| ImageGear Professional v18.2 > User Guide > Appendices/General Reference > Non-Image Data Storage > Non-Image Data Structure > GIF Non-image Data Structure > GIF Image Descriptor Level |
| Name | Id | Type | Value Type | Value | Value Length | Read Only |
|---|---|---|---|---|---|---|
| "ImageDescriptor" | 0x2C | LEVEL_START | 0 | NULL | 0 | True |
| "ImageLeftPosi tion" | 0x2C1 | VALUE_ITEM | UINT16 | 1 | False | |
| "ImageTopPosition" | 0x2C2 | VALUE_ITEM | UINT16 | 1 | False | |
| "ImageWidth" | 0x2C3 | VALUE_ITEM | 1 | False | ||
| "ImageHeight" | 0x2C4 | VALUE_ITEM | 1 | False | ||
| "Fields" | 0x2C5 | LEVEL_START | 0 | NULL | 0 | True |
| "LocalColorTableFlag" | 0x2C6 | VALUE_ITEM | BOOL | 1 | False | |
| "InterlaceFlag" | 0x2C7 | VALUE_ITEM | BOOL | 1 | False | |
| "SortFlag" | 0x2C8 | VALUE_ITEM | BOOL | 1 | False | |
| "LocalColorTableSize" | 0x2C9 | VALUE_ITEM | UINT8 | 1 | False | |
| "Fields" | 0x2C5 | LEVEL_END | 0 | NULL | 0 | True |
| "ImageDescriptor" | 0x2C | LEVEL_END | 0 | NULL | 0 | True |