10_5.cpp

一个qt设计的教程

#include <qapplication.h>
#include <qwidget.h>
#include <qprogressdialog.h>

class MyMainWindow:public QWidget
{
 public:
    MyMainWindow();
 private:
    QProgressDialog *pdialog;
};

MyMainWindow::MyMainWindow()
{
 setGeometry(100,100,200,50);
 pdialog = new QProgressDialog("Doing something ...","Abort Operation",100,this,"pdialog",TRUE);
 pdialog->show();
 
 int x = 0;
 int i = 0;
 while (x <= 100)
 {
   for (i=0;i<1000000;i++)
   pdialog->setProgress(x);
   x++;
 } 
}

main(int argc,char **argv)
{
 QApplication a(argc,argv);
 MyMainWindow w;

 a.setMainWidget(&w);
 w.show();
 a.exec();
}