AFAIK this is also why QtSingleApplication cannot work on Qt 5 too. On 12/28/2012 09:44 AM, Bo Thorsen wrote: > Hi Sean, > > Den 20-12-2012 13:30, Sean Harmer skrev: >> On Thursday 20 December 2012 12:11:43 Bo Thorsen wrote: >>> In Qt4, WId was a platform independent window handle. On Windows this >>> was just a typedef from HWND. But in Qt5, that's no longer the case. >> Take a look at: >> >> virtual QPlatformNativeInterface *QWindowsIntegrationnativeInterface() const > QPlatformNativeInterface is a private class. Yes, it's nice for > inspiration, but I'm pretty amazed at how difficult this is with Qt 5. I > find it hard to believe that it's so hard to get to the HWND. > >> and >> >> void *QWindowsNativeInterface::nativeResourceForWindow(const QByteArray >> &resource, QWindow *window) >> >> in src/plugins/windows. With the QWindowsNativeInterface you can obtain the >> native HWND and device context I think. > ATM it looks like I pretty much have to copy the entire source code for > all the HWND access, just to get to the HWND from a widget. That sucks :( > > Right now, I have given up on a platform independent way to store window > handles. My goal now is just to call a windows specific function with > the HWND from a QWidget window. Something like this: > > WindowsFunction(getHWND(myWidget)); > > If this is not possible in Qt 5 without bad hacks, then it's a problem > that needs to be adressed. > > I'm still hoping that I just missed the proper solution. > > Bo Thorsen. >
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