Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “A slot function called on_pushButton_clicked() will now appear in both mainwindow.h and mainwindow.cpp.”

A block of code is set as follows:

import QtQuick
import QtQuick.Window
Window {
   visible: true
   width: 640
   title: qsTr("Hello World")
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

width: 128;
 	height: 128;
 	x: -128;
 	y: parent.height / 2;

Any command-line input or output is written as follows:

find_package(Qt6 REQUIRED COMPONENTS Network)
target_link_libraries(mytarget PRIVATE Qt6::Network)

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Select Application (Qt) under the Projects window, and then select Qt Widgets Application.”

Tips or important notes

Appear like this.