Finding a Symbol
This option locates the symbol given in symbol_name, opens that file, and positions the insertion point on the symbol. If the symbol can’t be found, Source Insight will give an error message. This is unlike specifying a symbol in place of a file name because this explicitly tells Source Insight that you are looking for a parsed symbol, not a file.
insight3 -f DoIdle
Synchronizing Project Files
This option updates all project files right away when Source Insight starts. It is exactly like using the Synchronize Files command on the Project menu.