golang installation qt

Qt is a powerful choice when developing desktop applications. It is a cross-platform C library that provides rich GUI components and tools for writing graphical user interfaces.

Golang’s popularity has been rising in recent years, and its use with Qt has become more and more common. So how to install Qt in Golang?

This article will introduce you to how to install Qt in Windows and Linux operating systems and use Qt in Golang.

1. Installing Qt on Windows

Qt supports a variety of operating systems, including 64-bit and 32-bit versions of Windows. When installing Qt, you need to choose the corresponding version according to your operating system and needs.

First, visit Qt’s official website (https://www.qt.io/download), select the Windows version, and choose the version number that suits you.

Next, download the corresponding installer and perform the installation. By default, Qt will be installed into the C:/Qt directory.

2. Installing Qt on Linux

Similarly, Qt is also suitable for a variety of Linux distributions. You need to choose the version you want to use before installation.

In Ubuntu or Debian systems, you can use the apt-get command to install Qt:

sudo apt-get install qt5-default

In Fedora or CentOS/RHEL systems, you can use the yum command to install Qt:

sudo yum install qt5-qtbase-devel

If you use other distributions or do not use a package manager to install Qt, you can download the installation package from the Qt official website and install it manually.

3. Using Qt in Go

On Windows, you can use the MinGW-W64 toolchain to compile Golang code and link with the Qt library. On Linux, you can use the GCC toolchain to compile and link.

First, import the Qt library in the Golang code:

// #cgo CXXFLAGS: -std=c++11 -I/usr/include/qt5 -fPIC
// #cgo LDFLAGS: -lQt5Core -lQt5Gui -lQt5Widgets
// #include <QApplication>
import "C"

Then you can use various components of Qt in the Golang code, for example:

app := C.QApplication_CApplication(C.int(0), nil)
window := C.QWidget_New(nil, 0)
window.SetWindowTitle("golang-qt demo")
layout := C.QVBoxLayout_New()
label := C.QLabel_New2("Hello, World!", window, 0)
layout.QVBoxLayout_AddWidget(label, 0)
window.QWidget_SetLayout(layout)
window.QWidget_Show()
app.QApplication_Exec()

The above code will create a A simple window that displays the text "Hello, World!"

Summary

Qt is a powerful cross-platform GUI library that can be used in other languages ​​such as Golang. It is very convenient to install Qt on Windows and Linux, and Golang desktop programs written using the Qt library can run normally under different operating systems.

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