IDirectDrawSurface7::ChangeUniquenessValue

The IDirectDrawSurface7::ChangeUniquenessValue method manually updates the uniqueness value for this surface.

HRESULT ChangeUniquenessValue(); 

Parameters

None.

Return Values

If the method succeeds, the return value is DD_OK.

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

Remarks

DirectDraw automatically updates uniqueness values whenever the contents of a surface change.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 98.
  Header: Declared in ddraw.h.

See Also

IDirectDrawSurface7::GetUniquenessValue, Surface Uniqueness Values