Description:

This function is used to set or query information about the system's current default resolution.

#include <os2.h>

PSCREENRESOLUTION    pScreenResolution;
PULONG               pcbScreenResolution;
ULONG                flOptions;
ULONG                fSuccess;             /*  Return codes. */

fSuccess = DspDefaultResolution(pScreenResolution,
             pcbScreenResolution, flOptions);