VideoPortAllocateBuffer - NtDoc
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headers
// video.h
VIDEOPORT_DEPRECATED VIDEOPORT_API VP_STATUS VideoPortAllocateBuffer(
[in] IN PVOID HwDeviceExtension,
[in] IN ULONG Size,
[out] OUT PVOID *Buffer
);
View the official Windows Driver Kit DDI referenceNo description available.
The VideoPortAllocateBuffer function is obsolete in Windows 2000 and later. In its place, video miniport drivers should instead use VideoPortAllocatePool.
VideoPortAllocateBuffer allocates a buffer of paged pool memory.
HwDeviceExtension [in]Pointer to the miniport driver's device extension.
Size [in]Specifies the size of the buffer to allocate, in bytes.
Buffer [out]Is the location in which the video port driver returns a pointer to a pointer to the allocated pool memory.
VideoPortAllocateBuffer returns NO_ERROR when it successfully completes the allocation request, or ERROR_NOT_ENOUGH_MEMORY if it is unable to allocate a buffer of Size bytes. A return value of ERROR_INSUFFICIENT_BUFFER indicates that a miniport driver has exceeded its maximum allowable allocation of memory.
A miniport driver can use the return value of this function to determine whether the buffer allocation succeeded.