MiniCap does have a feature -scrollcap- that enables user to cap a window by scrolling down.
However, for these windows that own two or more scroll-able objects, such as Windows Explorer, AFAIK, there is no such option to capture the specified object by passing the object's class name to MiniCap.
Is there a feature like this:
MiniCap.exe -save "E:\test.jpg" -scrollcapobj #
# should contain info of the destination window and control.