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lalamax3d/vtk_imgui.md

Created January 26, 2024 05:38
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  1. lalamax3d created this gist Jan 26, 2024.
    96 changes: 96 additions & 0 deletions vtk_imgui.md
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    # NOTES


    ## Build VTK from src (cmake n Vs 2022)

    i followed mostly [this guide](https://github.com/Kitware/VTK/blob/master/Documentation/dev/build_windows_vs.md)

    - install cmake (latest)
    - install visual studio 2022 community
    - download vtk (latest), extract in src (like)
    - c:\vtk\src
    - c:\vtk\build (create empty dir)
    - run cmake gui from start, give 2 above dirs
    - run configure / generate
    - run open solution (project) in visual studio
    - set to Release and ALL_BUILD. build project

    ### NOW TO INSTALL THE BUILD

    - open cmake gui again, same settings
    - config / generate again ( make sure, vtk install path is good)
    - open solution(project)
    - make INSTALL project(solution default)
    - make sure, run as admin, so it can install
    - don't forget to add vtk\bin dir to path.

    ### to run example download any

    - even after path, i got error
    - so i have added that path in my project configuration (debugging)
    - Deebugging >> Environment >> PATH=$(PATH);C:\Program Files (x86)\VTK\bin



    ## ImGui in visual studio 2022 community

    based on guide [from here](https://www.youtube.com/watch?v=SP6Djf6ku1E&t=34s)

    0- copy imgui source to vendor subdir, in a new c++ windows empty project (template)
    1- decide/pick between ( dx9,10,12,opengl etc) i.e i picked dx9
    2- put imgui src in a subdir under 'vendor' and in project settings, add that path in vc++ directories >> likee >> $(ProjectDir)vendor\ImGui
    3- connect directx 9 static lib (project linker settings )
    4- then in project, show all files, and select related .h and .cpp files, RMB and add to project.
    5- write my cpp code in main file and run and it worked...

    ## c++ , using msys2 (g++) in vscode (failed)

    - Get MSYS2 from [here](https://code.visualstudio.com/docs/cpp/config-mingw)
    - install it, run it via msys2.exe
    - it opens it bash shell, run cmd
    - pacman -S --needed base-devel mingw-w64-ucrt-x86_64-toolchain
    - add this to user env
    - C:\msys64\ucrt64\bin
    - run cpp file from code (run without debug)
    - pick g++ (g++.exe) as compiler
    - pick mingw64 as platform
    - pick g++ (g++.exe) as linker
    - run it
    - notice tasks.json being added
    - edit tasks.json like

    ```json
    {
    "tasks": [
    {
    "type": "cppbuild",
    "label": "C/C++: g++.exe build active file",
    "command": "C:\\msys64\\ucrt64\\bin\\g++.exe",
    "args": [
    "-fdiagnostics-color=always",
    "-std=c++23",
    "-g",
    "${fileDirname}\\imgui\\*.h",
    "${fileDirname}\\imgui\\*.cpp",
    "-o",
    "${fileDirname}\\${fileBasenameNoExtension}.exe",
    "-ld3d9",
    "-ldwmapi",
    "-lgdi32",
    ],
    "options": {
    "cwd": "${fileDirname}"
    },
    "problemMatcher": [
    "$gcc"
    ],
    "group": {
    "kind": "build",
    "isDefault": true
    },
    "detail": "Task generated by Debugger."
    }
    ],
    "version": "2.0.0"
    }
    ```