WM_INPUT messages capture with winEventFilter

[OriginalPrankst]

Hello!
I use class which inherits QApplication and implements its own winEventFilter(MSG* msg, long* result) to capture WM_INPUT messages and to process raw input data from keyboard in Qt 4.8.4.

bool Application::winEventFilter(MSG *msg, long *result)
{
  UINT dwSize;
  WCHAR keyChar;
  switch(msg->message)
  {
    case WM_INPUT:
    {
      if (GetRawInputData((HRAWINPUT)msg->lParam,
                          RID_INPUT,
                          NULL,
                          &dwSize,
                          sizeof(RAWINPUTHEADER)) == -1) return false;
      LPBYTE lpb = new BYTE[dwSize];
      if (lpb == NULL) return false;
      if (GetRawInputData((HRAWINPUT)msg->lParam,
                          RID_INPUT,
                          lpb,
                          &dwSize,
                          sizeof(RAWINPUTHEADER)) != dwSize)
      {
        delete[] lpb;
        return false;
      }
      PRAWINPUT raw = (PRAWINPUT)lpb;
      UINT Event;
      Event = raw->data.keyboard.Message;
      keyChar = GetSymbol(raw->data.keyboard.VKey);
      char keyCharLO = (char)keyChar;
      delete[] lpb;
      if (!iswprint(keyChar))
        return false;
      // process data from keyboard
      keyStrokeHandle->ProcessNextKeyStroke(Event, keyChar);
 
      *result = 0;
      QApplication::winEventFilter(msg, result);
      return true;
    }
    default:
    {
      return false;
    }
  }
}

bool Application::winEventFilter(MSG *msg, long *result)
{
  UINT dwSize;
  WCHAR keyChar;
  switch(msg->message)
  {
    case WM_INPUT:
    {
      if (GetRawInputData((HRAWINPUT)msg->lParam,
                          RID_INPUT,
                          NULL,
                          &dwSize,
                          sizeof(RAWINPUTHEADER)) == -1) return false;
      LPBYTE lpb = new BYTE[dwSize];
      if (lpb == NULL) return false;
      if (GetRawInputData((HRAWINPUT)msg->lParam,
                          RID_INPUT,
                          lpb,
                          &dwSize,
                          sizeof(RAWINPUTHEADER)) != dwSize)
      {
        delete[] lpb;
        return false;
      }
      PRAWINPUT raw = (PRAWINPUT)lpb;
      UINT Event;
      Event = raw->data.keyboard.Message;
      keyChar = GetSymbol(raw->data.keyboard.VKey);
      char keyCharLO = (char)keyChar;
      delete[] lpb;
      if (!iswprint(keyChar))
        return false;
      // process data from keyboard
      keyStrokeHandle->ProcessNextKeyStroke(Event, keyChar);

      *result = 0;
      QApplication::winEventFilter(msg, result);
      return true;
    }
    default:
    {
      return false;
    }
  }
}

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After RegisterRawInputDevices call, application starts to recieve WM_INPUT messages.
The problem is: when user types in qt application, data from keyboard don't get to input which is used to type data, it is "blocked" by winEventFilter.
According to Qt Documentation:

If you don't want the event to be processed by Qt, then return true and set result to the value that the window procedure should return. Otherwise return false.

And MSDN:

Return value
If an application processes this message, it should return zero.

But I can't receive my input in application whether I return true/false from winEventFilter, change *result value or invoke inhedited QApplcation::winEventFilter.
What do I have to do to get data in application after WM_INPUT processing?

[OriginalPrankst]

The answer to my question is not related to Qt.
Wrong flags of RAWINPUTDEVICE structure were my problem. I used RIDEV_NOLEGACY flag, so legacy keyboard messages were not generated. Avoid it to get data to your application.

If RIDEV_NOLEGACY is set for a mouse or a keyboard, the system does not generate any legacy message for that device for the application. For example, if the mouse TLC is set with RIDEV_NOLEGACY, WM_LBUTTONDOWN and related legacy mouse messages are not generated. Likewise, if the keyboard TLC is set with RIDEV_NOLEGACY, WM_KEYDOWN and related legacy keyboard messages are not generated.

RAWINPUTDEVICE rid;
rid.dwFlags = 0; // I've used RIDEV_NOLEGACY here
rid.usUsagePage = 1;
// only raw keyboard data
rid.usUsage = 6;
rid.hwndTarget = windowId;
RegisterRawInputDevices(&rid, 1, sizeof(rid));

RAWINPUTDEVICE rid;
rid.dwFlags = 0; // I've used RIDEV_NOLEGACY here
rid.usUsagePage = 1;
// only raw keyboard data
rid.usUsage = 6;
rid.hwndTarget = windowId;
RegisterRawInputDevices(&rid, 1, sizeof(rid));

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