT | Text grid height. |
| GIFT_GRID_WIDTH | Text grid width. |
| GIFT_LEFT_POSITION | Text grid left position. |
| GIFT_PLAIN_TEXT | Plain text data. |
| GIFT_TOP_POSITION | Text grid top position. |
| GIFX_APP_DATA | Application data. |
| GIFX_APP_ID | Application identifier. |
| GIFX_AUTHENTICATION | Authentication code. |
| HEADER | Header information. |
| HISTOGRAM | Histogram information. |
| ICC_PROFILE | ICC profile information. |
| ICCP_DATA | Profile data. |
| ICCP_NAME | Profile name. |
| IHDR_BIT_DEPTH | Image bit depth. |
| IHDR_COLOR_TYPE | Color type. |
| IHDR_COMPRESSION | Compression type. |
| IHDR_FILTER_TYPE | Filter type. |
| IHDR_HEIGHT | Image height. |
| IHDR_INTERLACE_TYPE | Interlace type. |
| IHDR_WIDTH | Image width. |
| IMAGE_OFFSET | Image offset. |
| INTERNATIONAL_TEXT | International textual data information. |
| ITXT_COMPR_FLAG | Compression flag. |
| ITXT_COMPR_METHOD | Compression method. |
| ITXT_KEYWORD | International textual data chunk keyword that indicates the type of information represented by the text string. |
| ITXT_LANGUAGE | Language tag. |
| ITXT_TEXT | International textual data chunk text. |
| ITXT_TRANSL_KEYWORD | Translated keyword. |
| OFFS_UNIT | Unit specifier. |
| OFFS_X_POSITION | X position. |
| OFFS_Y_POSITION | Y position. |
| PCAL_EQUATION | Equation type. |
| PCAL_NAME | Calibration name. |
| PCAL_PAR_COUNT | Number of parameters. |
| PCAL_PARAMETER | Calibration parameter. |
| PCAL_UNIT | Unit root. |
| PCAL_UNIT_NAME | Unit name. |
| PCAL_X0 | Original zero(x0). |
| PCAL_X1 | Original Max(x1). |
| PHYS_UNIT | Unit specifier. |
| PHYS_X_AXIS | Intended pixel size or aspect ratio by X axis for display . |
| PHYS_Y_AXIS | Intended pixel size or aspect ratio by Y axis for display. |
| PHYSICAL_SCALE | Physical scale information. |
| RESOLUTION | Resolution information. |
| SCAL_HEIGHT | Pixel height. |
| SCAL_UNIT | Unit specifier. |
| SCAL_WIDTH | Pixel width. |
| SIGNIFICANT_BITS | Significant bits information. |
| SPLT_ALPHA | Suggested palette alpha entry value. |
| SPLT_BLUE | Suggested palette blue entry value. |
| SPLT_DEPTH | Sample depth. |
| SPLT_ENTRY | Suggested palette entry. |
| SPLT_ENTRY_COUNT | Suggested palette entry count. |
| SPLT_FREQUENCY | Suggested palette frequency entry value. |
| SPLT_GREEN | Suggested palette green entry value. |
| SPLT_NAME | Palette name. |
| SPLT_RED | Suggested palette red entry value. |
| SRGB | Standard RGB information. |
| SUGGESTED_PALETTE | Suggested palette information. |
| TEXT | Text data information. |
| TEXT_KEYWORD | Textual data chunk keyword that indicates the type of information represented by the text string. |
| TEXT_TEXT | Textual data chunk text. |
| TIME | Time image last modification information. |
| TIME_DAY | Image last-modification time day value. |
| TIME_HOUR | Image last-modification time hour value. |
| TIME_MINUTE | Image last-modification time minute value. |
| TIME_MONTH | Image last-modification time month value. |
| TIME_SECOND | Image last-modification time second value. |
| TIME_YEAR | Image last-modification time year value. |
| TRANSPARENCY | Transparency information. |
| XMP |
XML packet containing XMP metadata.
|
Inheritance Hierarchy
See Also