accessing my main application window widget

[wysota]

Well... basicly you can call parent() as long as it returns something other than null. The last non-null result returned will be the main window.

Alternatively you can just call qApp->mainWidget() (just remember to #include <qapplication.h> and to set the main widget in main() ).

[TheRonin]

Well... basicly you can call parent() as long as it returns something other than null. The last non-null result returned will be the main window.

Alternatively you can just call qApp->mainWidget() (just remember to #include <qapplication.h> and to set the main widget in main() ).

I tried setting the main widget in main() like so:

#include <QApplication>
#include "mymainwidg.h"
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
  MyMainWidg widg;
  app.setMainWidget(&widg);
  widg.show();
  return app.exec();
}

#include <QApplication>
#include "mymainwidg.h"
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
  MyMainWidg widg;
  app.setMainWidget(&widg);
  widg.show();
  return app.exec();
}

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My compiler whines that setMainWidget is undeclared. What have i missed? Was setMainWidget perhaps not available in version 4.2.2?

[jacek]

My compiler whines that setMainWidget is undeclared. What have i missed? Was setMainWidget perhaps not available in version 4.2.2?

It's available only as a part of Qt3 Support module.