Compile Qt Projects in VSCode win

To set up and compile Qt projects in Visual Studio Code (VSCode), follow these steps. This guide uses QMake as the build system and assumes you have Qt and VSCode installed.

1. Install Required Tools

Install Qt (e.g., Qt 5.15 or later) and ensure the required compiler (e.g., MinGW or MSVC) is installed.

Install VSCode and the following extensions: C/C++ by Microsoft. Qt Tools or Qt Extension Pack for better integration.

2. Configure Environment Variables

Add the following paths to your system's environment variables: Qt/bin (e.g., C:/Qt/5.15.2/mingw81_64/bin). Compiler path (e.g., C:/Qt/Tools/mingw810_64/bin).

3. Open the Project in VSCode

Create a Qt project using Qt Creator or manually create a .pro file.

Open the project folder in VSCode.

4. Configure VSCode

a. Configure C/C++ Plugin

Edit .vscode/c_cpp_properties.json:

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**",
                "C:/Qt/5.15.2/mingw81_64/include/**"
            ],
            "compilerPath": "C:/Qt/Tools/mingw810_64/bin/g++.exe",
            "intelliSenseMode": "windows-gcc-x64",
            "cStandard": "c17",
            "cppStandard": "c++17"
        }
    ],
    "version": 4
}

Create .vscode/tasks.json to define build tasks:

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "qmake-debug",
            "type": "shell",
            "command": "qmake",
            "args": [
                "../${workspaceFolderBasename}.pro",
                "-spec",
                "win32-g++",
                "\"CONFIG+=debug\""
            ],
            "options": {
                "cwd": "${workspaceFolder}/build"
            }
        },
        {
            "label": "make-debug",
            "type": "shell",
            "command": "mingw32-make",
            "args": [
                "-j8"
            ],
            "options": {
                "cwd": "${workspaceFolder}/build"
            },
            "dependsOn": [
                "qmake-debug"
            ]
        }
    ]
}

c. Configure Debugging

Create .vscode/launch.json for debugging:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build/debug/${workspaceFolderBasename}.exe",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "C:/Qt/Tools/mingw810_64/bin/gdb.exe",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "make-debug"
        }
    ]
}

5. Build and Run

Use Ctrl+Shift+B to build the project.

For debugging, press F5 to start debugging with breakpoints.

Tips

Ensure all paths in configuration files match your local setup.

Use Ctrl+Shift+P > Run Task to execute specific tasks like qmake-debug.

This setup allows you to efficiently compile and debug Qt projects directly in VSCode

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