Open a file instance using Qt

//dialog.h#ifndef DIALOG_H#define DIALOG_H#include <QDialog>#include <QLineEdit>#include <QGridLayout>class Dialog : public QDialog{    Q_OBJECTpublic:    Dialog(QWidget *parent = 0);    ~Dialog();private:    QPushButton *fileBtn;    QLineEdit *fileLineEdit;    QGridLayout *mainLayout;private slots:    void showFile();};#endif // DIALOG_H

//dialog.cpp#include "dialog.h"#include <QGridLayout>#include <QFileDialog>#include <QPushButton>Dialog::Dialog(QWidget *parent)    : QDialog(parent){    setWindowTitle(tr("Every Standard Dialog Instance"));    fileBtn=new QPushButton;    fileBtn->setText(tr("File Standard Dialog Instance"));    fileLineEdit=new QLineEdit;    mainLayout=new QGridLayout(this);    mainLayout->addWidget(fileBtn,0,0);    mainLayout->addWidget(fileLineEdit,0,1);    connect(fileBtn,SIGNAL(clicked()),this,SLOT(showFile()));}void Dialog::showFile(){    QString s=QFileDialog::getOpenFileName(this,"open file dialog","/",tr("Program Files (*.cpp *.c *.h)"));    fileLineEdit->setText(s);}Dialog::~Dialog(){}

:

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/200P643M-0.jpg "style =" float: none; "title =" 1.jpg" alt = "162617504.jpg"/>

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/200PA409-1.jpg "style =" float: none; "title =" 2.jpg" alt = "162617218.jpg"/>

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/200P61259-2.jpg "style =" float: none; "title =" 3.jpg" alt = "162618319.jpg"/>

This article is from the "cabbage" blog, please be sure to keep this source http://zhengyongkun.blog.51cto.com/1163218/1296498