Function: GDI_OPEN Purpose: Opens a display. Category: DISPLAY File: gdilib.c Author: K.G. Begeman Use: INTEGER GDI_OPEN( DISPLAY ) Input CHARACTER*(*) GDI_OPEN Returns on success a non-negative display identifier for further use. Negative values indicate an error condition. DISPLAY Name of display device. If DISPLAY is empty, the default display (DEFAULT_DISPLAY) will be used. Updates: Nov 2, 1990: KGB Document created. Aug 5, 1999: JPT Assume modest X server when device is unknown.