I would like to contribute

[Farioto]

Hi I'm new here I would like to help,

in imgui.cpp
Replace

    IM_ASSERT(IM_ARRAYSIZE(input_source_names) == ImGuiInputSource_COUNT && source >= 0 && source < ImGuiInputSource_COUNT);

with

  if (source < 0 || source >= ImGuiInputSource_COUNT)
  {
      IM_ASSERT(false && "Invalid ImGuiInputSource");
      return "Unknown";
  }

Replace

    IM_ASSERT(IM_ARRAYSIZE(mouse_source_names) == ImGuiMouseSource_COUNT && source >= 0 && source < ImGuiMouseSource_COUNT);

with

    if (source < 0 || source >= ImGuiMouseSource_COUNT)
    {
        IM_ASSERT(false && "Invalid ImGuiMouseSource");
        return "Unknown";
    }

That clears up
warning C33010 Unchecked lower bound for enum source used as index and warning C28182 Dereferencing NULL pointer. 'apply_focus_window' contains the same NULL value as 'g.NavWindow' did.

in imstb_truetype.h
Replace

 // FALLTHROUGH

with

      #if defined(_MSC_VER)
         __fallthrough;
      #elif __cplusplus >= 201703L
         [[fallthrough]];
      #endif

That clears up
warning C26819 Unannotated fallthrough between switch labels (es.78). with an explicit fallthrough annotation between case 0x0A and case 0x1D in a switch block—using __fallthrough for MSVC and [[fallthrough]] for C++17

in imgui_widgets.cpp
Replace

    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return;

with

    ImGuiWindow* window = GetCurrentWindow();
    if (!window) // Defensive guard for static analysis; should never be hit in valid Begin/End pairing.
        return;
    if (window->SkipItems)
        return;

That clears up
warning C6011 Dereferencing NULL pointer 'window'. using an early if (!window) return; guard.

fix these up and imgui should build without those issues anymore.

I would myself but I don't have permission
and I don't know where else to go,
Thats why I'm here.

[ocornut]

Hello, thanks for the suggestions.
You can contribute with a Pull Request, or open an Issue, but Discussion should not be used for that as spelled out everywhere in the Discussion panel.

I have pushed fixes as 1c57dc2.

[Farioto]

I'm not sure how to do that, I tried commit on Visual Studio and nothing went through,
and submitting a pull wasn't showing anything, the create pull request button was greyed out for me,
I wasn't sure how to open an issue, it just looked like a lot to do,
sorry I'm very new to using visual studio to build C/C++ projects, and I'm new to submitting anything to GitHub.
and I'd like to support in any way I can,
these things need a ton of set up and if dependencies like this aren't working then it breaks builds..