IAMCrossbar::CanRoute 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 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 |
|---|---|
|
These two pins can be routed. |
|
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 |