SendKey命令C＃

Question

我會感謝任何能夠幫助的人！

我正在使用下面的InterceptKeys類來更改某些鍵。例如，當我輸入開放式括號鍵「[」時，我想將其更改爲「ë」（每當我鍵入我的電腦，而不是特定的程序）。 我使用SendKey.Send（「ë」）;無論何時輸入「[」，但問題是在「ë」之後輸入「[」。 是否可以用「ë」或任何鍵代替「[」，或者取消「[」和只發送「ë」？

---

class InterceptKeys 
{ 
    private const int WH_KEYBOARD_LL = 13; 
    private const int WM_KEYDOWN = 0x0100; 
    private static LowLevelKeyboardProc _proc = HookCallback; 
    private static IntPtr _hookID = IntPtr.Zero; 

    public static void Main() 
    { 
     _hookID = SetHook(_proc); 
     Application.Run(); 
     UnhookWindowsHookEx(_hookID); 
    } 

    private static IntPtr SetHook(LowLevelKeyboardProc proc) 
    { 
     using (Process curProcess = Process.GetCurrentProcess()) 
     using (ProcessModule curModule = curProcess.MainModule) 
     { 
      return SetWindowsHookEx(WH_KEYBOARD_LL, proc, 
       GetModuleHandle(curModule.ModuleName), 0); 
     } 
    } 

    private delegate IntPtr LowLevelKeyboardProc(
     int nCode, IntPtr wParam, IntPtr lParam); 

    private static IntPtr HookCallback(
     int nCode, IntPtr wParam, IntPtr lParam) 
    { 
     if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN) 
     { 
      int vkCode = Marshal.ReadInt32(lParam); 
      //Console.WriteLine((Keys)vkCode); 
      if (vkCode == (int)Keys.OemOpenBrackets)) 
      { 

       SendKeys.Send("ë");     

      } 
     } 

     return CallNextHookEx(_hookID, nCode, wParam, lParam); 
    } 

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
    private static extern IntPtr SetWindowsHookEx(int idHook, 
     LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId); 

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
    [return: MarshalAs(UnmanagedType.Bool)] 
    private static extern bool UnhookWindowsHookEx(IntPtr hhk); 

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
    private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, 
     IntPtr wParam, IntPtr lParam); 

    [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
    private static extern IntPtr GetModuleHandle(string lpModuleName); 
} 

---

Answer 1

返回1，如果你處理的，而不是調用CallNextHookEx的關鍵。

IE，HookCallback()應該是這樣的

private static IntPtr HookCallback(
    int nCode, IntPtr wParam, IntPtr lParam) 
{ 
    if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN) 
    { 
     int vkCode = Marshal.ReadInt32(lParam); 
     //Console.WriteLine((Keys)vkCode); 
     if (vkCode == (int)Keys.OemOpenBrackets)) 
     { 

      SendKeys.Send("ë");     
      return 1; 
     } 
    } 

    return CallNextHookEx(_hookID, nCode, wParam, lParam); 
}