DirectDrawCreateClipper

The DirectDrawCreateClipper function creates an instance of a DirectDrawClipper object not associated with a DirectDraw object.

HRESULT WINAPI DirectDrawCreateClipper(
  DWORD dwFlags,                           
  LPDIRECTDRAWCLIPPER FAR *lplpDDClipper,  
  IUnknown FAR *pUnkOuter                  
);

Parameters

dwFlags

Currently not used and must be set to 0.

lplpDDClipper

Address of a pointer to be filled with the address of the new DirectDrawClipper object.

pUnkOuter

Allows for future compatibility with COM aggregation features. Presently, however, this method returns an error if this parameter is anything but NULL.

Return Values

If the function succeeds, the return value is DD_OK.

If it fails, the function can return one of the following error values:

Remarks

This function can be called before any DirectDraw objects are created. Because these DirectDrawClipper objects are not owned by any DirectDraw object, they are not automatically released when an application's objects are released. If the application does not explicitly release the DirectDrawClipper objects, DirectDraw releases them when the application terminates.

To create a DirectDrawClipper object owned by a specific DirectDraw object, use the IDirectDraw7::CreateClipper method.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  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.

See Also

IDirectDraw7::CreateClipper