ITfThreadMgr::AssociateFocus method (msctf.h)

Associates the focus for a window with a document manager object.


HRESULT AssociateFocus(
  [in]  HWND           hwnd,
  [in]  ITfDocumentMgr *pdimNew,
  [out] ITfDocumentMgr **ppdimPrev


[in] hwnd

Handle of the window to associate the focus with.

[in] pdimNew

Pointer to the document manager to associate the focus with. The TSF manager does not increment the object reference count. This value can be NULL.

[out] ppdimPrev

Receives the document manager previously associated with the window. Receives NULL if there is no previous association. This parameter cannot be NULL.

Return value

This method can return one of these values.

Value Description
The method was successful.
One or more parameters are invalid.


This method is provided as a convenience to the application developer. Associating the focus for a window with a document manager causes the TSF manager to automatically call ITfThreadMgr::SetFocus with the associated document manager when the associated window receives the focus.

This method can only associate a single window with a single document manager. If the implementation associates multiple document managers with a single window, or the opposite, the implementation must call ITfThreadMgr::SetFocus to set the focus to the proper document manager.

To restore the previous focus association, call this method with the same window handle and the value returned in the original call ppdimPrev for pdimNew. The following is an example.

//associate the focus for m_hwnd with m_pDocMgr 
pThreadMgr->AssociateFocus(m_hwnd, m_pDocMgr, &m_pPrevDocMgr);

//Restore the original focus association. 
ITfDocumentMgr *pTempDocMgr = NULL;

pThreadMgr->AssociateFocus(m_hwnd, m_pPrevDocMgr, &pTempDocMgr);



Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header msctf.h
DLL Msctf.dll
Redistributable TSF 1.0 on Windows 2000 Professional

See also