Function GetBoxSelectState

include/imgui/imgui_internal.h:3445–3445

    IMGUI_API void          MultiSelectAddSetAll(ImGuiMultiSelectTempData* ms, bool selected);
    IMGUI_API void          MultiSelectAddSetRange(ImGuiMultiSelectTempData* ms, bool selected, int range_dir, ImGuiSelectionUserData first_item, ImGuiSelectionUserData last_item);
    inline ImGuiBoxSelectState*     GetBoxSelectState(ImGuiID id)   { ImGuiContext& g = *GImGui; return (id != 0 && g.BoxSelectState.ID == id && g.BoxSelectState.IsActive) ? &g.BoxSelectState : NULL; }
    inline ImGuiMultiSelectState*   GetMultiSelectState(ImGuiID id) { ImGuiContext& g = *GImGui; return g.MultiSelectStorage.GetByKey(id); }

    // Internal Columns API (this is not exposed because we will encourage transitioning to the Tables API)