Method GetWindowScrollbarRect

include/imgui/imgui_widgets.cpp:973–986

Return scrollbar rectangle, must only be called for corresponding axis if window->ScrollbarX/Y is set.

// Return scrollbar rectangle, must only be called for corresponding axis if window->ScrollbarX/Y is set.
ImRect ImGui::GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis)
{
    ImGuiContext& g = *GImGui;
    const ImRect outer_rect = window->Rect();
    const ImRect inner_rect = window->InnerRect;
    const float scrollbar_size = window->ScrollbarSizes[axis ^ 1]; // (ScrollbarSizes.x = width of Y scrollbar; ScrollbarSizes.y = height of X scrollbar)
    IM_ASSERT(scrollbar_size >= 0.0f);
    const float border_size = IM_ROUND(window->WindowBorderSize * 0.5f);
    const float border_top = (window->Flags & ImGuiWindowFlags_MenuBar) ? IM_ROUND(g.Style.FrameBorderSize * 0.5f) : (window->Flags & ImGuiWindowFlags_NoTitleBar) ? border_size : 0;
    if (axis == ImGuiAxis_X)
        return ImRect(inner_rect.Min.x + border_size, ImMax(outer_rect.Min.y + border_size, outer_rect.Max.y - border_size - scrollbar_size), inner_rect.Max.x - border_size, outer_rect.Max.y - border_size);
    else
        return ImRect(ImMax(outer_rect.Min.x, outer_rect.Max.x - border_size - scrollbar_size), inner_rect.Min.y + border_top, outer_rect.Max.x - border_size, inner_rect.Max.y - border_size);
}

void ImGui::ExtendHitBoxWhenNearViewportEdge(ImGuiWindow* window, ImRect* bb, float threshold, ImGuiAxis axis)
{