trouble runnign the imgui-sdl example

[weather-tracker]

I tried copying the imgui-sdl example cpp file.
most headers I have.
but i cannot find the imgui_imple_sdl.h or opengl3.h headers.
they are not included in the vcpkg imgui package manager, or in the imgui download from git hub.
I have all others.

[weather-tracker]

found them in the github download under backends.
how come they are not in the vcpkg download?

[PathogenDavid]

I am not especially familiar with vcpkg, but my understanding is you need to explicitly enable the sdl2-binding feature with vcpkg install imgui[sdl2-binding]

[weather-tracker]

when I run it now i get a exception thrown
(void)SDL_atomicDecref(&s_mem.num_allocatoins);

I can tell it to continue then the boxup and another with a debug error
tell it retry to go to error location. error is IM_ASSERT(bd != NULL && "did you call ImGui_ImplOpenGL3_Init()?);

if I continue the program stops running.
it is the opengl3 example.

I do not know if I can run opengl3, the example said it should work with opengl2 unless I misunderstand it.

[weather-tracker]

works with opengl2 example
get first error expand to heap corruption
continue and it runs.