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IDirectDrawSurface5::Unlock (Windows CE 5.0)

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This method notifies DirectDraw that the direct surface manipulations are complete.

HRESULT Unlock(LPRECT lpRect);

Parameters

  • lpRect
    Address of the RECT structure that was used to lock the surface in the corresponding call to the IDirectDrawSurface5::Lock method. This parameter can be NULL only if the entire surface was locked by passing NULL in the lpDestRect parameter of the corresponding call to the IDirectDrawSurface5::Lock method.

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_GENERIC
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS
DDERR_INVALIDRECT
DDERR_NOTLOCKED
DDERR_SURFACELOST

Remarks

Because it is possible to call IDirectDrawSurface5::Lock multiple times for the same surface with different destination rectangles, the pointer in lpRect links the calls to the IDirectDrawSurface5::Lock and IDirectDrawSurface5::Unlock methods.

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::Lock

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