Delphi begin Application.Initialize; Application.CreateForm(TForm1, Form1); Application.Run; end. Lazarus begin {$I project1.lrs} Application.Initialize; Application.CreateForm(TForm1, Form1); Application.Run; end. Qt #include <qapplication.h> #include <qpushbutton.h> int main( int argc, char **argv ) { QApplication a( argc, argv ); QPushButton hello( "Hello world!", 0 ); hello.resize( 100, 30 );