IAMCrossbar::get_PinCounts 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_PinCounts
method retrieves the number of input and output pins on the crossbar filter.
Syntax
HRESULT get_PinCounts(
[out] long *OutputPinCount,
[out] long *InputPinCount
);
Parameters
[out] OutputPinCount
Pointer to variable that receives the number of output pins.
[out] InputPinCount
Pointer to variable that receives the number of input pins.
Return value
Returns an HRESULT value. Possible values include the following.
Return code | Description |
---|---|
|
Success. |
|
NULL pointer argument. |
Remarks
The other IAMCrossbar methods take parameters that specify pins by index number. For these methods, output pins and input pins are both indexed from zero. Use the get_PinCounts
method to determine the upper bounds for each.
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 |