Build Error

[EinWilderRex]

Hey, use ImGui for now. I create a window and close with functions etc.

ImGui_ImplDX9_CreateDeviceObjects();
ImGui_ImplDX9_InvalidateDeviceObjects();
ImGui_ImplDX9_NewFrame();
ImGui_ImplWin32_NewFrame();
ImGui_ImplDX9_Shutdown();
ImGui_ImplWin32_Shutdown();

But get an error. Can someone help me with this?
Microsoft error: https://docs.microsoft.com/de-de/cpp/error-messages/tool-errors/linker-tools-error-lnk2001?f1url=%3FappId%3DDev16IDEF1%26l%3DDE-DE%26k%3Dk(LNK2001)%26rd%3Dtrue&view=msvc-170

[rokups]

You need to compile following files in your project as well:

• imgui.cpp
• imgui_demo.cpp
• imgui_draw.cpp
• imgui_tables.cpp
• imgui_widgets.cpp
• imgui_impl_win32.cpp
• imgui_impl_dx9.cpp