QT creator tips

Qt Creator Using skills

1. Qt Creator Shortcut keys

Qt There are many shortcuts , The commonly used shortcut keys are as follows

Shortcut key	function
Ctrl + N	Create a new file or project (N)
Ctrl + W	Close the current window / close current file
Ctrl + Shfit + W	Close all files
Ctrl + F4	close current file （windows）
Ctrl + R	function
Alt + ←（ Direction left key ）	Return to upper level （ return ）, Commonly used in jump code
Alt + →（ Right click in the direction ）	Go to the next level （ Forward ）, Commonly used in jump code
Ctrl + I	Qt It will automatically typeset and align the code
Ctrl-- (Ctrl+ Mouse wheel down )	Reduce font size
Ctrl++ (Ctrl+ Mouse wheel up )	Increase font size
Ctrl+0	Reset font size
Ctrl+<	Fold
Ctrl+>	an
Ctrl+Ins	Copy line
Ctrl+Alt+Down	Copy to line
Ctrl+Alt+Up	Copy to line
Ctrl+Shift+Enter	Insert a new line above the current line
Ctrl+Enter	Insert a new row below the current row
Ctrl+Shift+V	View clipboard history
Shift+Del	Cut line
Ctrl+J	Append row
Ctrl+Shift+Down	Move current row down
Ctrl+Shift+Up	Move the current line up
Ctrl + Left mouse button /Shift + F2	Switch function declaration / Definition
F4	Edit signals and slots
Ctrl+}	Jump to } The ending block
Ctrl+{	Jump to { The starting block
Ctrl+Shift+T	Open the type hierarchy window

2. Qt Creator Help document for

install Qt when , The help documentation is already installed in the installation directory /Qt5.12.9/Docs/ Next , by html Text format , You can use a browser to open , You can enter this directory to view the corresponding documents

In addition, it can be done in Qt Creator Search the corresponding keywords directly under . The steps are as follows , For example, to view
QPushButton class , First click ① Click... For help ② Select index... From the drop-down list at , stay ③ Place input “QPushButton”, You can also just enter “QPush” Match the index value . Click the matching option, as shown in the figure below ⑤ It's about , It is the help document that has been explored

For example, to view QPushButton What properties and functions of the class can be used , You can see “ Properties” and “ Public Functions” Properties and functions under the heading

For example, to view QPushButton What slots are available for class , You can see “Public Slots” Slot function under the heading