libggigcp(7)
NAME
libggigcp - GGI extension for color and palette
DESCRIPTION
LibGGIGCP is a generic color and palette management extension. It supports conversion between different color spaces such as RGBA, YUV, HSV
and CMYK.
ENVIRONMENT VARIABLES
- 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:
- o 2 : debug core
- o 4 : debug mode setting
- o 8 : debug color handling
- o 16 : debug drawing
- o 32 : misc debugging output
- o 64 : debug dynamic library handling
- o 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.