设置应用程序的热键

实现：
 

[System.Runtime.InteropServices.DllImport("user32.dll")]
   public static extern bool SendMessage(IntPtr hwnd,int wMsg,int wParam,int lParam);
   private const int WM_SETHOTKEY = 0x0032;
   private const int HOTKEYF_ALT = 0x0004;
   
   
   private void Form1_Load(object sender, System.EventArgs e)
   { 
 
    int wHotkey;
    wHotkey=(HOTKEYF_ALT)*0x0100+'A';
    SendMessage(this.Handle, WM_SETHOTKEY, wHotkey, 0);
   }