
23
Help Facilities
This chapter addresses the general-usage Help facilities that apply to all XView packages.
The help mechanism is available for the application programmer to register help information
in response to user requests.
OPEN LOOK describes a help mechanism that enables the user to get help from anywhere in
the user interface. The user requests help using the Help key on the keyboard, or, if one does
not exist, the F1 function key. When this key is used, the window under the pointer receives
the ACTION_HELP event. In such cases, a Help window is displayed as shown in Figure 23-1.
Figure 23-1. A sample Help window
Note that when you request help on a menu or a menu item, this action will dismiss the menu.
This dismissal is required, since the Menu package must relinquish its pointer and keyboard
grabs in order for the help request to be processed.
Help Facilities
Help Facilities 557