| // dear imgui: Platform Binding for GLUT/FreeGLUT | 
 | // This needs to be used along with a Renderer (e.g. OpenGL2) | 
 |  | 
 | // !!! GLUT/FreeGLUT IS OBSOLETE SOFTWARE. Using GLUT is not recommended unless you really miss the 90's. !!! | 
 | // !!! If someone or something is teaching you GLUT in 2020, you are being abused. Please show some resistance. !!! | 
 | // !!! Nowadays, prefer using GLFW or SDL instead! | 
 |  | 
 | // Issues: | 
 | //  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I | 
 | //  [ ] Platform: Missing mouse cursor shape/visibility support. | 
 | //  [ ] Platform: Missing clipboard support (not supported by Glut). | 
 | //  [ ] Platform: Missing gamepad support. | 
 |  | 
 | // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this. | 
 | // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp. | 
 | // https://github.com/ocornut/imgui | 
 |  | 
 | #pragma once | 
 | #include "imgui.h"      // IMGUI_IMPL_API | 
 |  | 
 | IMGUI_IMPL_API bool     ImGui_ImplGLUT_Init(); | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_InstallFuncs(); | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_Shutdown(); | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_NewFrame(); | 
 |  | 
 | // You can call ImGui_ImplGLUT_InstallFuncs() to get all those functions installed automatically, | 
 | // or call them yourself from your own GLUT handlers. We are using the same weird names as GLUT for consistency.. | 
 | //---------------------------------------- GLUT name --------------------------------------------- Decent Name --------- | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_ReshapeFunc(int w, int h);                           // ~ ResizeFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_MotionFunc(int x, int y);                            // ~ MouseMoveFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_MouseFunc(int button, int state, int x, int y);      // ~ MouseButtonFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_MouseWheelFunc(int button, int dir, int x, int y);   // ~ MouseWheelFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int y);         // ~ CharPressedFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_KeyboardUpFunc(unsigned char c, int x, int y);       // ~ CharReleasedFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_SpecialFunc(int key, int x, int y);                  // ~ KeyPressedFunc | 
 | IMGUI_IMPL_API void     ImGui_ImplGLUT_SpecialUpFunc(int key, int x, int y);                // ~ KeyReleasedFunc |