第C#實(shí)現(xiàn)全局快捷鍵功能在c#中使用全局快捷鍵

由于.net并沒有提供快捷鍵的庫，所以要使用該功能得通過api實(shí)現(xiàn)。

在winapi中，注冊和注銷全局快捷鍵分別是通過RegisterHotKey和UnregisterHotKey函數(shù)實(shí)現(xiàn)。在c#中直接使用該api顯得不夠簡潔，這里我提供了一個(gè)友好點(diǎn)的封裝。

代碼如下：

staticclassHotkey

#region系統(tǒng)api

[DllImport("user32.dll")]

[return:MarshalAs(UnmanagedType.Bool)]

staticexternboolRegisterHotKey(IntPtrhWnd,intid,HotkeyModifiersfsModifiers,Keysvk);

[DllImport("user32.dll")]

staticexternboolUnregisterHotKey(IntPtrhWnd,intid);

#endregion

///summary

///注冊快捷鍵

////summary

///paramname="hWnd"持有快捷鍵窗口的句柄/param

///paramname="fsModifiers"組合鍵/param

///paramname="vk"快捷鍵的虛擬鍵碼/param

///paramname="callBack"回調(diào)函數(shù)/param

publicstaticvoidRegist(IntPtrhWnd,HotkeyModifiersfsModifiers,Keysvk,HotKeyCallBackHanldercallBack)

intid=keyid++;

if(!RegisterHotKey(hWnd,id,fsModifiers,vk))

thrownewException("registhotkeyfail.");

keymap[id]=callBack;

///summary

///注銷快捷鍵

////summary

///paramname="hWnd"持有快捷鍵窗口的句柄/param

///paramname="callBack"回調(diào)函數(shù)/param

publicstaticvoidUnRegist(IntPtrhWnd,HotKeyCallBackHanldercallBack)

foreach(KeyValuePairint,HotKeyCallBackHanldervarinkeymap)

if(var.Value==callBack)

UnregisterHotKey(hWnd,var.Key);

///summary

///快捷鍵消息處理

////summary

publicstaticvoidProcessHotKey(System.Windows.Forms.Messagem)

if(m.Msg==WM_HOTKEY)

intid=m.WParam.ToInt32();

HotKeyCallBackHanldercallback;

if(keymap.TryGetValue(id,outcallback))

callback();

constintWM_HOTKEY=0x312;

staticintkeyid=10;

staticDictionaryint,HotKeyCallBackHanlderkeymap=newDictionaryint,HotKeyCallBackHanlder

publicdelegatevoidHotKeyCallBackHanlder();

enumHotkeyModifiers

MOD_ALT=0x1,

MOD_CONTROL=0x2,

MOD_SHIFT=0x4,

MOD_WIN=0x8

}

這里通過Hotkey類實(shí)現(xiàn)功能的封裝，使用非常簡單。下面為參考測試代碼。

voidTest()

MessageBox.Show("Test");

protectedoverridevoidWndProc(refMessagem)

base.WndProc(refm);

Hotkey.ProcessHotKey(m);

privatevoidbutton1_Click(objectsender,