IGraphConfigCallback::Reconfigure method (strmif.h)

Article
02/22/2024

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Reconfigure method is a callback method passed to IGraphConfig::Reconfigure.

Syntax

HRESULT Reconfigure(
  PVOID pvContext,
  DWORD dwFlags
);

Parameters

pvContext

Value passed in the IGraphConfig::Reconfigure method's pvContext parameter.

dwFlags

Value passed in the IGraphConfig::Reconfigure method's dwFlags parameter.

Return value

Returns S_OK if successful. Otherwise, returns an HRESULT value indicating the cause of the error.

Remarks

If your application or filter calls IGraphConfig::Reconfigure, you must implement this method and pass it as a callback. The IGraphConfig::Reconfigure method obtains a lock on the filter graph before calling your Reconfigure method. Your method then handles all the other details of dynamic graph building.

If this method succeeds, IGraphConfig::Reconfigure tries to put all the filters in the graph back into a running state. If the method fails, IGraphConfig::Reconfigure returns whatever error code this method returned.

This method allows for specialized graph rebuilding. For a more straightforward approach to dynamic graph building, see IGraphConfig::Reconnect.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib

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