IAVIFile::Open

The Open method initializes a file handler. Called when an application uses the AVIFileOpen function.

HRESULT Open(

Parameters
pf

Address to contain a pointer to the interface to a file.

szFile

Address of a null-terminated string that contains the filename.

mode

Flags for the open operation.

Return Values
Returns the HRESULT defined by OLE.

Remarks
This method is always the first method called, regardless of whether your application is reading or writing a file.

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

HRESULT Open(LPCSTR szFile, UINT mode);