選擇application模板,一路確定
創建完目錄如下
修改mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
protected:
void paintEvent(QPaintEvent *);
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H修改mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPainter>
#include <QRectF>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::paintEvent(QPaintEvent *){
QPainter p(this);
p.drawText(QRectF(30,30,100,100),QString("Hellow Word!"));
}