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+// Dear ImGui: standalone example application for Allegro 5
+
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// On Windows, you can install Allegro5 using vcpkg:
+//   git clone https://github.com/Microsoft/vcpkg
+//   cd vcpkg
+//   bootstrap - vcpkg.bat
+//   vcpkg install allegro5 --triplet=x86-windows   ; for win32
+//   vcpkg install allegro5 --triplet=x64-windows   ; for win64
+//   vcpkg integrate install                        ; register include and libs in Visual Studio
+
+#include <stdint.h>
+#include <allegro5/allegro.h>
+#include <allegro5/allegro_primitives.h>
+#include "imgui.h"
+#include "imgui_impl_allegro5.h"
+
+int main(int, char**)
+{
+    // Setup Allegro
+    al_init();
+    al_install_keyboard();
+    al_install_mouse();
+    al_init_primitives_addon();
+    al_set_new_display_flags(ALLEGRO_RESIZABLE);
+    ALLEGRO_DISPLAY* display = al_create_display(1280, 720);
+    al_set_window_title(display, "Dear ImGui Allegro 5 example");
+    ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue();
+    al_register_event_source(queue, al_get_display_event_source(display));
+    al_register_event_source(queue, al_get_keyboard_event_source());
+    al_register_event_source(queue, al_get_mouse_event_source());
+
+    // Setup Dear ImGui context
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+    //ImGui::StyleColorsLight();
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplAllegro5_Init(display);
+
+    // Load Fonts
+    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
+    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
+    //IM_ASSERT(font != nullptr);
+
+    bool show_demo_window = true;
+    bool show_another_window = false;
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    // Main loop
+    bool running = true;
+    while (running)
+    {
+        // Poll and handle events (inputs, window resize, etc.)
+        // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+        // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+        // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+        // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+        ALLEGRO_EVENT ev;
+        while (al_get_next_event(queue, &ev))
+        {
+            ImGui_ImplAllegro5_ProcessEvent(&ev);
+            if (ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
+                running = false;
+            if (ev.type == ALLEGRO_EVENT_DISPLAY_RESIZE)
+            {
+                ImGui_ImplAllegro5_InvalidateDeviceObjects();
+                al_acknowledge_resize(display);
+                ImGui_ImplAllegro5_CreateDeviceObjects();
+            }
+        }
+
+        // Start the Dear ImGui frame
+        ImGui_ImplAllegro5_NewFrame();
+        ImGui::NewFrame();
+
+        // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
+        if (show_demo_window)
+            ImGui::ShowDemoWindow(&show_demo_window);
+
+        // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
+        {
+            static float f = 0.0f;
+            static int counter = 0;
+
+            ImGui::Begin("Hello, world!");                          // Create a window called "Hello, world!" and append into it.
+
+            ImGui::Text("This is some useful text.");               // Display some text (you can use a format strings too)
+            ImGui::Checkbox("Demo Window", &show_demo_window);      // Edit bools storing our window open/close state
+            ImGui::Checkbox("Another Window", &show_another_window);
+
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float using a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
+
+            if (ImGui::Button("Button"))                            // Buttons return true when clicked (most widgets return true when edited/activated)
+                counter++;
+            ImGui::SameLine();
+            ImGui::Text("counter = %d", counter);
+
+            ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+            ImGui::End();
+        }
+
+        // 3. Show another simple window.
+        if (show_another_window)
+        {
+            ImGui::Begin("Another Window", &show_another_window);   // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
+            ImGui::Text("Hello from another window!");
+            if (ImGui::Button("Close Me"))
+                show_another_window = false;
+            ImGui::End();
+        }
+
+        // Rendering
+        ImGui::Render();
+        al_clear_to_color(al_map_rgba_f(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w));
+        ImGui_ImplAllegro5_RenderDrawData(ImGui::GetDrawData());
+        al_flip_display();
+    }
+
+    // Cleanup
+    ImGui_ImplAllegro5_Shutdown();
+    ImGui::DestroyContext();
+    al_destroy_event_queue(queue);
+    al_destroy_display(display);
+
+    return 0;
+}