Table of contents

1. Menu bar

<QMenuBar>

<QMenu>

only one

1. Create the menu bar

QMenuBar* bar = new QMenuBar(this);

2. Put the menu into the main window

this->setMenuBar(bar);

3. Create a menu

QMenu* start = bar->addMenu("start");

4. Add menu items

start->addAction("save");

5. Add dividers

start->addSeparator();

2. Toolbar

<QToolBar>

can have multiple

1. Create and add a toolbar, and initialize the docking position to the left

QToolBar* tool = new QToolBar(this);
this->addToolBar(Qt::LeftToolBarArea, tool);

2. Add tool items, you can add controls

tool->addAction("search");
QPushButton* but = new QPushButton("save", this);
tool->addWidget(but);//添加按钮控件

3. Select the mobile attribute (whether it can be moved), the default is mobile

tool->setMovable(false);//不能移动

4. Select the floating property (whether it must be docked), the default is floating

tool->setFloatable(false);//禁止浮动

5. Select the subsequent docking status

//允许左右停靠
tool->setAllowedAreas(Qt::LeftToolBarArea|Qt::RightToolBarArea);

<QStatusBar>

only one

1. Create and add a status bar

 QStatusBar* status = new QStatusBar(this);
 this->setStatusBar(status);

2. Add controls, default on the left

QPushButton* but = new QPushButton("save", this);
status->addWidget(but);

Note: addAction does not report an error when adding an action class, but it is invalid

3. Add controls from the right

QLabel * lab = new QLabel("status", this);
status->addPermanentWidget(lab);//添加标签控件

<QDockWidget>

can have multiple

1. To create and add a floating window, an initialization position needs to be given

QDockWidget* dock = new QDockWidget("Dock", this);
addDockWidget(Qt::BottomDockWidgetArea, dock);//底部

2. Select the floating method, the default floating

dock->setFloating(true);

3. Select a docking location

dock->setAllowedAreas(Qt::AllDockWidgetAreas);//全方位停靠

4. Add controls

QPushButton* but = new QPushButton("save", this);
dock->setWidget(but);

5. Set the window size

dock->resize(200, 50);

Take notepad as an example

1. Create a Notepad control

QTextEdit* text = new QTextEdit(this);

2. Add a center control

setCentralWidget(text);