[size=; font-size:10pt,10pt][font='Courier']编译成功后，但是却出不来运行的窗口程序
#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <QtGui>namespace Ui { class MainWindow;}class MainWindow : public QMainWindow{ Q_OBJECTpublic: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); void mouseMoveEvent(QMouseEvent *); void keyPressEvent(QKeyEvent *);private: Ui::MainWindow *ui;};#endif // MAINWINDOW_H
[size=; font-size:10pt,10pt][font='Courier']
#include <QtGui/QApplication>#include "mainwindow.h"#include <QTextCodec>int main(int argc, char *argv[]){ QApplication a(argc, argv); MainWindow w; QTextCodec::setCodecForTr(QTextCodec::codecForLocale()); w.show(); return a.exec();}#include "mainwindow.h"#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow){ ui->label->setText(tr("Try to press pushbutton A !")); ui->pushButton->setText(tr("press one key of the mouse,and then try to move !")); ui->setupUi(this);}void MainWindow::mouseMoveEvent(QMouseEvent *m){ QCursor my(QPixmap("D:/QtTraining/Event/images01/4601.ico")); QApplication::setOverrideCursor(my); int x = m->pos().x(); int y = m->pos().y(); ui->pushButton->setText(tr("mouse's point is (%1,%2),did you get it??").arg(x).arg(y)); ui->pushButton->move(m->pos());}void MainWindow::keyPressEvent(QKeyEvent *k){ if(k->key() == Qt::Key_A) { ui->label->setPixmap(QPixmap("D:/QtTraining/Event/images01/4602.ico")); ui->label->resize(100,100); }}MainWindow::~MainWindow(){ delete ui;}
[size=; font-size:10pt,10pt][font='Courier']Starting D:\QtTraining\Event\Event-build-desktop\debug\Event.exe...
[size=; font-size:10pt,10pt][font='Courier']D:\QtTraining\Event\Event-build-desktop\debug\Event.exe exited with code -1073741819
[size=; font-size:10pt,10pt][font='Courier']以上问题报错说是内存泄漏的原因！
