wxHelpInstance::LoadFile

Bool LoadFile(char *file = NULL)

If wxHelp (or Windows Help) is not running, runs wxHelp (or Windows Help), and loads the given file. If the filename is not supplied or is NULL, the file specified in Initialize is used. If wxHelp is already displaying the specified file, it will not be reloaded. This member function may be used before each display call in case the user has opened another file.