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This 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 the method fails, the return value may be one of the following error values:
| DDERR_EXCEPTION |
| DDERR_INVALIDOBJECT |
| DDERR_INVALIDPARAMS |
Remarks
DirectDraw automatically updates uniqueness values whenever the contents of a surface change.
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Ddraw.h.
Link Library: Ddraw.lib.
See Also
IDirectDrawSurface5::GetUniquenessValue
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