To Open Beginning

本文汇总了多个开源技术社区及资源站点链接,包括SourceForge、Open Source、JavaScud、SpringSide等,为开发者提供丰富的学习与交流平台。
### Qt Installation Guide Using Qt Online Installer To install Qt using the Qt Online Installer, beginners can follow the detailed instructions below. The process covers both commercial and open-source versions of Qt. #### Prerequisites Before installing Qt, ensure that your system meets the following requirements: - A stable internet connection is required since the Qt Online Installer downloads necessary components during installation. - Sufficient disk space depending on the modules you intend to install[^1]. #### Downloading the Qt Online Installer 1. Visit the official Qt website at [https://www.qt.io](https://www.qt.io). 2. Navigate to the "Download" section and select the appropriate version of the Qt Online Installer for your operating system (Windows, macOS, or Linux)[^1]. 3. For open-source users, download the **Qt Online Installer (Open Source)**. Commercial license holders should choose the **Qt Online Installer (Commercial)** option. #### Running the Qt Online Installer 1. Once the installer is downloaded, execute it by double-clicking on the executable file. 2. Follow the on-screen prompts to accept the license agreement. Both open-source and commercial licenses have their own agreements, so ensure you review them carefully[^1]. #### Selecting Components 1. During the installation process, you will be prompted to select the components you wish to install. These include: - **Qt Kits**: Pre-configured sets of tools and libraries for specific platforms. - **Tools**: Such as Qt Creator IDE, compilers, and debuggers. - **Examples and Tutorials**: Useful for learning and testing purposes. - **Documentation**: Comprehensive guides and references. 2. Ensure that the desired version of Qt (e.g., 6.x or 5.x) is selected based on your project requirements[^1]. #### Completing the Installation 1. After selecting the components, proceed with the installation. The installer will download and install the selected packages. 2. Once the installation is complete, launch Qt Creator from the installed directory to verify the setup[^1]. #### Configuring Qt with OpenCV (Optional) If you plan to use Qt in conjunction with OpenCV, ensure that the Qt SDK or `libqt4` with development packages is installed on your machine. Build OpenCV with Qt support by passing `-DWITH_QT=ON` to CMake during the build process. ```bash cmake -DWITH_QT=ON .. make sudo make install ``` This configuration ensures that OpenCV leverages the experimental Qt backend for additional features such as TTF font rendering, interactive zooming, and more. --- ###
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