GGI extension for color and palette

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:

  • 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 GCPDPRINT 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.

See Also