private IntPtr HookCallback(
int nCode, IntPtr wParam, IntPtr lParam)
{
try
{
return(HookCallbackInner(nCode, wParam, lParam));
}
catch
{
Console.WriteLine("There was some error somewhere...");
}
return(InterceptKeys.CallNextHookEx(hookId, nCode, wParam, lParam));
}
private IntPtr HookCallbackInner(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0)
{
if (wParam == (IntPtr)InterceptKeys.WM_KEYDOWN)
{
int vkCode = Marshal.ReadInt32(lParam);
KeyDown?.Invoke(this, new RawKeyEventArgs(vkCode, false));
}
else if (wParam == (IntPtr)InterceptKeys.WM_KEYUP)
{
int vkCode = Marshal.ReadInt32(lParam);
KeyUp?.Invoke(this, new RawKeyEventArgs(vkCode, false));
}
}
return(InterceptKeys.CallNextHookEx(hookId, nCode, wParam, lParam));
}
public void Dispose()
{
InterceptKeys.UnhookWindowsHookEx(hookId);
}
public KeyboardListener()
{
ptr = (InterceptKeys.LowLevelKeyboardProc)HookCallback;
hookId = InterceptKeys.SetHook(ptr);
}
