The WdfCommonBufferGetLength method returns the length of a specified common buffer.
size_t WdfCommonBufferGetLength( [in] WDFCOMMONBUFFER CommonBuffer );
- CommonBuffer [in]
A handle to a common buffer object that the driver obtained by a previous call to WdfCommonBufferCreate.
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.
For more information about common buffers, see Using Common Buffers
The following code example obtains the length of a specified common buffer.
size_t bufferLength; bufferLength = WdfCommonBufferGetLength(DevExt->CommonBuffer);
|Available in version 1.0 and later versions of KMDF.|
|Wdf<MajorVersionNumber>000.sys (see Framework Library Versions.)|