IPin::QueryPinInfo
A version of this page is also available for
4/8/2010
This method retrieves information about the pin.
Syntax
HRESULT QueryPinInfo(
PIN_INFO* pInfo
);
Parameters
- pInfo
[out] Pointer to a PIN_INFO structure that specifies the name of the pin, a pointer to an IBaseFilter interface on its owning filter, and the direction of the pin.
Return Value
Returns an HRESULT value that depends on the implementation.
HRESULT can be one of the following standard constants, or other values not listed.
| Value | Description |
|---|---|
E_FAIL |
Failure. |
E_POINTER |
Null pointer argument. |
E_INVALIDARG |
Invalid argument. |
E_NOTIMPL |
Method is not supported. |
S_OK or NOERROR |
Success. |
Remarks
Unlike the pin name in the IPin::QueryId method, which is used by the filter graph manager, the name in the PIN_INFO structure is intended to be read by users.
On return, the pFilter member of PIN_INFO has an outstanding reference count if it is non-NULL, and therefore should be released when the interface is no longer needed.
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |