CTransformOutputPin.CheckConnect method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CheckConnect method determines whether a pin connection is suitable.
Syntax
HRESULT CheckConnect(
IPin *pPin
);
Parameters
-
pPin
-
Pointer to the output pin's IPin interface.
Return value
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
|---|---|
|
Success. |
|
The filter's input pin is not connected. |
Remarks
This method overrides the CBaseOutputPin::CheckConnect method. It calls the filter's CTransformFilter::CheckConnect method, which returns S_OK in the base class. The derived class can override the CTransformFilter::CheckConnect method to perform additional checks.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|