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diff --git a/Client/ThirdParty/imgui/backends/imgui_impl_sdlrenderer.h b/Client/ThirdParty/imgui/backends/imgui_impl_sdlrenderer.h
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+// dear imgui: Renderer Backend for SDL_Renderer
+// (Requires: SDL 2.0.17+)
+
+// Important to understand: SDL_Renderer is an _optional_ component of SDL. We do not recommend you use SDL_Renderer
+// because it provide a rather limited API to the end-user. We provide this backend for the sake of completeness.
+// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
+
+// Implemented features:
+// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
+// Missing features:
+// [ ] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
+
+#pragma once
+#include "imgui.h" // IMGUI_IMPL_API
+
+struct SDL_Renderer;
+
+IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer);
+IMGUI_IMPL_API void ImGui_ImplSDLRenderer_Shutdown();
+IMGUI_IMPL_API void ImGui_ImplSDLRenderer_NewFrame();
+IMGUI_IMPL_API void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateFontsTexture();
+IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyFontsTexture();
+IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateDeviceObjects();
+IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyDeviceObjects();