/// <summary>
/// 卸载钩子
/// </summary>
public void UNLOAD_WINDOWS_KETBOARD_HOOK()
{
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 IntPtr KEYBOARD_HOOKPRO(int nCode, IntPtr wParam, IntPtr lParam)
{
KBDLLHOOKSTRUCT kb = new KBDLLHOOKSTRUCT();
HookApi.CopyMemory(ref kb, lParam, 20); //结果就在这里了
UNLOAD_WINDOWS_KETBOARD_HOOK();
SET_WINDOWS_KEYBOARD_HOOK();
curkeypresscode(kb.vkCode, (int)Control.ModifierKeys);
return(HookApi.CallNextHookEx(hHook, nCode, wParam, lParam));
}
/// <summary>
/// 设置钩子
/// </summary>
public void SET_WINDOWS_KEYBOARD_HOOK()
{
if (hHook == IntPtr.Zero)
{
HookPro hk = new HookPro(this.KEYBOARD_HOOKPRO);
_hookProcHandle = GCHandle.Alloc(hk);
//挂钩子
hHook = HookApi.SetWindowsHookEx(
WH_KEYBOARD_LL,
hk,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),
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
}
}
}