IMediaControl::get_FilterCollection method (control.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The get_FilterCollection method retrieves a collection of the filters in the filter graph.

This method is intended for use by Visual Basic 6.0 applications. It was documented for Visual Basic 6.0 as the FilgraphManager.FilterCollection property. C++ applications should use the IFilterGraph::EnumFilters method instead.

Syntax

HRESULT get_FilterCollection(
  [out] IDispatch **ppUnk
);

Parameters

[out] ppUnk

Receives a pointer to the IDispatch interface. The caller must release the interface. You can query the returned pointer for the IAMCollection interface. The collection contains a list of IFilterInfo pointers.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

See also

IMediaControl Interface