private IntPtr HookProc(int nCode, IntPtr wParam, ref LowLevelKeyStruct lParam)
{
if (HookProcInner(nCode, (WindowMessages)wParam, ref lParam))
{
return((IntPtr)1);
}
return(CallNextHookEx(hookId, nCode, wParam, ref lParam));
}
private bool HookProcInner(int nCode, WindowMessages wParam, ref LowLevelKeyStruct lParam)
{
if (nCode < 0)
{
return(false);
}
if (lParam.Flags.HasFlag(LowLevelKeyFlags.Injected))
{
return(false);
}
bool alt = lParam.Flags.HasFlag(LowLevelKeyFlags.AltDown);
Keys key = alt ? lParam.VkCode | Keys.Alt : lParam.VkCode;
KeyHookEventArgs e = new KeyHookEventArgs(key);
KeyEvent?.Invoke(e);
return(e.Handled);
}
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, ref LowLevelKeyStruct lParam);
