Method RenderMouseCursor

imgui_tiny_app/imgui/imgui.cpp:4106–4138

}

void ImGui::RenderMouseCursor(ImVec2 base_pos, float base_scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
{
    ImGuiContext& g = *GImGui;
    if (mouse_cursor <= ImGuiMouseCursor_None || mouse_cursor >= ImGuiMouseCursor_COUNT) // We intentionally accept out of bound values.
        mouse_cursor = ImGuiMouseCursor_Arrow;
    ImFontAtlas* font_atlas = g.DrawListSharedData.FontAtlas;
    for (ImGuiViewportP* viewport : g.Viewports)
    {
        // We scale cursor with current viewport/monitor, however Windows 10 for its own hardware cursor seems to be using a different scale factor.
        ImVec2 offset, size, uv[4];
        if (!ImFontAtlasGetMouseCursorTexData(font_atlas, mouse_cursor, &offset, &size, &uv[0], &uv[2]))
            continue;
        const ImVec2 pos = base_pos - offset;
        const float scale = base_scale * viewport->DpiScale;
        if (!viewport->GetMainRect().Overlaps(ImRect(pos, pos + ImVec2(size.x + 2, size.y + 2) * scale)))
            continue;
        ImDrawList* draw_list = GetForegroundDrawList(viewport);
        ImTextureRef tex_ref = font_atlas->TexRef;
        draw_list->PushTexture(tex_ref);
        draw_list->AddImage(tex_ref, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
        draw_list->AddImage(tex_ref, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
        draw_list->AddImage(tex_ref, pos,                        pos + size * scale,                  uv[2], uv[3], col_border);
        draw_list->AddImage(tex_ref, pos,                        pos + size * scale,                  uv[0], uv[1], col_fill);
        if (mouse_cursor == ImGuiMouseCursor_Wait || mouse_cursor == ImGuiMouseCursor_Progress)
        {
            float a_min = ImFmod((float)g.Time * 5.0f, 2.0f * IM_PI);
            float a_max = a_min + IM_PI * 1.65f;
            draw_list->PathArcTo(pos + ImVec2(14, -1) * scale, 6.0f * scale, a_min, a_max);
            draw_list->PathStroke(col_fill, ImDrawFlags_None, 3.0f * scale);
        }
        draw_list->PopTexture();
    }
}

//-----------------------------------------------------------------------------
// [SECTION] INITIALIZATION, SHUTDOWN