IFilterGraph::Reconnect 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Reconnect method disconnects a pin and then reconnects it to the same pin.

Applications should not call this method. It is called by filters during the graph building process.

Syntax

HRESULT Reconnect(
  [in] IPin *ppin
);

Parameters

[in] ppin

Pointer to IPin interface of the pin to reconnect.

Return value

Returns one of the following values.

Return code	Description
S_OK	Success.
E_FAIL	Failure.
E_POINTER	NULL pointer argument.
VFW_E_NOT_CONNECTED	Pin is not connected.
VFW_E_WRONG_STATE	Filter is not stopped.

Remarks

This method is obsolete; use the IFilterGraph2::ReconnectEx method instead.

Filters can call this method in order to renegotiate a pin connection. The method executes on a separate thread. Before calling this method, call IPin::QueryAccept on the other pin to ensure that the reconnection attempt will succeed. Do not call this method unless QueryAccept returns S_OK. Otherwise, because the reconnection is performed asynchronously, the reconnection might fail even though the Reconnect method succeeds, leaving the filter graph in an inconsistent state.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib