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 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.