private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
try
{
return(HookCallbackInner(nCode, wParam, lParam));
}
catch
{ }
return(InterceptKeys.CallNextHookEx(hookId, nCode, wParam, lParam));
}
private IntPtr HookCallbackInner(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0)
{
int vkCode = Marshal.ReadInt32(lParam);
if (wParam == (IntPtr)InterceptKeys.WM_KEYDOWN || wParam == (IntPtr)InterceptKeys.WM_SYS_KEYDOWN)
{
KeyDown?.Invoke(this, new RawKeyEventArgs(vkCode, false));
}
else if (wParam == (IntPtr)InterceptKeys.WM_KEYUP || wParam == (IntPtr)InterceptKeys.WM_SYS_KEYUP)
{
KeyUp?.Invoke(this, new RawKeyEventArgs(vkCode, false));
}
}
return(InterceptKeys.CallNextHookEx(hookId, nCode, wParam, lParam));
}
public void Dispose()
{
InterceptKeys.UnhookWindowsHookEx(hookId);
}
public KeyboardListener()
{
callBack = (LowLevelKeyboardProc)HookCallback;
hookId = InterceptKeys.SetHook(callBack);
}
