[−][src]Module png::chunk 
Chunk types and functions
Constants
| IDAT | Image data  | 
| IEND | Image trailer  | 
| IHDR | Image header  | 
| PLTE | Palette  | 
| acTL | Animation control  | 
| bKGD | Background colour  | 
| fcTL | Frame control  | 
| fdAT | Frame data  | 
| pHYs | Physical pixel dimensions  | 
| tIME | Image last-modification time  | 
| tRNS | Transparency  | 
Functions
| is_critical | Returns true if the chunk is critical.  | 
| is_private | Returns true if the chunk is private.  | 
| reserved_set | Checks whether the reserved bit of the chunk name is set. If it is set the chunk name is invalid.  | 
| safe_to_copy | Returns true if the chunk is safe to copy if unknown.  | 
Type Definitions
| ChunkType |