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mafulechka
Nov. 6, 2019, 4:36 p.m.

Qt → A fast and thread-safe pool allocator for Qt - Part 2

Qt, allocator, thread, performance

The first part of this article series looked at a pool allocator optimized for small allocations. The developers have said that they do a lot in Qt by allocating QEvent or QObject instances, and a specialized allocator can be useful …

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Evgenii Legotckoi
Nov. 4, 2019, 4:15 p.m.

QML → QML - Tutorial 036. Working with Signals and Slots in QML

Slot, QML, Signal, cpp, Qt

This article is the most comprehensive description of signals and slots in QML compared to all previous articles on this site.

In this article, I will try to explain the following when working with Qt/QML + Qt/C++:

  • ways to declare …
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mafulechka
Oct. 22, 2019, 3:06 p.m.

Qt → A fast and thread-safe pool allocator for Qt - Part 1

Qt, thread, performance, allocator

The code on which this article is based is under development, with various commits pending under the Allocator topic. Note that the code uses various C++17 features.

A few months ago, the Qt Company developers were working on fixing how …

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mafulechka
Oct. 10, 2019, 3:03 p.m.

Qt → Running Qt Quick on Vulkan, Metal, and Direct3D - Part 3

Windows, Qt, OpenGL, Vulkan, macOS, Quick, Graphics, Embedded, Desktop

In the third part of the Qt graphics series, we'll look at how shaders are handled in Qt Quick in Qt 5.14 when switching the scene graph to rendering through QRhi and the Qt Rendering Hardware Interface (Qt's hardware rendering …

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Evgenii Legotckoi
Oct. 7, 2019, 1:34 p.m.

Qt → Undocumented QMake - CONFIG += resources_big

Qt, QMake, resource

Our project uses a very large number of resources, both ordinary icons and svg images. At some point, the project stopped assembling on developers' PCs with a small memory capacity of 16 GB.

The problem turned out to be that …

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Andrei Yankovich
Oct. 6, 2019, 1:35 a.m.

Projects based on Qt → Release of C ++ / Qt deployment utility CQtDeployer v1.3.0

Qt, cqtdeployer, deployment, QML

The release of the cross-platform utility CQtDeployer is presented. The utility received a number of new features. The source code for the CQtDeployer components is licensed under LGPLv3 and is freely available on GitHub . This utility is used as …

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mafulechka
Oct. 4, 2019, 3 p.m.

Qt → Running Qt Quick on Vulkan, Metal and Direct3D - Part 2

Vulkan, Quick, macOS, Qt, Embedded, Windows, Graphics, Desktop, OpenGL

Let's pick up where we left off in the first article. An example of a Qt Quick application running on Linux on top of OpenGL and Vulkan was considered. We also saw the Vulkan frame capture in RenderDoc, which is …

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mafulechka
Oct. 2, 2019, 2:53 p.m.

Qt → Launch Qt Quick on Volcano, Metal and Direct3D

Vulkan, Quick, Qt, Embedded, windows, Graphics, Desktop, MacOS, OpenGL

Now that the first beta version of Qt 5.14 is approaching, it's time to talk about one of the most important new features. It's difficult to cover all the details regarding the graphics stack improvements and the path to Qt …

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mafulechka
Sept. 30, 2019, 4:43 p.m.

Qt → Cloud providers and telemetry via Qt MQTT

Google, Qt, iot, mqtt, telemetry

MQTT is an important standard for telemetry, especially in the IoT scenario.

The Qt Company is often approached by Qt customers and users to learn how to connect to various cloud providers and preferably keep the list of requirements short. …

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Evgenii Legotckoi
Sept. 1, 2019, 8:15 p.m.

Qt → Qt/C ++ - Tutorial 089. Buttons with absolute positioning inside QGraphicsView

Qt, QGraphicsView, QWidget, QPushButton

Considering the number of questions on the forum related to how to add buttons inside QGraphicsView, I decided to write a small tutorial on this topic. Moreover, there are various variations of the question. It can be a regular button, …

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  • Last comments
  • AK
    April 1, 2025, 11:41 a.m.
    Добрый день. В данный момент работаю над проектом, где необходимо выводить звук из программы в определенное аудиоустройство (колонки, наушники, виртуальный кабель и т.д). Пишу на Qt5.12.12 поско…
  • Evgenii Legotckoi
    March 9, 2025, 9:02 p.m.
    К сожалению, я этого подсказать не могу, поскольку у меня нет необходимости в обходе блокировок и т.д. Поэтому я и не задавался решением этой проблемы. Ну выглядит так, что вам действитель…
  • VP
    March 9, 2025, 4:14 p.m.
    Здравствуйте! Я устанавливал Qt6 из исходников а также Qt Creator по отдельности. Все компоненты, связанные с разработкой для Android, установлены. Кроме одного... Когда пытаюсь скомпилиров…
  • ИМ
    Nov. 22, 2024, 9:51 p.m.
    Добрый вечер Евгений! Я сделал себе авторизацию аналогичную вашей, все работает, кроме возврата к предидущей странице. Редеректит всегда на главную, хотя в логах сервера вижу запросы на правильн…
  • Evgenii Legotckoi
    Oct. 31, 2024, 11:37 p.m.
    Добрый день. Да, можно. Либо через такие же плагины, либо с постобработкой через python библиотеку Beautiful Soup