/// <summary>
/// 获取键盘消息
/// </summary>
/// <param name="nCode"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
if (nCode >= 0)
{
#region old
KeyboardHookStruct KeyboardHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
#region 暂时不用
//int vkCode = Marshal.ReadInt32(lParam);
////WM_KEYDOWN和WM_SYSKEYDOWN消息，将会引发OnKeyDownEvent事件
//if (OnKeyDownEvent != null && (wParam == InterceptWin32Api.WM_KEYDOWN || wParam == InterceptWin32Api.WM_SYSKEYDOWN))
//{
// // 此处触发键盘按下事件
// // keyData为按下键盘的值,对应 虚拟码
// CustomizeKeyEventArgs e = new CustomizeKeyEventArgs(vkCode);
// OnKeyDownEvent(this, e);
//}
//WM_KEYUP和WM_SYSKEYUP消息，将引发OnKeyUpEvent事件
//if (OnKeyUpEvent != null && (wParam == InterceptWin32Api.WM_KEYUP || wParam == InterceptWin32Api.WM_SYSKEYUP))
//{
// // 此处触发键盘抬a起事件
// CustomizeKeyEventArgs e = new CustomizeKeyEventArgs(vkCode);
// OnKeyUpEvent(this, e);
//}
#endregion
#region 输入
if (OnInputEvent != null && wParam == WM_KEYUP)
{
byte[] keyState = new byte[256];
GetKeyboardState(keyState);
byte[] inBuffer = new byte[2];
if (ToAscii(KeyboardHookStruct.vkCode, KeyboardHookStruct.scanCode, keyState, inBuffer, KeyboardHookStruct.flags) == 1)
{
KeyPressEventArgs e = new KeyPressEventArgs((char)inBuffer[0]);
OnInputEvent(this, new BoardInputEventArgs()
{
KeyChar = e.KeyChar
});
}
}
#endregion
#endregion
}
return(InterceptWin32Api.CallNextHookEx(hKeyboardHook, nCode, wParam, lParam));
}
public void Stop()
{
bool retKeyboard = true;
if (hKeyboardHook != 0)
{
retKeyboard = InterceptWin32Api.UnhookWindowsHookEx(hKeyboardHook);
hKeyboardHook = 0;
}
if (!(retKeyboard))
{
throw new Exception("卸载钩子失败！");
}
}
static int hKeyboardHook = 0; //声明键盘钩子处理的初始值
/// <summary>
/// 安装键盘钩子
/// </summary>
public void Start()
{
if (hKeyboardHook == 0)
{
KeyboardHookProcedure = new InterceptWin32Api.HookProc(KeyboardHookProc);
ProcessModule cModule = Process.GetCurrentProcess().MainModule;
var mhIntPrt = InterceptWin32Api.GetModuleHandle(cModule.ModuleName);
hKeyboardHook = InterceptWin32Api.SetWindowsHookEx(InterceptWin32Api.WH_KEYBOARD_LL, KeyboardHookProcedure, mhIntPrt, 0);
if (hKeyboardHook == 0)
{
Stop();
throw new Exception("安装键盘钩子失败");
}
}
}
