今天在網路上看到一個Winform使用Hot-Key的寫法,感覺蠻簡單的,這邊分享給大家:
今天在網路上看到一個Winform使用Hot-Key的寫法,感覺蠻簡單的,這邊分享給大家:
先增加一個HotKey的Class,這個Hot-Key的做法是透過OS的user32.dll來完成,
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class HotKey
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{
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[DllImport("user32.dll", SetLastError = true)]
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public static extern bool RegisterHotKey(
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IntPtr hWnd,
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int id,
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KeyModifiers fsModifiers,
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Keys vk
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);
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[DllImport("user32.dll", SetLastError = true)]
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public static extern bool UnregisterHotKey(
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IntPtr hWnd,
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int id
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);
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[Flags()]
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public enum KeyModifiers
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{
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None = 0,
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Alt = 1,
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Ctrl = 2,
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Shift = 4,
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WindowsKey = 8
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}
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}
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/ExpandedSubBlockEnd.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/ExpandedBlockEnd.gif)
然後在Form的Activated事件中註冊所要使用的HotKey,如下方範例,我總共註冊了幾個常用的Hot-Key組合:
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//設定hot key
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private void Form1_Activated(object sender, EventArgs e)
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{
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//HotKey.RegisterHotKey(Handle, 100, HotKey.KeyModifiers.Shift, Keys.S);
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//Ctrl-S存檔
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HotKey.RegisterHotKey(Handle, 101, HotKey.KeyModifiers.Ctrl, Keys.S);
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//Esc放棄這筆修改
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HotKey.RegisterHotKey(Handle, 102, HotKey.KeyModifiers.None, Keys.Escape);
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//Ctrl-E編輯這筆
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HotKey.RegisterHotKey(Handle, 103, HotKey.KeyModifiers.Ctrl, Keys.E);
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//Ctrl-A新增
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HotKey.RegisterHotKey(Handle, 104, HotKey.KeyModifiers.Ctrl, Keys.A);
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//Ctrl-D刪除這筆
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HotKey.RegisterHotKey(Handle, 105, HotKey.KeyModifiers.Ctrl, Keys.D);
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}
![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/None.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/None.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/InBlock.gif)
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/ExpandedBlockEnd.gif)
然後透過複寫WinProc來完成Hot-Key所要執行的工作:
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protected override void WndProc(ref Message m)
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{
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const int WM_HOTKEY = 0x0312;
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switch (m.Msg)
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{
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case WM_HOTKEY:
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switch (m.WParam.ToInt32())
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{
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case 101: //Ctrl+S
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//save
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break;
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case 102: //Esc
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//escape
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break;
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case 103: //Ctrl+E
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//edit
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break;
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case 104: //Ctrl+A
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//add
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break;
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case 105: //Ctrl+D
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//delete
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break;
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}
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break;
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}
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base.WndProc(ref m);
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}
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![](http://www.dotblogs.com.tw/Providers/BlogEntryEditor/FCKeditor/editor/dialog/InsertCode/codeimages/ExpandedBlockEnd.gif)
至於什麼是WinProc呢?請看這邊的解說:http://msdn.microsoft.com/zh-tw/library/dd229215.aspx
寫一寫突然對user32.dll產生了很大的興趣,結果上網一查,這東西真的不得了,可以做好多事情阿,到底可以做什麼事情呢?請參考這個連結:http://www.webtropy.com/articles/art9-2.asp?lib=user32.dll,真是可怕....
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游舒帆 (gipi) 探索原力Co-founder,曾任TutorABC協理與鼎新電腦總監,並曾獲選兩屆微軟最有價值專家 ( MVP ),離開職場後創辦探索原力,致力於協助青少年培養面對未來的能力。認為教育與組織育才其實息息相關,都是在為未來儲備能量,2018年起成立為期一年的專題課程《職涯躍升的關鍵24堂課》,為培養台灣未來的領袖而努力。 |