Get HWND on windows with Qt5 (from WId)

Question

I am trying to convert a Qt4 Application to Qt5. The only thing I couldn\'t figure out is how to get the HWND of a Widget. The program uses EcWin7 to show the progr

Answer 1

#include 

static QWindow* windowForWidget(const QWidget* widget) 
{
    QWindow* window = widget->windowHandle();
    if (window)
        return window;
    const QWidget* nativeParent = widget->nativeParentWidget();
    if (nativeParent) 
        return nativeParent->windowHandle();
    return 0; 
}

HWND getHWNDForWidget(const QWidget* widget)
{
    QWindow* window = ::windowForWidget(widget);
    if (window && window->handle())
    {
        QPlatformNativeInterface* interface = QGuiApplication::platformNativeInterface();
        return static_cast(interface->nativeResourceForWindow(QByteArrayLiteral("handle"), window));
    }
    return 0; 
}