Command
QisLib_SetReferenceMarker

QisLib_SetReferenceMarker

Function:
	int QisLib_SetReferenceMarker(int OnOff);

Inputs:
	On/Off: _QIS_ON (On) or _QIS_OFF (Off)

Return:
	0 (always)

Errors: -

Description:
	- Turns the display of cell and text reference markers ON/OFF.
	- The kind of marker that is displayed at the insertion point of the cell or text can
	be set by QisLib_SetMarkerShape.