WdfCommonBufferGetLength - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// wdfcommonbuffer.h

size_t WdfCommonBufferGetLength(
  [in] WDFCOMMONBUFFER CommonBuffer
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-wdfcommonbuffer-wdfcommonbuffergetlength)

WdfCommonBufferGetLength function

Description

[Applies to KMDF only]

The WdfCommonBufferGetLength method returns the length of a specified common buffer.

Parameters

CommonBuffer [in]

A handle to a common buffer object that the driver obtained by a previous call to WdfCommonBufferCreate.

Return value

WdfCommonBufferGetLength returns the length, in bytes, of the buffer that is associated with the common buffer that the CommonBuffer parameter specifies.

A bug check occurs if the driver supplies an invalid object handle.

Remarks

For more information about common buffers, see Using Common Buffers

Examples

The following code example obtains the length of a specified common buffer.

size_t bufferLength;

bufferLength = WdfCommonBufferGetLength(DevExt->CommonBuffer);

See also

WdfCommonBufferCreate

View the official Windows Driver Kit DDI reference

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