diff --git a/xo-imgui/example/ex4a/VulkanApp.cpp b/xo-imgui/example/ex4a/VulkanApp.cpp
index f9899402..0ec3a6c3 100644
--- a/xo-imgui/example/ex4a/VulkanApp.cpp
+++ b/xo-imgui/example/ex4a/VulkanApp.cpp
@@ -390,4 +390,43 @@ MinimalImGuiVulkan::create_descriptor_pool()
     }
 }
 
+void
+MinimalImGuiVulkan::init_imgui()
+{
+    // Setup Dear ImGui context
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplSDL2_InitForVulkan(window_);
+    ImGui_ImplVulkan_InitInfo init_info = {};
+    init_info.Instance        = instance_;
+    init_info.PhysicalDevice  = physical_device_;
+    init_info.Device          = device_;
+    init_info.QueueFamily     = graphics_queue_family_;
+    init_info.Queue           = graphics_queue_;
+    init_info.PipelineCache   = VK_NULL_HANDLE;
+    init_info.DescriptorPool  = descriptor_pool_;
+    init_info.RenderPass      = render_pass_;
+    init_info.Subpass         = 0;
+    init_info.MinImageCount   = MAX_FRAMES_IN_FLIGHT;
+    init_info.ImageCount      = static_cast<uint32_t>(swapchain_images_.size());
+    init_info.MSAASamples     = VK_SAMPLE_COUNT_1_BIT;
+    init_info.Allocator       = nullptr;
+    init_info.CheckVkResultFn = nullptr;
+    ImGui_ImplVulkan_Init(&init_info);
+    //ImGui_ImplVulkan_Init(&init_info, render_pass_);
+
+    // Upload Fonts
+    VkCommandBuffer command_buffer = beginSingleTimeCommands();
+    ImGui_ImplVulkan_CreateFontsTexture();
+    endSingleTimeCommands(command_buffer);
+
+    //ImGui_ImplVulkan_DestroyFontUploadObjects();
+}
+
 /* end VulkanApp.cpp */
diff --git a/xo-imgui/example/ex4a/VulkanApp.hpp b/xo-imgui/example/ex4a/VulkanApp.hpp
index 51527f24..77b431fc 100644
--- a/xo-imgui/example/ex4a/VulkanApp.hpp
+++ b/xo-imgui/example/ex4a/VulkanApp.hpp
@@ -90,42 +90,8 @@ private:
      */
     void create_descriptor_pool();
 
-    void init_imgui() {
-        // Setup Dear ImGui context
-        IMGUI_CHECKVERSION();
-        ImGui::CreateContext();
-        ImGuiIO& io = ImGui::GetIO(); (void)io;
-
-        // Setup Dear ImGui style
-        ImGui::StyleColorsDark();
-
-        // Setup Platform/Renderer backends
-        ImGui_ImplSDL2_InitForVulkan(window_);
-        ImGui_ImplVulkan_InitInfo init_info = {};
-        init_info.Instance        = instance_;
-        init_info.PhysicalDevice  = physical_device_;
-        init_info.Device          = device_;
-        init_info.QueueFamily     = graphics_queue_family_;
-        init_info.Queue           = graphics_queue_;
-        init_info.PipelineCache   = VK_NULL_HANDLE;
-        init_info.DescriptorPool  = descriptor_pool_;
-        init_info.RenderPass      = render_pass_;
-        init_info.Subpass         = 0;
-        init_info.MinImageCount   = MAX_FRAMES_IN_FLIGHT;
-        init_info.ImageCount      = static_cast<uint32_t>(swapchain_images_.size());
-        init_info.MSAASamples     = VK_SAMPLE_COUNT_1_BIT;
-        init_info.Allocator       = nullptr;
-        init_info.CheckVkResultFn = nullptr;
-        ImGui_ImplVulkan_Init(&init_info);
-        //ImGui_ImplVulkan_Init(&init_info, render_pass_);
-
-        // Upload Fonts
-        VkCommandBuffer command_buffer = beginSingleTimeCommands();
-        ImGui_ImplVulkan_CreateFontsTexture();
-        endSingleTimeCommands(command_buffer);
-
-        //ImGui_ImplVulkan_DestroyFontUploadObjects();
-    }
+    /* setup imgui "framework" */
+    void init_imgui();
 
     VkCommandBuffer beginSingleTimeCommands() {
         VkCommandBufferAllocateInfo allocInfo{};