IDirectDraw4::GetMonitorFrequency

The IDirectDraw4::GetMonitorFrequency method retrieves the frequency of the monitor being driven by the DirectDraw object.

HRESULT GetMonitorFrequency(
  LPDWORD lpdwFrequency  
);
 

Parameters

lpdwFrequency

Address of the variable that will be filled with the monitor frequency, reported in Hz.

Return Values

If the method succeeds, the return value is DD_OK.

If the method fails, the return value may be one of the following error values:

QuickInfo

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in ddraw.h.
  Import Library: Use ddraw.lib.