|Microsoft DirectX 9.0|
This topic applies to Windows XP only.
The get_Category method retrieves the category of the device as a BSTR.
HRESULT get_Category( BSTR* pGuid );
[out] BSTR that receives the device category.
Returns an HRESULT value. Possible values include the following.
|E_POINTER||NULL pointer argument.|
The device category is identified by a GUID. This method returns a string representation of the GUID.
This method is provided for Automation clients. C++ applications can use the IMSVidDevice::get__Category method, which returns a GUID rather than a BSTR.
The caller must free the returned string, using the SysFreeString function.