VOID VideoPortZeroDeviceMemory(
| PVOID Destination, | |
| ULONG Length | |
| ); |
VideoPortZeroDeviceMemory fills an adapter frame buffer or other device memory with zeros.
Parameters
Destination
Specifies the base address of the adapter memory area. This value must be a mapped logical address returned by VideoPortGetDeviceBase.
Length
Specifies the size, in bytes, to be filled.
Comments
Miniport drivers should always call this function, rather than VideoPortZeroMemory, to fill on-adapter memory with zeros.
A miniport’s HwVidInterrupt or HwVidSynchronizeExecutionCallback function can call VideoPortZeroDeviceMemory.
See Also
HwVidInterrupt, HwVidSynchronizeExecutionCallback, VideoPortGetDeviceBase, VideoPortZeroMemory