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| Microsoft DirectShow 9.0 |
IPin::QueryDirection
The QueryDirection method retrieves the direction of the pin (input or output).
Syntax
HRESULT QueryDirection( PIN_DIRECTION *pPinDir );
Parameters
pPinDir
[out] Pointer to a variable that receives a member of the PIN_DIRECTION enumerated type.
Return Value
Returns an HRESULT value. Possible values include the following.
| Value | Description |
| S_OK | Success. |
| E_POINTER | Null pointer argument. |
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also