本次内容均转自http://www.cppblog.com/lai3d/archive/2007/07/21/28476.html
/****************************************************************
**
** Qt教程一 - 3
**
****************************************************************/
#include <qapplication.h>
#include <qpushbutton.h>
#include <qfont.h>
#include <qvbox.h>
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QVBox box;
box.resize( 200, 120 );
QPushButton quit( "Quit", &box );
quit.setFont( QFont( "Times", 18, QFont::Bold ) );
QObject::connect( &quit, SIGNAL(clicked()), &a, SLOT(quit()) );
a.setMainWidget( &box );
box.show();
return a.exec();
}
在4.3中已经没有QVBox这个类了
QVBox
The QVBox class is now only available as Q3VBox in Qt 4. You can achieve the same result as QVBox by creating a QWidget with a vertical layout:
For example, if you have code like
QVBox *vbox = new QVBox;
QPushButton *child1 = new QPushButton(vbox);
QPushButton *child2 = new QPushButton(vbox);
you can rewrite it as
QWidget *vbox = new QWidget;
QPushButton *child1 = new QPushButton;
QPushButton *child2 = new QPushButton;
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(child1);
layout->addWidget(child2);
vbox->setLayout(layout);
Note that child widgets are not automatically placed into the widget‘s layout; you will need to manually add each widget to the QVBoxLayout.
我写的：
/****************************************************************
**
** Qt教程一 - 3
**
****************************************************************/
#include <qapplication.h>
#include <qpushbutton.h>
#include <qfont.h>
#include <qboxlayout.h>
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QWidget window;
window.resize(200,120);
QVBoxLayout layout;
QPushButton quit( "Quit", &window );
quit.setFont( QFont( "Times", 18, QFont::Bold ) );
QObject::connect( &quit, SIGNAL(clicked()), &a, SLOT(quit()) );
layout.addWidget(&quit);
window.setLayout(&layout);
window.show();
return a.exec();
}
转《Qt教程一 —— 第三章：家庭价值》
原文：http://www.cnblogs.com/willstill/p/5167116.html
