![]() ![]() ![]() Otherwise, DirectDraw or Direct3D returns the error code provided by the driver and aborts the function. If this code is DD_OK, DirectDraw or Direct3D proceeds with the function. The driver has performed the operation and returned a valid return code for that operation. NtGdiDdUnlockD3D returns one of the following callback codes. Pointer to a DD_UNLOCKDATA structure that contains the information required to perform the lock release. Pointer to a DD_SURFACE_LOCAL structure that describes the surface to be unlocked. Used to release a lock held on a specified area of buffer memory.
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