private IntPtr LowLevelKeyboardProc(int nCode, UIntPtr wParam, IntPtr lParam)
{
//Console.WriteLine("got event");
if (nCode >= 0)
{
if (wParam.ToUInt32() == (int)InterceptKeys.KeyEvent.WM_KEYDOWN ||
wParam.ToUInt32() == (int)InterceptKeys.KeyEvent.WM_KEYUP ||
wParam.ToUInt32() == (int)InterceptKeys.KeyEvent.WM_SYSKEYDOWN ||
wParam.ToUInt32() == (int)InterceptKeys.KeyEvent.WM_SYSKEYUP)
{
hookedKeyboardCallbackAsync.BeginInvoke((InterceptKeys.KeyEvent)wParam.ToUInt32(), Marshal.ReadInt32(lParam), null, null);
}
}
//return (IntPtr) 1;
return(InterceptKeys.CallNextHookEx(hookId, nCode, wParam, lParam));
}
public void Hook(bool getNextKeyOnly = false)
{
// We have to store the HookCallback, so that it is not garbage collected runtime
hookedLowLevelKeyboardProc = (InterceptKeys.LowLevelKeyboardProc)LowLevelKeyboardProc;
// Set the hook
hookId = InterceptKeys.SetHook(hookedLowLevelKeyboardProc);
// Assign the asynchronous callback event
if (getNextKeyOnly)
{
hookedKeyboardCallbackAsync = new KeyboardCallbackAsync(KeyboardListener_KeyboardCallbackAsyncOneKey);
}
else
{
hookedKeyboardCallbackAsync = new KeyboardCallbackAsync(KeyboardListener_KeyboardCallbackAsync);
}
}
public void UnHook()
{
InterceptKeys.UnhookWindowsHookEx(hookId);
}
/// <summary>
/// Disposes the hook.
/// <remarks>This call is required as it calls the UnhookWindowsHookEx.</remarks>
/// </summary>
public void Dispose()
{
InterceptKeys.UnhookWindowsHookEx(hookId);
}
void KeyboardListener_KeyboardCallbackAsyncOneKey(InterceptKeys.KeyEvent keyEvent, int vkCode)
{
switch (keyEvent)
{
// KeyDown events
case InterceptKeys.KeyEvent.WM_KEYDOWN:
if (KeyDown != null)
KeyDown(this, new RawKeyEventArgs(vkCode, false));
break;
case InterceptKeys.KeyEvent.WM_SYSKEYDOWN:
if (KeyDown != null)
KeyDown(this, new RawKeyEventArgs(vkCode, true));
break;
// KeyUp events
case InterceptKeys.KeyEvent.WM_KEYUP:
if (KeyUp != null)
KeyUp(this, new RawKeyEventArgs(vkCode, false));
break;
case InterceptKeys.KeyEvent.WM_SYSKEYUP:
if (KeyUp != null)
KeyUp(this, new RawKeyEventArgs(vkCode, true));
break;
default:
break;
}
this.Dispose();
}