В основном я работаю на SuSE Linux. В настоящее время использую openSUSE Tumbleweed, Qt 5.13.0. Пользователи же будут использовать Windows. Поэтому я использую GitHub для импорта проектов при сборке для других платформ а также для работы над ним как на работа так и из дома.

Qt Company анонсировала выпуск Qt Creator 4.8.1

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For the full set of lessons on Qt, on validation of IP-addresses to add Article also option to Qt/QML.

There is also a data entry field, in which we will enter the IP-address. Will be used to validate RegExpValidator . One unpleasant aspect in this case is that the slip a few variables in this line RegExpValidator is rather trivial task, therefore, confine ourselves to writing directly in the regular season regExp property of this object.

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When you will develop network applications, you may need to create form for input ip-address, but the use of a simple method setInputMask("000.000.000.000;_"); of QLineEdit does not provide the proper result as this mask allows to enter the values of 999, 657, etc., while the IP-address of the limited number of 255.

One way to solve this problem is to use Validator .

Project structure

The project is created as an application Qt Widgets, where files are created by default:

• QLineEdit_IP_Address.pro - project profile;
• mainwindow.h - header file of main window;
• mainwindow.cpp - source code of main window;
• main.cpp - the main source file from which the application starts;
• mainwindow.ui - file of user interface.