libggigcp7

Overview

LibGGIGCP is a generic color and palette management extension. It supports conversion between different color spaces such as RGBA, YUV, HSV and CMYK.

Environment

GCP_DEBUG

The debugging level for LibGGIGCP:

0 or unset

debug output is off; debugging is off

255

all debug output is on

You may also bitwise-or any of the following together:

•

2 : debug core

•

4 : debug mode setting

•

8 : debug color handling

•

16 : debug drawing

•

32 : misc debugging output

•

64 : debug dynamic library handling

•

128 : debug event handling

The debugging output can be quite verbose and in most cases you should redirect stderr so that it does not interfere with your program's output.

GCP_DEBUGSYNC

Turn on synchronous debugging output, flushing the output buffers before returning from DPRINT calls.

GGI_CONFDIR

Override compiled-in path to global config files (Win32 only, but not Cygwin).

Note that the last environment variable really begin with GGI, and not GCP.