What is quick outline?
Before we answer that question, another question.
There is a limited space on your screen. However big the screen maybe, it’s still limited. Quick outline helps developer to get the outline of the source file quickly, and jump to needed point as fast as possible. A Real developer friendly feature. Developer does not need to do the boring scrolling down.
The keyboard shortcut to open it is
Control O. (This keyboard short-cut
will only work when you are editing a C/C++ file.)