Difference between revisions of "83Plus:Hooks:9BB8"
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| − | [[Category:83Plus:Hooks:By_Name|Help Hook]] | + | [[Category:83Plus:Hooks:By_Name|Help Hook]] [[Category:83Plus:Hooks:By_Address|9BB8 - Help Hook]] |
| − | [[Category:83Plus:Hooks:By_Address|9BB8 - Help Hook]] | + | |
== Synopsis == | == Synopsis == | ||
'''Name:''' Help Hook | '''Name:''' Help Hook | ||
Revision as of 22:14, 29 March 2005
Synopsis
Name: Help Hook
Hook Pointer Block Address: 9BB8
Hook Enable BCALL: 504A
Hook Disable BCALL: 504D
Hook Call BCALL: (none known)
Hook Active Flag: 4, (iy + 36h)
This hook is called when a key is pressed at the Mode screen or in a system menu, as well as at Mode screen startup.
Using the Hook
These different values, passed in A, determine what the hook should do.
- 1: A key was pressed in a menu
- B = keycode
- 3: At the mode screen
- B = kMode at startup
- B = kApp when the Mode key is pressed
- B = keycode for other keys
Comments
This hook has been referred to as the Mode hook, but the only app to use it (Catalog Help) has nothing to do with the Mode screen.
