/// <summary>
/// 卸载钩子
/// </summary>
public void UnLoadWindowsKeyBordHook()
{
if (hHook != IntPtr.Zero)
{
//如果钩子已经挂上则取消钩子，否则不用取消
HookApi.UnhookWindowsHookEx(hHook);
_hookProcHandle.Free();
hHook = IntPtr.Zero;
}
}
/// <summary>
/// 钩子回调
/// </summary>
/// <param name="nCode"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
public bool KEYBOARD_HOOKPRO(int nCode, IntPtr wParam, IntPtr lParam)
{
HookApi.KBDLLHOOKSTRUCT kb = new HookApi.KBDLLHOOKSTRUCT();
HookApi.CopyMemory(ref kb, lParam, 20); //结果就在这里了
//if (kb.vkCode == 91) { return true; }//屏蔽左WIN健,,右边的是92
UnLoadWindowsKeyBordHook();
LoadWindowsKeyBordHook();
if (OnKeyPressCode != null)
{
OnKeyPressCode(kb.vkCode, System.Windows.Forms.Control.ModifierKeys); //响应外界的事件
}
return(HookApi.CallNextHookEx(hHook, nCode, wParam, lParam));
}
/// <summary>
/// 设置钩子....调用此方法即可装载钩子
/// </summary>
public void LoadWindowsKeyBordHook()
{
if (hHook == IntPtr.Zero)
{
HookApi.HookPro hk = new HookApi.HookPro(this.KEYBOARD_HOOKPRO);
_hookProcHandle = GCHandle.Alloc(hk);
//挂钩子
hHook = HookApi.SetWindowsHookEx(
HookApi.WH_KEYBOARD_LL,
hk,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().ManifestModule),
0);
if (hHook == IntPtr.Zero)
{
throw new Exception("安装钩子不成功！"); // 挂钩子不成功返回值 0
}
}
}