First, to cycle between source code files in CVI IDE, just use Ctrl-Tab;

Second, if you forget what a function’s complete name, just write a few letters that you are sure of it, then press Ctrl-P. There will be a function name list dialog which includes the letters you typed, just choose the function you want from the list;

Third, right-click anything in source code and choose “Go to Definition”, or use Ctrl-I, you can see where the variables are declared;

Fourth, you can make the project and library trees to auto hide by select menu: Options > Environment > Auto hide Project and Library Trees;

Fifth, there is a “Programmers ToolBox” shipped with LabWindows/CVI which can be used to manipulate sting and filename, you can find it in <cvidir>\toolslib\toolbox\toolbox.fp.

With them, you can make your CVI-based development much easier!