TweetFollow Us on Twitter

HyperCom
Volume Number:7
Issue Number:6
Column Tag:Tools of the Trade

HyperCom: HC 2.0 Networking

By Dave Kelly, MacTutor Editorial Board

HyperCom™: HyperCard 2.0 Network

Communications the easy way!

HyperCard has invaded the AppleTalk network with HyperCom™ 2.0 from GAVA Corporation. HyperCom is so easy to use that it seems like a natural part of HyperTalk. In fact, HyperCom is a set of extendable XCMDs and XFCNs that take care of all the details of network communications. All that’s left for you is to develop your own HyperTalk scripts to create network software for nearly any purpose.

The best thing about HyperCom is how much fun you can have with it. Programming with HyperCom is not a drudgery; it doesn’t leave you with hours trying to figure how to get it to work. It’s simplicity is the key. There is only one XCMD that is used to communicate with other HyperCom users over AppleTalk.

HyperCard 2.0’s ability to open multiple windows at the same time makes it possible to use HyperCom’s XCMDs and XFCNs without moving them to your stack. You can set up your stack to include the HyperCom stack in the current inheritance path by using the HyperTalk command:

start using stack HyperCom

This statement allows you to access handlers in the HyperCom stack without having to modify your Home stack or your copy of HyperCard.

HyperCom has one command, “Tell”. “Tell” has three special forms that can be used to find the names of other registered HyperCom users. 1) tell who puts a delimited list of all HyperCom users on the network into “the result”. Your scripts can evaluate the list in “the result” to decide who you want to send your message to. 2) tell whom shows a pop-up menu with all the HyperCom users listed. It returns the selected user name in “the result”. 3) tell whol brings up a dialog box with a list of all HyperCom users on the network. One or more users may be selected and returned in “the result”.

Once you know who you will be sending the message to, you use “Tell” and the name (or names) of the users and send your message or messages. In my example, I use tell whol to ask for a network user.

 tell whol,,”Set clock of which Mac:”

Then I use the following lines to tell the user to execute the XCMD “SetTimeDate” installed in the user’s stack.

--1

 put the result into them
 put the seconds into standardtime
 tell them, “SetTimeDate”, standardtime

The purpose of my example is to use HyperCom communications to synchronize the clock on every computer on the network with a single computer. Since HyperCard doesn’t have a command to set the clock, I made one. The Pascal source code is included at the end of this column. After the XCMD is compiled and installed into a stack, clicking on a single button brings up the user list to select which users’ clock you want to set. Then the script gets the time from the HyperTalk seconds function and sends it to the user with the command to use the SetTimeDate XCMD to set the clock.

Each copy of HyperCom is serialized and set up for a specific number of users. The basic HyperCom package supports 2 users, but there is technically no limit on the number of users. HyperCom has been used at sites with as many as 600 users over several zones. Some schools have 40-50 users on a single zone. HyperCom does not get slowed down with more users. Yet, it makes sense that if the implementation uses a single server, where the server seeks information and sends it back to the requesting station, that the speed would be affected. Of course, then, the speed is dependent on how long it takes to process each query. Database types of applications with 10-20 users are not uncommon. HyperCom does queue up messages, and allows long scripts to execute new messages to be executed by calling “Tell” in the body of the handler. Because the limitation with HyperCom is not with the network traffic, speed problems can be solved by distributing the data or processing on several machines, or using faster processors.

GAVA also provides other XCMDs and XFCNs that can be used to extend the capabilities of HyperCom. These are very useful efficiency savers. For example, with the sendResource XCMD, the SetTimeDate XCMD could be sent to the user, used to set the clock, then deleted when done. I don’t have the sendResource XCMD so I couldn’t try it. The sendFileXCMD sends files over the network. The sendSound XCMD sends a sound to be played by the receiving machine. Other commands include sendCard, sendClipboard, sendScreen and the question XFCN to evaluate expressions on a remote Macintosh.

The manual for HyperCom is brief (29 pages) and get right to the point, but since the commands are simple not much explanation is required. It does a good job in telling what the tell command does, but it leaves out a few minor details. For example, it didn’t say what to expect if the user didn’t select any users, but used the cancel button instead. Since HyperCom is simple to use, these omissions can be figured out without too much trouble.

There are some sample stacks included with HyperCom. On of the examples is a network checkers game. My son really loved that one. The examples were designed to give you some ideas of what HyperCom can do.

HyperCom is ideally suited for anyone that needs network communication capability in HyperCard. Happy Networking!

HyperCom™ is available from:

GAVA Corporation

1001 4th Ave Plaza, Suite 3200

Seattle, WA. 98154

Phone: 800-767-0647 or 206-223-4282

FAX 206-223-0653

AppleLink GAVA

InterNet: GAVA@applelink.apple.com

CompuServe: 76174,221

GENIE: GAVA

Prices:

HyperCom 2.0 (for 2 users) $99.95

HyperCom 2.0 with HyperCard 2.0 $129.95

Additional license for HyperCom $50.00

Zone license for HyperCom $499.95

sendFile XCMD $35.00, sendSound XCMD $35.00

sendCard XCMD $35.00, sendClipboard $35.00

sendScreen XCMD $35.00, question XFCN $35.00

sendResource XCMD $35.00

Requires: a Macintosh computer with System 6.0.5 or newer, 1MB RAM and a hard disk.

SOFTWARE UPDATES

Be sure to check for upgrades to your applications. Many of these are already available on AppleLink, America On-Line and other services. Some of the new versions which have been available for some time now are: Now Utilities version 2.0.3, Suitcase II version 1.2.9, and QUED/M 2.09.

{ HyperCard SetTimeDate XCMD}
{ by Dave Kelly                    }
unit SetTimeDateUnit;
{ This project handles the SetTimeDate command }
interface
 uses
{include the HyperCard interfaces in the XFCN/CMD}
 HyperXCmd;
 procedure main (paramPtr: XCmdPtr);
{ the entry point for the XCMD/XFCN }
implementation
 procedure main;
 procedure Fail (errMsg: Str255);
{ return a given error message to HyperCard }
 begin
 paramPtr^.returnValue := PasToZero(paramPtr, errMsg);
 {Set return value of the paramBlock to given message. }
 exit(main); {exit the routine }
 end;
 procedure Setthetime (paramPtr: XCmdPtr);
 var
 str: str255;
 TheTimeDate: longint;
 Error: OSErr;
 begin
 if (paramPtr^.paramCount <> 1) then
 Fail(‘%bad parameters’);
 ZeroToPas(paramPtr, paramPtr^.params[1]^, str);
{ convert the location to a string }
 TheTimeDate := StrToNum(paramPtr, str);
 { and thence to a longint }
 Error := SetDateTime(TheTimeDate);
 { if the handle is empty, then return an error}
 if Error <> noErr then
 Fail(‘DateTime not changed!’);
 end;
 begin
 Setthetime(paramPtr);
{entry point; call the Setthetime routine}
 end;
end.

STACK SCRIPT:
-- This product is for licensed HyperCom™ users only
on openstack
  global userchecktime
  start using stack HyperCom
  tell who
  put the result into card field “HyperCom Users”
  put the seconds into userchecktime
  pass openstack
end openstack
on startstack
  global userchecktime
  start using stack HyperCom
  tell who
  put the result into card field “HyperCom Users”
  put the seconds into userchecktime
  pass startstack
end startstack
on idle
  global userchecktime
  put (the seconds - userchecktime) into elapsedtime
  if (elapsedtime>=15) then
    tell who
    put the result into card field “HyperCom Users”
    put the seconds into userchecktime
  end if
  put the long time into card field “Time”
  put the long date into card field “Date”
  pass idle
end idle

CARD BUTTON:
on mouseup
  tell whol,,”Set clock of which Mac:”
  if the first line of the result is empty then exit mouseup
  put the result into them
  put the seconds into standardtime
  tell them, “SetTimeDate”, standardtime
end mouseup

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Dropbox 193.4.5594 - Cloud backup and sy...
Dropbox is a file hosting service that provides cloud storage, file synchronization, personal cloud, and client software. It is a modern workspace that allows you to get to all of your files, manage... Read more
Google Chrome 122.0.6261.57 - Modern and...
Google Chrome is a Web browser by Google, created to be a modern platform for Web pages and applications. It utilizes very fast loading of Web pages and has a V8 engine, which is a custom built... Read more
Skype 8.113.0.210 - Voice-over-internet...
Skype is a telecommunications app that provides HD video calls, instant messaging, calling to any phone number or landline, and Skype for Business for productive cooperation on the projects. This... Read more
Tor Browser 13.0.10 - Anonymize Web brow...
Using Tor Browser you can protect yourself against tracking, surveillance, and censorship. Tor was originally designed, implemented, and deployed as a third-generation onion-routing project of the U.... Read more
Deeper 3.0.4 - Enable hidden features in...
Deeper is a personalization utility for macOS which allows you to enable and disable the hidden functions of the Finder, Dock, QuickTime, Safari, iTunes, login window, Spotlight, and many of Apple's... Read more
OnyX 4.5.5 - Maintenance and optimizatio...
OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the... Read more
Hopper Disassembler 5.14.1 - Binary disa...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
WhatsApp 24.3.78 - Desktop client for Wh...
WhatsApp is the desktop client for WhatsApp Messenger, a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for... Read more
War Thunder 2.33.0.135 - Multiplayer war...
In War Thunder, aircraft, attack helicopters, ground forces and naval ships collaborate in realistic competitive battles. You can choose from over 1,500 vehicles and an extensive variety of combat... Read more
Iridient Developer 4.2 - Powerful image-...
Iridient Developer (was RAW Developer) is a powerful image-conversion application designed specifically for OS X. Iridient Developer gives advanced photographers total control over every aspect of... Read more

Latest Forum Discussions

See All

A Legitimate Massage Parlor, I Swear – T...
In this week’s Episode of The TouchArcade Show we talk about some of the major new releases on mobile this week including Warframe, we go over all the major news that came out from the Nintendo Direct Partner Showcase on Wednesday, we read our one... | Read more »
TouchArcade Game of the Week: ‘Rainbow S...
I feel like I am in a fever dream right now. What is this game that I’m playing? It’s a Rainbow Six game? But it’s all cutesy, and cartoony, and also kind of psychedelic? How is this a real thing? Well, it’s no fever dream, it is indeed a real thing... | Read more »
SwitchArcade Round-Up: ‘Promenade’, ‘Cho...
Hello gentle readers, and welcome to the SwitchArcade Round-Up for February 23rd, 2024. It’s Friday, so we have to check out the remaining releases of the week. Not so many big ones today, but a healthy crop nonetheless. After summarizing all the... | Read more »
Steam Deck Weekly: Gundam Breaker 4 and...
Welcome to this week’s slightly shorter edition of the Steam Deck Weekly. I was a bit unwell this week so no reviews in this edition, but there is a lot of news and new Steam Deck Verified and Playable games to catch up on. I have something special... | Read more »
The 10 Best Run-And-Gun Games for Ninten...
The year 2024 is a rare one, because it is a year with a brand-new Contra game. Contra: Operation Galuga might be the freshest face on the block when it comes to Nintendo Switch run-and-gun action games, but it’s hardly fighting that war alone.... | Read more »
Version 1.4 of Reverse: 1999 will be lan...
Free up your diary for February 29th, as Bluepoch has announced the impending release of the award-winning Reverse: 1999s Version 1.4 update. The Prisoner in the Cave is an Ancient Greece-themed update with new recruits, gameplay modes, and plenty... | Read more »
Premium Mobile RPG ‘Ex Astris’ From ‘Ark...
Arknights developer Hypergryph’s premium RPG Ex Astris () recently had its release date confirmed, and we finally have an extended gameplay showcase. | Read more »
Apple Arcade Weekly Round-Up: Updates fo...
Following yesterday’s big Hello Kitty Island Adventure update, a few more notable game updates and events have gone live on Apple Arcade. Cypher 007 () has gotten its first content update in a few months taking you to Egypt for five new levels... | Read more »
‘Thunder Ray’ and ‘Hime’s Quest’ Are Now...
Crunchyroll has pushed two new games into the Crunchyroll Game Vault including Purple Tree Studio’s Thunder Ray which was already on iOS before as a premium release. Shaun even reviewed it last year. Read his review here. The second game is Poppy... | Read more »
Adorable Kitty-Collector Sequel ‘Neko At...
Ya’ll. This October will mark the ten-year anniversary of Hit Point launching Neko Atsume, the adorable kitty collecting sim that has become a runaway success and essentially created a sub-genre of cozy pet-collecting life sim games. Sure, the... | Read more »

Price Scanner via MacPrices.net

16-inch M3 Max MacBook Pro on sale for $300 o...
Amazon is offering a $300 instant discount on one of Apple’s 16″ M3 Max MacBook Pros today. Shipping is free: – 16″ M3 Max MacBook Pros (36GB/1TB/Space Black): $3199, $300 off MSRP Their price is the... Read more
Apple M2 Mac minis on sale for $100 off MSRP...
B&H Photo has Apple’s M2-powered Mac minis in stock and on sale for $100 off MSRP this weekend with prices available starting at $499. Free 1-2 day shipping is available to most US addresses: –... Read more
Apple Watch SE on sale for $50 off MSRP this...
Best Buy has all Apple Watch SE models on sale this weekend for $50 off MSRP on their online store. Sale prices available for online orders only, in-store prices may vary. Order online, and choose... Read more
Deal Alert! Apple 15-inch M2 MacBook Airs on...
Looking for the lowest sale price on a new 15″ M2 MacBook Air? Best Buy has Apple 15″ MacBook Airs with M2 CPUs in stock and on sale today for $300 off MSRP on their online store. Prices valid for... Read more
Amazon discounts iPad mini 6 models up to $12...
Amazon is offering Apple’s 8.3″ WiFi iPad minis for $100-$120 off MSRP, including free shipping, for a limited time. Prices start at $399. Amazon’s prices are among the lowest currently available for... Read more
Apple AirPods Pro with USB-C discounted to $1...
Walmart has Apple’s 2023 AirPods Pro with USB-C in stock and on sale for $199.99 on their online store. Their price is $50 off MSRP, and it’s currently one the lowest prices available for new AirPods... Read more
Apple has 14-inch M3 MacBook Pro with 16GB of...
Apple has 14″ M3 MacBook Pros with 16GB of RAM, Certified Refurbished, available for $270-$300 off MSRP. Each model features a new outer case, shipping is free, and an Apple 1-year warranty is... Read more
Save $318-$432 on 16-inch M3 Max MacBook Pros...
Apple retailer Expercom has 16″ M3 Max MacBook Pros on sale for $318-$432 off MSRP when bundled with a 3-year AppleCare+ Protection Plan. Discounts are available for Silver models as well a Space... Read more
New today at Apple: 16-inch M3 Pro/M3 Max Mac...
Apple is now offering 16″ M3 Pro and M3 Max MacBook Pros, Certified Refurbished, starting at $2119 and ranging up to $530 off MSRP. Each model features a new outer case, shipping is free, and an... Read more
Apple is now offering $300-$480 discounts on...
Apple is now offering 14″ M3 Pro and M3 Max MacBook Pros, Certified Refurbished, starting at $1699 and ranging up to $480 off MSRP. Each model features a new outer case, shipping is free, and an... Read more

Jobs Board

Part-time *Apple* and Peach Research Assist...
…and minimum qualifications: + Assist with planting, pruning, and harvesting of apple and peach trees + Conduct regular maintenance tasks to ensure optimal Read more
Housekeeper, *Apple* Valley Villa - Cassia...
Apple Valley Villa, part of a senior living community, is hiring entry-level Full-Time Housekeepers to join our team! We will train you for this position and offer a Read more
Sublease Associate Optometrist- *Apple* Val...
Sublease Associate Optometrist- Apple Valley, CA- Target Optical Date: Feb 22, 2024 Brand: Target Optical Location: Apple Valley, CA, US, 92307 **Requisition Read more
Sublease Associate Optometrist- *Apple* Val...
Sublease Associate Optometrist- Apple Valley, CA- Target Optical Date: Jan 24, 2024 Brand: Target Optical Location: Apple Valley, CA, US, 92307 **Requisition Read more
Housekeeper, *Apple* Valley Village - Cassi...
Apple Valley Village Health Care Center, a senior care campus, is hiring a Part-Time Housekeeper to join our team! We will train you for this position! In this role, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.