How to show another window from mainwindow in QT
- Implement a slot in your QMainWindow where you will open your new Window,
- Place a widget on your QMainWindow,
- Connect a signal from this widget to a slot from the QMainWindow (for example: if the widget is a QPushButton connect the signal
click()to the QMainWindow custom slot you have created).
Code example:
MainWindow.h
// ...include "newwindow.h"// ...public slots: void openNewWindow();// ...private: NewWindow *mMyNewWindow;// ...}MainWindow.cpp
// ... MainWindow::MainWindow() { // ... connect(mMyButton, SIGNAL(click()), this, SLOT(openNewWindow())); // ... }// ...void MainWindow::openNewWindow(){ mMyNewWindow = new NewWindow(); // Be sure to destroy your window somewhere mMyNewWindow->show(); // ...}This is an example on how display a custom new window. There are a lot of ways to do this.