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IAVIFile::ReadData
The ReadData method reads file headers. Called when an application uses the AVIFileReadData function.
HRESULT ReadData (
PAVISTREAM ps,
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| DWORD fcc,
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| LPVOID lpBuffer,
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| LONG *lpcbBuffer
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| );
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Parameters
ps
Address of the interface to a file.
fcc
Four-character code of the header to read.
lpBuffer
Address of the buffer for the 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);
See Also
AVIFileReadData
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