IMFSample::CopyToBuffer method (mfobjects.h)

Copies the sample data to a buffer. This method concatenates the valid data from all of the buffers of the sample, in order.


HRESULT CopyToBuffer(
  [in] IMFMediaBuffer *pBuffer


[in] pBuffer

Pointer to the IMFMediaBuffer interface of the destination buffer. The buffer must be large enough to hold the valid data in the sample. To get the size of the data in the sample, call IMFSample::GetTotalLength.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
The method succeeded.
NULL pointer argument.
The buffer is not large enough to contain the data.


This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:

  • Windows XP with Service Pack 2 (SP2) and later.
  • Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (October 2006 Update Rollup for Windows XP Media Center Edition) installed.


Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header mfobjects.h (include Mfidl.h)
Library Mfuuid.lib

See also


Media Samples