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- Path: sparky!uunet!newsflash.concordia.ca!clyde.concordia.ca!altitude!vandry
- From: vandry@CAM.ORG (Phillip Vandry)
- Newsgroups: comp.sys.apple2
- Subject: Keyboard menus
- Message-ID: <C1Bt99.9JL@CAM.ORG>
- Date: 23 Jan 93 21:34:20 GMT
- Organization: Champlain Regional College, St-Lambert QC CANADA
- Lines: 45
-
- If you are currently writing or plan to write a desktop program that uses
- custom menus, read this, please!
-
- I am writing a utility which allows access to menus via the keyboard. It
- works automatically with all standard menus, but custom menus need a few
- (easy) modifications in order to work. I encourage you to make these
- modifications as they are easy to makeand will result in only about 50
- extra bytes of code. The result is well worth it.
-
- If you make the modifications, your program will still work without my
- utility, so you haven't got anything to lose!
-
- Here are the modifications you must make:
-
- -------
- How to make custom menus work from the keyboard:
-
- - The number of items in the menu must be stored as a word at offset $0C in
- the menu record. (as with standard menus)
- - The internal item numbers (not the Item ID numbers) must number from 0 up.
- - The highest (normally unused) byte of the defproc pointer (offset $09 in
- the menu record) must be equal to $55. This tells the keyboard menu select
- routine that your menu is compatible with it.
- - There is a new request which the defproc must support: $06 MGetMItemEnable.
- It works just like MGetMItemID except it must return TRUE is an item is
- enabled and FALSE if not.
- -------
-
- If you need help or sample source code, contact me.
-
- Thank you.
-
- -------
- Does anyone know of an NDA other than WriteIt that puts a menu bar in its
- window? I need to test my utility on bars other than the system one.
-
- The problem is that WriteIt handles keypresses itself instead of calling
- MenuKey, defeating my patched MenuKey. (Notice that when you select something
- from WriteIt's menus, the menu doesn't hilight!)
-
- ______________________________________________________________________
- |~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~~~~|
- | Phillip Vandry | Vandry@Cam.Org | II the future! | II 1993! |
- |________________|________________|________________|___________________|
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-