windows 如何在 QT 中从主窗口显示另一个窗口
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/1518317/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to show another window from mainwindow in QT
提问by Samir
Platform: QT, Windows XP
平台：QT、Windows XP
I am new to Qt. I want to show another window(what to do to open it as dialog) from mainwindow. I did "add New Item ->Qt Designer Form Class", named it say MyWindow. But how to show this MyWindowfrom mainwindow?
我是 Qt 的新手。我想从mainwindow. 我做了“ add New Item ->Qt Designer Form Class”，命名它说MyWindow。但如何证明这MyWindow从mainwindow？
回答by Patrice Bernassola
- 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).
- 在 QMainWindow 中实现一个插槽，您将在其中打开新窗口，
- 在 QMainWindow 上放置一个小部件，
- 将此小部件的信号连接到 QMainWindow 的插槽（例如：如果小部件是 QPushButton，则将信号连接
click()到您创建的 QMainWindow 自定义插槽）。
Code example:
代码示例：
MainWindow.h
主窗口.h
// ...
include "newwindow.h"
// ...
public slots:
void openNewWindow();
// ...
private:
NewWindow *mMyNewWindow;
// ...
}
MainWindow.cpp
主窗口文件
// ...
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.
这是关于如何显示自定义新窗口的示例。有很多方法可以做到这一点。
