3.1.5.26.12 Dx9Device_BeginVideoSurfaceAllocation
The Dx9Device_BeginVideoSurfaceAllocation message frees video memory for an external component to allocate local video memory. The caller is responsible for sending a Dx9Device_EndVideoSurfaceAllocation message when finished. During this time, the device can be unavailable for rendering.
The fields of the Dx9Device_BeginVideoSurfaceAllocation are specified in section 2.2.4.25.12.
The common header fields are specified in section 2.2.4.