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This function returns pointers to the buffer descriptor and base virtual address for the initial buffer chained to a specified packet descriptor, along with the sizes of the initial buffer and total buffer in case the buffer is fragmented.
VOID NdisGetFirstBufferFromPacket( IN PNDIS_PACKET _Packet , OUT PNDIS_BUFFER * _ FirstBuffer , OUT PVOID * _ FirstBufferVA , OUT PUINT FirstBufferLength , OUT PUINT_ TotalBufferLength );
Drivers use this function to get information about the initial buffer and the amount of data associated with a specified packet faster than they can by calling the NdisQueryPacketfunction, and then the NdisQueryBufferfunction.
A driver that calls this function runs at IRQL <= DISPATCH_LEVEL.
|Runs on||Versions||Defined in||Include||Link to|
|Windows CE OS||2.0 and later||Ndis.h|
Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
Last updated on Tuesday, July 13, 2004