TPNGImage help

PNG Delphi

Network Order


All the values containing more than one byte, as written in Portable Network Graphics specification must use Network Order format, it means that the most significant byte must come first followed by the less significant. ([Byte more significant] [Byte less significant] for 2 bytes values or B3 B2 B1 B0 to 4 bytes values). The more important bit (value 127) from a byte is bit 7 and the less important (value 1) is bit number 0.