IAVIStream::ReadData

	Overview

	Group

	Quick Info

The ReadData method reads data headers of a stream. Called when an application uses the AVIStreamReadData function.

HRESULT ReadData(

PAVISTREAM ps,
DWORD fcc,
LPVOID lpBuffer,
LONG *lpcbBuffer
);

Parameters
ps

Address of the interface to a stream.

fcc

Four-character code of the stream header to read.

lpBuffer

Address of the buffer to contain the header data.

lpcbBuffer

Size, in bytes, of the buffer specified by lpBuffer. When this method returns control to the application, the contents of this parameter specifies the amount of data read.

Return Values
Returns the HRESULT defined by OLE.

Remarks
For handlers written in C++, ReadData has the following syntax:

HRESULT ReadData(DWORD fcc, LPVOID lp, LONG *lpcb);