Using Help in a Windows Application
Win32-based
applications can offer help to their users by using the WinHelp function to start Windows
Help and display topics in the application s help file. The WinHelp
function gives a Win32-based application complete access to the help file, as well
as to the menus and commands of Windows Help. Many applications use WinHelp
to implement context-sensitive help. Context-sensitive help enables users to
view topics about specific windows, menus, menu items, and control windows by
selecting the item with the keyboard or the mouse. For example, a user can
learn about the Open command on the File menu by selecting the command (using
the direction keys) and pressing the F1 key.