NAME
	GetDisplayInfoData -- query  DisplayInfo Record parameters (V36)

   SYNOPSIS
	result = GetDisplayInfoData(handle, buf, size, tagID, [ID])
	D0                          A0      A1   D0    D1     [D2]

	 ULONG GetDisplayInfoData( DisplayInfoHandle,  UBYTE *,  ULONG,  ULONG,  ULONG);

   FUNCTION
	GetDisplayInfoData() fills a buffer with data meaningful to the
	DisplayInfoRecord pointed at by your valid handle. The data type
	that you are interested in is indicated by a tagID for that chunk.
	The types of tagged information that may be available include:

	DTAG_DISP: ( DisplayInfo)   - properties and availability information.
	DTAG_DIMS: ( DimensionInfo) - default dimensions and overscan info.
	DTAG_MNTR: ( MonitorInfo)   - type, position, scanrate, and compatibility
	DTAG_NAME: ( NameInfo)      - a user friendly way to refer to this mode.

   INPUTS
	handle - displayinfo handle
	buf    - pointer to destination buffer
	size   - buffer size in bytes
	tagID  - data chunk type
	ID     - displayinfo identifier, optionally used if handle is NULL

   RESULT
	result - if positive, number of bytes actually transferred
	         if zero, no information for ID was available

   BUGS

   SEE ALSO
	 FindDisplayInfo(),  NextDisplayInfo()
	 sc:include/graphics/displayinfo.h