IAVIFile::Open method

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

Syntax

HRESULT Open(
   PAVISTREAM pf,
   LPCSTR     szFile,
   UINT       mode
);

Parameters

• pf
  Pointer to a buffer that receives a pointer to the interface to a file.

• szFile
  Pointer to a null-terminated string that contains the filename.

• mode
  Flags for the open operation.

Return value

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); 
 

Requirements

See also

Custom File and Stream Handlers

Custom File and Stream Handler Interfaces