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The DirectDrawCreateClipperfunction 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
- This parameter is currently not used and must be set to zero.
- lplpDDClipper
- Address of a pointer that will be filled with the address of the new DirectDrawClipper object.
- pUnkOuter
- Allows for future compatibility with COM aggregation features.
Presently, this method will return CLASS_E_NOAGGREGATION if this
parameter is anything but NULL.
Return Values
If the function succeeds, the return value is DD_OK.
If the function fails, the return value may be one of the following error values:
DDERR_INVALIDPARAMS DDERR_OUTOFMEMORY CLASS_E_NOAGGREGATION 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 will release them when the application terminates.
To create a DirectDrawClipper object owned by a specific DirectDraw object, use the IDirectDraw4::CreateClippermethod.
Requirements
Runs on Versions Declared in Link to Windows CE OS 2.12 or later. Version 2.12 requires DXPAK 1.0 or later. ddraw.h ddraw.lib See Also