Method takeOverNativeEvent

ElaWidgetTools/ElaAppBar.cpp:391–714

int ElaAppBar::takeOverNativeEvent(const QByteArray& eventType, void* message, qintptr* result)
#else
int ElaAppBar::takeOverNativeEvent(const QByteArray& eventType, void* message, long* result)
#endif
{
    Q_D(ElaAppBar);
    if ((eventType != "windows_generic_MSG") || !message)
    {
        return 0;
    }
    const auto msg = static_cast<const MSG*>(message);
    const HWND hwnd = msg->hwnd;
    if (!hwnd || !msg)
    {
        return 0;
    }
    d->_currentWinID = (qint64)hwnd;
    const UINT uMsg = msg->message;
    const WPARAM wParam = msg->wParam;
    const LPARAM lParam = msg->lParam;
    switch (uMsg)
    {
    case WM_WINDOWPOSCHANGING:
    {
        WINDOWPOS* wp = reinterpret_cast<WINDOWPOS*>(lParam);
        if (wp != nullptr && (wp->flags & SWP_NOSIZE) == 0)
        {
            wp->flags |= SWP_NOCOPYBITS;
            *result = ::DefWindowProcW(hwnd, uMsg, wParam, lParam);
            return 1;
        }
        return 0;
    }
    case WM_NCPAINT:
    {
        if (!eWinHelper->getIsCompositionEnabled())
        {
            *result = FALSE;
            return 1;
        }
        else
        {
            return -1;
        }
    }
    case WM_NCACTIVATE:
    {
        if (eWinHelper->getIsCompositionEnabled())
        {
            *result = ::DefWindowProcW(hwnd, WM_NCACTIVATE, wParam, -1);
        }
        else
        {
            *result = TRUE;
        }
        return 1;
    }
    case WM_SIZE:
    {
        if (wParam == SIZE_RESTORED)