◄CWnd► ◄Up► ◄Contents► ◄Index► ◄Back► ──Microsoft Foundation Classes────────────────────────────────────────────── int GetDlgCtrlID() const; Remarks Returns the the CWnd ID value if CWnd is a child window. Since top-level windows do not have an ID value, the return value of this function is invalid if the CWnd is a top-level window. Return Value The numeric identifier of the CWnd child window if the function is successful. If the function fails, the return value is NULL. See Also ◄::GetDlgCtrlID► -♦-