IAVIFile::ReadData method (vfw.h)

The ReadData method reads file headers. Called when an application uses the AVIFileReadData function.

Syntax

HRESULT ReadData(
  DWORD  ckid,
  LPVOID lpData,
  LONG   *lpcbData
);

ckid

A chunk identifier.

lpData

A pointer specifying the memory into which the data is read.

lpcbData

A pointer to a LONG specifying the number of bytes read.

Returns the HRESULT defined by OLE.

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


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

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	vfw.h
Library	Vfw32.lib