Hi,
maybe you are missing the QApplication completely? Little example
assuming you're in your main():
This will work
...
QApplication app(argc, argv);
// Setup the main window designed with qt designer.
DesktopGuiMainWindow mainWindow;
mainWindow.show();
...
This will not
...
// QApplication app(argcc, argvv);
// Setup the main window designed with qt designer.
DesktopGuiMainWindow mainWindow;
mainWindow.show();
...
You can take a look at the Qt docs for a lot more info on how to setup a
Qt app.
Cheers,
Christoph
ÖÜÉØÔó schrieb:
> Hello:
> Could anybody provide precompile qt 3.3.6 of opensg1.8win ?I want to build
> SceneViewer,which need that.
> I have compiled qt 3.3.6 myself ever.but is not compatible with the
> open1.8win.exe
>
> :(
> built with my compiled qt3.3.6 ,there is the errors when run the app:
>
> QPaintDevice: Must construct a QApplication before a QPaintDevice
>
> maybe the problem of compatible.What happen?
>
> thanks a lot.
>
>
>
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