Dear ImGui base library with GLFW backend (Unix) and DirectX backend (Windows NT)

Upgraded to WIP 1.84.

Unix-like Systems

To build the library, execute make -j$(nproc) in the directory. To enable ImPlot support (adds to compile time significantly), pass the option implot=1 to the make command.

To compile a program with the library,

1. Install libglfw backend (Ubuntu based linux: sudo apt install libglfw3-dev, macOS: brew install libglfw)

2. Point include flag to imgui/include. To include the headers in your program, use e.g. imgui/imgui.h. To use implot in your program, you need to compile the library with the implot=1 option.

3. Compile your program with -limgui_glfw flag (with linker search path flag, -L, pointing to the correct link path)

4. Make sure to pass the following flags as well for complete linkage: macOS: -arch $(ARCH) -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo -L/usr/local/lib -lglfw, assuming brew linked the GLFW library files to /usr/local/lib. Update this path as necessary.

   Linux: -lGL `pkg-config --static --libs glfw3`

Windows NT Systems

Install Visual Studio C++ Compiler 2010 (MSVC 1600) or above, and the DirectX June 2010 SDK. Open command prompt and load vcvarsall.bat with x86 option to load compiler path settings. Execute build_dxYY.bat to compile.

WSL OpenGL3 support and issues

To use OpenGL3 with VcXsrV and WSL, perform the following steps:

1. Disable LIBGL_ALWAYS_INDIRECT by editing /etc/wsl-integration.sh.
2. Do not use -wgl command line argument (or Native opengl option in GUI) in VcXsrV. With these settings, the program runs on WSL.