void popen_phigs(
const char *err_file /* name of error file */ size_t mem_units /* bytes of available buffer space */
)
Opens GPHIGS, allocating and initializing the PHIGS data structures. The PHIGS and workstation description tables and state lists become accessible using the inquire functions. The PHIGS STATE list entry error file is set to err_file and the system state is set to PHOP.
OPEN PHIGS must be called before any other PHIGS functions are called.
The define PDEF_ERR_FILE can be used as a default value for err_file.
The define PDEF_MEM_SIZE can be used as a default value for mem_units.
In GPHIGS, mem_units is unused.
GPHIGS allows programmers to define a set of parameters, used by GPHIGS, that are not provided into the PHIGS standard (window size, double buffering). See the extension function SET CONFIGURATION FILE NAME for more details on these parameters.
close phigs, inquire system state value, inquire phigs facilities, set configuration file name (ext)