IAMCrossbar::get_IsRoutedTo method (strmif.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_IsRoutedTo
method retrieves the input pin that is currently routed to the specified output pin.
Syntax
HRESULT get_IsRoutedTo(
[in] long OutputPinIndex,
[out] long *InputPinIndex
);
Parameters
[in] OutputPinIndex
Specifies the index of the output pin.
[out] InputPinIndex
Pointer to a variable that receives the index of the input pin, or -1 if no input pin is routed to this output pin.
Return value
Returns an HRESULT value. Possible values include the following.
Return code | Description |
---|---|
|
No input pin is routed to this output pin. |
|
Success. |
|
NULL pointer argument. |
Remarks
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 |