Selecting Whole Functions or Symbols
To select a whole function, struct, or other type of symbol, simply double-click in the selection bar area of a source file window. If you hold the mouse button down and drag, Source Insight will select whole functions or symbols as you drag.
You can also use the Select Symbol command to select the symbol that encloses the current text selection.
The Symbol Window (on the left of the source file window) also can be used to select whole symbols. Double-clicking on any entry in the list will select the symbol.