Method ImageButton

lib/imgui/imgui_widgets.cpp:969–1003

frame_padding < 0: uses FramePadding from style (default) frame_padding = 0: no framing frame_padding > 0: set framing size The color used are the button colors.

// frame_padding > 0: set framing size
// The color used are the button colors.
bool ImGui::ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, int frame_padding, const ImVec4& bg_col, const ImVec4& tint_col)
{
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return false;

    ImGuiContext& g = *GImGui;
    const ImGuiStyle& style = g.Style;

    // Default to using texture ID as ID. User can still push string/integer prefixes.
    // We could hash the size/uv to create a unique ID but that would prevent the user from animating UV.
    PushID((void*)(intptr_t)user_texture_id);
    const ImGuiID id = window->GetID("#image");
    PopID();

    const ImVec2 padding = (frame_padding >= 0) ? ImVec2((float)frame_padding, (float)frame_padding) : style.FramePadding;
    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size + padding * 2);
    const ImRect image_bb(window->DC.CursorPos + padding, window->DC.CursorPos + padding + size);
    ItemSize(bb);
    if (!ItemAdd(bb, id))
        return false;

    bool hovered, held;
    bool pressed = ButtonBehavior(bb, id, &hovered, &held);

    // Render
    const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
    RenderNavHighlight(bb, id);
    RenderFrame(bb.Min, bb.Max, col, true, ImClamp((float)ImMin(padding.x, padding.y), 0.0f, style.FrameRounding));
    if (bg_col.w > 0.0f)
        window->DrawList->AddRectFilled(image_bb.Min, image_bb.Max, GetColorU32(bg_col));
    window->DrawList->AddImage(user_texture_id, image_bb.Min, image_bb.Max, uv0, uv1, GetColorU32(tint_col));

    return pressed;
}

bool ImGui::Checkbox(const char* label, bool* v)
{