| 字词 | getfocus |
| 释义 | GetFocus 语法： HWND GetFocus(VOID); Return Value The return value is the handle to the window with the keyboard focus. If the calling thread's message queue does not have an associated window with the keyboard focus, the return value is NULL. Remarks GetFocus returns the window with the keyboard focus for the current thread's message queue. If GetFocus returns NULL, another thread's queue may be attached to a window that has the keyboard focus. Use the GetForegroundWindow function to retrieve the handle to the window with which the user is currently working. You can associate your thread's message queue with the windows owned by another thread by using the AttachThreadInput function. Windows 98/Me and Windows NT 4.0 SP3 and later: To get the window with the keyboard focus on the foreground queue or the queue of another thread, use the GetGUIThreadInfo function. For an example, see "Creating a Combo Box Toolbar" in Using Combo Boxes . Function Information Minimum DLL Versionuser32.dll HeaderDeclared in Winuser.h, include Windows.h Import libraryUser32.lib Minimum operating systemsWindows 95, Windows NT 3.1 See Also Keyboard Input , AttachThreadInput , GetForegroundWindow , GetGUIThreadInfo , SetFocus , WM_KILLFOCUS , WM_SETFOCUS GetFocus函数 该GetFocus函数检索窗口句柄具有键盘焦点，如果窗口连接到调用线程的消息队列。 ＝＝英文原文＝＝GetFocus Function The GetFocus function retrieves the handle to the window that has the keyboard focus, if the window is attached to the calling thread's message queue. Syntax HWND GetFocus(VOID); Return Value The return value is the handle to the window with the keyboard focus. If the calling thread's message queue does not have an associated window with the keyboard focus, the return value is NULL. Remarks GetFocus returns the window with the keyboard focus for the current thread's message queue. If GetFocus returns NULL, another thread's queue may be attached to a window that has the keyboard focus. Use the GetForegroundWindow function to retrieve the handle to the window with which the user is currently working. You can associate your thread's message queue with the windows owned by another thread by using the AttachThreadInput function. Windows 98/Me and Windows NT 4.0 SP3 and later: To get the window with the keyboard focus on the foreground queue or the queue of another thread, use the GetGUIThreadInfo function. For an example, see "Creating a Combo Box Toolbar" in Using Combo Boxes . Function Information Minimum DLL Versionuser32.dll HeaderDeclared in Winuser.h, include Windows.h Import libraryUser32.lib Minimum operating systemsWindows 95, Windows NT 3.1 See Also Keyboard Input , AttachThreadInput , GetForegroundWindow , GetGUIThreadInfo , SetFocus , WM_KILLFOCUS , WM_SETFOCUS ＝＝原始网址＝＝http://msdn.microsoft.com/en-us/library/ms646294(VS.85).aspx\n |
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