Section: GGI (7)
: A flexible library for input handling
LibGII is an input library developed by the GGI Project. Its
design philosophy is similar to LibGGI, which deals with graphics
LibGII is based on the concept of input streams, which virtualize
access to the underlying input drivers. Events from various input
devices are abstracted into easy-to-use structures. LibGII also allows
the application to join streams together, receiving input from an
arbitrary combination of devices.
LibGII is a separate component from LibGGI, although LibGGI depends on
LibGII for input purposes. (LibGGI's input functions are simply
wrappers for LibGII functions.)
The following outlines the environment variables, intended for the
user, which affect the behaviour of LibGII:
The default input source(s) and/or filter(s) to use when giiOpen()
is called with a NULL argument. The format is: input:inputargs.
Multiple inputs can be specified by this notation: (i1):(i2) ....
This setting does not affect LibGGI visuals automatically
opening inputs. Use the GGI_INPUTx variable instead.
The debug level for LibGII:
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
32 : misc debugging output
64 : debug dynamic library handling
128 : debug event handling
Turn on synchronous debug output, flushing the output buffers
before returning from DPRINT calls.
Override compiled-in path to global config files (Win32 only,
but not Cygwin).
Other environment variables specific to filters and inputs are
documented in the corresponding manual page.