NAME
       OpenMonitor -- open a named MonitorSpec (V36)

   SYNOPSIS
       mspc = OpenMonitor( monitor_name , display_id)
       d0                  a1		   d0

       struct MonitorSpec *OpenMonitor( char *, ULONG );

   FUNCTION
       Locate and open a named MonitorSpec.

   INPUTS
       monitor_name - a pointer to a null terminated string.
       display_id - an optional 32 bit monitor/mode identifier

   RESULTS
       mspc - a pointer to an open MonitorSpec structure.
              NULL if MonitorSpec could not  be opened.

   NOTE
	if monitor_name is non-NULL, the monitor will be opened by name.
	if monitor_name is NULL the monitor will be opened by optional ID.
	if both monitor_name and display_id are NULL returns default monitor.

   BUGS

   SEE ALSO
       CloseMonitor() graphics/monitor.h