IAMCrossbar::CanRoute 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CanRoute method queries whether a specified input pin can be routed to a specified output pin.

Syntax

HRESULT CanRoute(
  [in] long OutputPinIndex,
  [in] long InputPinIndex
);

Parameters

[in] OutputPinIndex

Specifies the index of the output pin.

[in] InputPinIndex

Specifies the index of input pin.

Return value

Returns an HRESULT values. Possible values include the following.

Return code	Description
S_OK	These two pins can be routed.
S_FALSE	These two pins cannot be routed.

Remarks

To route the pins, call the IAMCrossbar::Route method. Output pins and input pins are both indexed from zero. To determine the number of output and input pins, call the IAMCrossbar::get_PinCounts method.

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