QT使用同一按钮实现【打开/关闭】新窗口,实现方案如下:
使用一个全局状态变量记录窗口打开状态通过该状态实现新窗口的show
和close
实现代码如下:
#include "mainwindow.h"#include "ui_mainwindow.h"#include "form.h"#include <QDebug>static bool newWinFlag = false;Form *configWindow = NULL;MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow){ui->setupUi(this);}MainWindow::~MainWindow(){delete ui;}void MainWindow::on_pushButton_clicked(){qDebug() << newWinFlag;newWinFlag = !newWinFlag;if(newWinFlag == true){configWindow = new Form;configWindow->show();return;}else{configWindow->close();return;}}
参考链接:
/shenlaoli/article/details/128681032