main.obj : error LNK2019: unresolved external symbol "long __cdecl InitWindow(struct HINSTANCE__ *,int)" (?InitWindow@@YAJPAUHINSTANCE__@@H@Z) referenced in function _wWinMain@16
main.obj : error LNK2019: unresolved external symbol "long __cdecl InitDevice(void)" (?InitDevice@@YAJXZ) referenced in function _wWinMain@16
main.obj : error LNK2019: unresolved external symbol "void __cdecl CleanupDevice(void)" (?CleanupDevice@@YAXXZ) referenced in function _wWinMain@16
main.obj : error LNK2019: unresolved external symbol "void __cdecl Render(void)" (?Render@@YAXXZ) referenced in function _wWinMain@16
MSVCRTD.lib(exe_main.obj) : error LNK2019: unresolved external symbol _main referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ)
D:\Csharp and Cpp\2020\Direct3DExample\Debug\Direct3DExample.exe : fatal error LNK1120: 5 unresolved externals
