What architecture should i use to build cross platform application in Visual Studio?

You can use Visual Studio to build shared libraries of standard C++ code for Classic Windows applications, Universal Windows apps, iOS, and Android platforms. You can build native apps for Windows and Android platforms using only Visual C++ and third-party tools integrated into Visual Studio. If you have a Mac computer, you can use Visual Studio to create and debug C++ code for iOS apps that are built and deployed on your Mac.