816central 199102

8/16-Central The Journal for Apple II Programmers February 1991 ¢ Vers. 1.0 /ES.CENTRAL.9 102 In the root directory you'll find ABOUT.THIS.DISK, which is an editorial. It also includes a complete catalog listing of the disk. DLT8 and DLT16 also live in the root. If you're a IIgs user, launch DLT16 (with GS/OS active) and then you can read all the articles this month simply by clicking the mouse. 8-bit users should launch the program DLT8 from BASIC.SYSTEM (which is also on the disk), DLT8 was created by Karl Bunker. DLT16 was created by Jay Jennings using HyperStudio. /ES.CENTRAL.9102/Advertising For sale, for hire, etc., can be found in CLASSIFIEDS. If you’d _ information on running an ad, read ADVERTINFO for details. /ES.CENTRAL.9102/Apple.1I/Menus Albert Chin-a-young shows us how to implement pull-down menus in 8-bit assembly language (Merlin source). Next month Albert will introduce a windowing scheme, and the month after that, how to use the menus and windows in your own Micol Advanced BASIC programs. /ES.CENTRAL.9102/Apple.II/BTrees Stop doing those boring sequential searches on lists of items. Now you can implement a binary tree routine in your Applesoft programs just like real programmers do. Applesoft program, MD-BASIC source code, and article by Jay Jennings. /ES.CENTRAL.9102/Apple.ligs/Pics.3200 5200 color pictures are really cool - and with help from this article by Derek Young you'll be able to display them in your own programs. Includes Merlin source and a linkable module. /ES.CENTRAL.9102/Apple.ligs/Pics.3200/Extras A couple more 3200 color pictures live in this directory, as ‘Las a 5200 color pic viewer (done in Applesoft) and a program that turns GIF pictures into 3200 color pictures. If you find that program useful, send Jonah (the author) the shareware fee. /ES.CENTRAL.9 102/Apple. ligs/Resources Using resources in “non-standard” ways (like, other than for window templates and stuff) is easy, as Bryan Pietrzak shows us in this article. He also explains what the infamous SysErrs file is for that’s floating on your hard drive. /ES.CENTRAL.9102/Columns In WHATSNEW you'll read about the latest tools and utilities available for programmers. /ES.CENTRAL,9 102/Columns/HyperLab A column devoted to the technical aspects of any and all hypermedia programs that pop up. This month two HyperStudio XCMDs are presented, SetText and GetText. With these additions to your XCMD library you can do things never thought possible inside HyperStudio. /ES.CENTRAL.9102/Goodies/ The files in this subdirectory are extras. They're not really part of the magazine. We regularly search the online services for files that may be of interest to programmers and developers and then place them here. /ES.CENTRAL.9102/MiscInfo If you'd like to write for 8/16-Central, read the AUTHORGUIDE and ARTICLESWANTED files for special tips. We've also included a listing of previous 8/16 articles in BACK.ISSUES (and info on ordering back issues on disk). Read the CREATEDBY listing to see who helped put this issue together. /ES.CENTRAL.9102/Q.And.A Letters to us, answers from us. Write in with a suggestion, comment, or question and become famous. Online Tech-Talk is a collection of questions, answers, tips, and hints from the online services. 50'- ‘Of course there's.a secret screen in the frontend this month. | put that in instead of the usual typos and logic mistakes. | was going to tell you ‘how to get to it, but then it wouldn't be a secret, would it? Call me on the phone if you can't find it and 1 tell you where the button is...maybe.