Win32 Splitter Control

Question

Of all the different controls that there are for Win32, is there any basic, lightweight Splitter/Splitcontainer control available (meaning one or two C/C++ files

Answer 1

There's a native splitter in Win32, it's basically just transform mouse icon to IDC_SIZENS in this example, and tracking mouse movement and then resizing the control based on mouse movement.

See here: Split Window using Win32 API