Lists all XWD tag identifiers.
| IGMDTAG_ID_XWD_FORMAT | XWD metadata format identifier. |
| IGMDTAG_ID_XWD_HEADER_SIZE | Header size. R/O. |
| IGMDTAG_ID_XWD_FILE_VERSION | File version. R/O. |
| IGMDTAG_ID_XWD_PIXMAP_FORMAT | Pixmap format. R/O. |
| IGMDTAG_ID_XWD_PIXMAP_DEPTH | Pixmap depth. R/O. |
| IGMDTAG_ID_XWD_PIXMAP_WIDTH | Pixmap width. R/O. |
| IGMDTAG_ID_XWD_PIXMAP_HEIGHT | Pixmap height. R/O. |
| IGMDTAG_ID_XWD_X_OFFSET | Bitmap x offset. R/W. |
| IGMDTAG_ID_XWD_BYTE_ORDER | Byte order. R/O. |
| IGMDTAG_ID_XWD_BITMAP_UNIT | Bitmap unit. R/O. |
| IGMDTAG_ID_XWD_BITMAP_BIT_ORDER | Bitmap bit order (MSBFirst, LSBFirst). R/O. |
| IGMDTAG_ID_XWD_BITMAP_PAD | Bitmap scanline pad. R/O. |
| IGMDTAG_ID_XWD_BITS_PER_PIXEL | Bits per pixel. R/O. |
| IGMDTAG_ID_XWD_BYTES_PER_LINE | Bytes per scanline. R/O. |
| IGMDTAG_ID_XWD_VISUAL_CLASS | Class of colormap. R/O. |
| IGMDTAG_ID_XWD_RED_MASK | Red mask. R/O. |
| IGMDTAG_ID_XWD_GREEN_MASK | Green mask. R/O. |
| IGMDTAG_ID_XWD_BLUE_MASK | Blue mask. R/O. |
| IGMDTAG_ID_XWD_BITS_PER_RGB | Log2 of distinct color values. R/O. |
| IGMDTAG_ID_XWD_NUMBER_OF_COLORS | Colors number. R/O. |
| IGMDTAG_ID_XWD_COLOR_MAP_ENTRIES | Color map entries. R/O. |
| IGMDTAG_ID_XWD_WINDOW_WIDTH | Window width. R/W. |
| IGMDTAG_ID_XWD_WINDOW_HEIGHT | Window height. R/W. |
| IGMDTAG_ID_XWD_WINDOW_X | Window upper left X coordinate. R/W. |
| IGMDTAG_ID_XWD_WINDOW_Y | Window upper left Y coordinate. R/W. |
| IGMDTAG_ID_XWD_WINDOW_BORDER_WIDTH | Window border width. R/W. |