How to apply graphics in Microsoft Visual Studio C++ Express 2012?

Alternatively, if you just want to show pictures on the screen and you don't need fancy 3D wonder, you can use one of the many existing libraries or widget toolkits that make it much easier.

Or do all the drawing yourself, look in MSDN. One Example.

How do I reference the system.drawing namespace?

First you have to create a C++/CLR project that uses .NET framework -- it's called Windows Forms in c++/CLR. If you want to use standard c++ then you can't use System.Drawing. With standard C and C++ use win32 api functions and include windows.h