/// <summary>
/// 停止钩子
/// </summary>
public void Stop()
{
bool retKeyboard = true;
if (hKeyboardHook != 0)
{
retKeyboard = BaseWin32Api.UnhookWindowsHookEx(hKeyboardHook);
hKeyboardHook = 0;
}
if (!(retKeyboard))
{
throw new Exception("卸载钩子失败！");
}
}
/// <summary>
/// 停止全局钩子
/// </summary>
public void Stop()
{
bool retMouse = true;
if (_hMouseHook != 0)
{
retMouse = BaseWin32Api.UnhookWindowsHookEx(_hMouseHook);
_hMouseHook = 0;
}
// 假设卸下钩子失败
if (!(retMouse))
{
throw new Exception("UnhookWindowsHookEx failed.");
}
}
static int hKeyboardHook = 0; //声明键盘钩子处理的初始值
#endregion
#region 公共方法
/// <summary>
/// 安装键盘钩子
/// </summary>
public void Start()
{
if (hKeyboardHook == 0)
{
KeyboardHookProcedure = new BaseWin32Api.HookProcess(KeyboardHookProcess);
ProcessModule cModule = Process.GetCurrentProcess().MainModule;
var mhIntPrt = BaseWin32Api.GetModuleHandle(cModule.ModuleName);
hKeyboardHook = BaseWin32Api.SetWindowsHookEx(ConstDefintion.WH_KEYBOARD_LL, KeyboardHookProcedure, mhIntPrt, 0);
data = new KeyboardHookModel();
if (hKeyboardHook == 0)
{
Stop();
throw new Exception("安装键盘钩子失败");
}
}
}
/// <summary>
/// 启动全局钩子
/// </summary>
public void Start()
{
// 安装鼠标钩子
if (_hMouseHook == 0)
{
// 生成一个HookProc的实例.
_mouseHookProcedure = new BaseWin32Api.HookProcess(MouseHookProc);
ProcessModule cModule = Process.GetCurrentProcess().MainModule;
var mhIntPrt = BaseWin32Api.GetModuleHandle(cModule.ModuleName);
_hMouseHook = BaseWin32Api.SetWindowsHookEx(ConstDefintion.WH_MOUSE_LL, _mouseHookProcedure, mhIntPrt, 0);
//假设装置失败停止钩子
if (_hMouseHook == 0)
{
Stop();
throw new Exception("安装鼠标钩子失败...");
}
}
}
/// <summary>
/// 鼠标钩子回调函数
/// </summary>
private int MouseHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
// 假设正常执行而且用户要监听鼠标的消息
if ((nCode >= 0))
{
var eventArgs = GetMouseEventArgs(wParam, lParam);
switch (wParam)
{
case ConstDefintion.WM_LBUTTONDOWN:
OnMouseClickHanler(this, eventArgs);
break;
case ConstDefintion.WM_LBUTTONUP:
break;
case ConstDefintion.WM_LBUTTONDBLCLK:
break;
case ConstDefintion.WM_MOUSEMOVE:
OnMouseMoveHandler(this, eventArgs);
break;
case ConstDefintion.WM_RBUTTONDOWN:
break;
case ConstDefintion.WM_RBUTTONUP:
break;
case ConstDefintion.WM_RBUTTONDBLCLK:
break;
}
}
//启动下一次钩子
return(BaseWin32Api.CallNextHookEx(_hMouseHook, nCode, wParam, lParam));
}
/// <summary>
/// 获取键盘消息
/// </summary>
/// <param name="nCode"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
private int KeyboardHookProcess(int nCode, Int32 wParam, IntPtr lParam)
{
if (nCode >= 0)
{
var message = (BaseWin32Api.KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(BaseWin32Api.KeyboardHookStruct));
if (wParam == ConstDefintion.WM_KEYUP)
{
#region 数据处理
data.VirtKey = message.vkCode & 0xff; //虚拟吗
data.ScanCode = message.scanCode & 0xff; //扫描码
StringBuilder keyName = new StringBuilder(225);
if (BaseWin32Api.GetKeyNameText(data.ScanCode * 65536, keyName, 255) > 0)
{
data.KeyName = keyName.ToString().Trim(new char[] { ' ', '\0' });
}
else
{
data.KeyName = "";
}
byte[] kbArray = new byte[256];
uint uKey = 0;
BaseWin32Api.GetKeyboardState(kbArray);
if (BaseWin32Api.ToAscii(data.VirtKey, data.ScanCode, kbArray, ref uKey, 0))
{
data.Ascll = uKey;
data.Chat = Convert.ToChar(uKey);
}
TimeSpan ts = DateTime.Now.Subtract(data.Time);
#endregion
#region 手动输入
//时间戳，大于50 毫秒表示手动输入
if (ts.TotalMilliseconds > 50)
{
keyCodeStr = data.Chat.ToString();
data.Code = keyCodeStr;
data.IsValid = false;
TextHelper.Write($"json -01 ->{JsonConvert.SerializeObject(data)}");
}
#endregion
#region 扫码枪或者刷脸设备键盘
else
{
if (keyCodeStr.Length > 5)
{
data.IsValid = true;
}
keyCodeStr += data.Chat.ToString();
data.Code = keyCodeStr;
TextHelper.Write($"json -02 ->{JsonConvert.SerializeObject(data)}");
}
data.Time = DateTime.Now;
#endregion
#region 数据传输事件
if (OnDataEvent != null && wParam == ConstDefintion.WM_KEYUP)
{
OnDataEvent(data);
}
#endregion
}
}
return(BaseWin32Api.CallNextHookEx(hKeyboardHook, nCode, wParam, lParam));
}
