|Microsoft DirectX 9.0|
The ReleaseFocus method sets the focus object to NULL in the resource manager if the current focus object is the one specified in this method.
HRESULT ReleaseFocus( IUnknown *pFocusObject );
[in] Pointer to the focus object.
Returns an HRESULT value that depends on the implementation. HRESULT can be one of the following standard constants, or other values not listed.
|E_POINTER||Null pointer argument.|
|E_NOTIMPL||Method isn't supported.|
|S_OK or NOERROR||Success.|
Use this method when the object of focus is about to be destroyed to ensure that the focus is not still being referenced.