Examples: DirectX11: Extracted imgui_impl_dx11.* instead imgui_impl_dx11 and imgui_impl_win32

examples/imgui_impl_dx11.h

@@ -0,0 +1,21 @@
+// ImGui Win32 + DirectX11 binding
+
+// Implemented features:
+//  [X] User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+
+// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
+// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
+// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// https://github.com/ocornut/imgui
+
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+
+IMGUI_API bool        ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
+IMGUI_API void        ImGui_ImplDX11_Shutdown();
+IMGUI_API void        ImGui_ImplDX11_NewFrame();
+IMGUI_API void        ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
+
+// Use if you want to reset your rendering device without losing ImGui state.
+IMGUI_API void        ImGui_ImplDX11_InvalidateDeviceObjects();
+IMGUI_API bool        ImGui_ImplDX11_CreateDeviceObjects();