Microsoft Windows CE 3.0  

IDirectDrawSurface5::ChangeUniquenessValue

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The IDirectDrawSurface5::ChangeUniquenessValuemethod 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

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

IDirectDrawSurface5::GetUniquenessValue