IConnector::GetDataFlow method (devicetopology.h)
The GetDataFlow method gets the direction of data flow through this connector.
Syntax
HRESULT GetDataFlow(
[out] DataFlow *pFlow
);
Parameters
[out] pFlow
Pointer to a variable into which the method writes the data-flow direction. The direction is one of the following DataFlow enumeration values:
In
Out
If data flows into the device through the connector, the data-flow direction is In. Otherwise, the data-flow direction is Out.
Return value
If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.
| Return code | Description |
|---|---|
|
Pointer pFlow is NULL. |
Remarks
For a code example that calls this method, see the implementation of the SelectCaptureDevice function in Device Topologies.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | devicetopology.h |