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

Notion 2.1.3 - A unified workspace for m...
Notion is the unified workspace for modern teams. Features: Integration with Slack Documents Wikis Tasks More improvements to editing Browse through a page’s images from one place Choose a type... Read more
Cocktail 15.3.7 - General maintenance an...
Cocktail is a general purpose utility for macOS that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
Dropbox 158.4.4564 - 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
WhatsApp 2.2236.10 - Desktop client for...
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
VOX 3.5.2 - Music player that supports m...
VOX just sounds better! The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features and support for all audio formats you should ever need.... Read more
TeamViewer 15.34.4 - Establish remote co...
TeamViewer gives you remote control of any computer or Mac over the Internet within seconds, or can be used for online meetings. Find out why more than 200 million users trust TeamViewer! Free for... Read more
ClamXAV 3.5 - Virus checker based on Cla...
ClamXAV is a popular virus checker for OS X. Time to take control ClamXAV keeps threats at bay and puts you firmly in charge of your Mac’s security. Scan a specific file or your entire hard drive.... Read more
Ableton Live 11.2 - Record music using d...
Ableton Live lets you create and record music on your Mac. Use digital instruments, pre-recorded sounds, and sampled loops to arrange, produce, and perform your music like never before. Ableton Live... Read more
Viber 18.5.0 - Send messages and make fr...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device, so... Read more
CrossOver 22.0.1 - Run Windows apps on y...
CrossOver can get your Windows productivity applications and PC games up and running on your Mac quickly and easily. CrossOver runs the Windows software that you need on Mac at home, in the office,... Read more

Latest Forum Discussions

See All

TouchArcade Game of the Week: ‘Tallowmer...
With its pre-determined launch date of September 30th it didn’t quite make it in time for our weekly round-up of new game releases, but darn it, I just don’t care. I’m not letting that technicality keep me from picking Tallowmere 2 as our Game of... | Read more »
SwitchArcade Round-Up: Reviews Featuring...
Hello gentle readers, and welcome to the SwitchArcade Round-Up for September 30th, 2022. In today’s article, our pal Mikhail has another review for us. Gosh, that guy needs a day off! He’s taking a look at Let’s Build a Zoo, and it’s not exactly the... | Read more »
Seven Knights 2 recieves global update i...
Netmarble has announced the latest global update for mobile role-playing game Seven Knights 2. The update will bring brand new characters, some very rewarding events, and reworks to a few old favourite heroes. [Read more] | Read more »
‘GRIS+’ Is This Week’s New Apple Arcade...
Nomada Studio and Devolver Digital’s brilliant GRIS+ () has joined Apple Arcade today as an App Store Great. If you’ve not played it yet, GRIS debuted on PC and Nintendo Switch before seeing PS4 and mobile releases later on. I reviewed the iOS... | Read more »
SwitchArcade Round-Up: Reviews Featuring...
Hello gentle readers, and welcome to the SwitchArcade Round-Up for September 29th, 2022. In today’s article, we have a bunch of new releases to check out with the spearhead being The Elder Scrolls V: Skyrim Anniversary Edition. There’s a little here... | Read more »
‘Residual’ Controller Fix Update Release...
A few weeks back developer OrangePixel released their newest game on mobile called Residual. This is a roguelike survival game where you play as a pilot who crash lands on a procedurally generated planet, filled with all sorts of crazy creatures and... | Read more »
‘Queen’s Wish 2: The Tormentor’ Launchin...
We learned back in July that Spiderweb Software’s latest game Queen’s Wish 2: The Tormentor would be heading to desktop platforms in August, which is exactly what happened, and at that time we were guessing that the iOS version of the game would... | Read more »
‘Kingdom Rush Vengeance’ Primal Ravage U...
Ironhide Game Studio’s Kingdom Rush Vengeance ($4.99) has gotten quite a few updates over the years on iOS, Android, and PC. | Read more »
Interactive Film The Gallery screens at...
The FMV/interactive film hybrid video game genre has been around for a while but doesn’t seem to have that many games out there, but they just might get some more exposure as The Gallery has landed a spot in the Dinar Film Festival 2022. [Read... | Read more »
Terraria’s Massive Labor of Love Update...
Re-Logic’s action platforming sandbox game Terraria ($4.99) has just been updated on mobile and console platforms with its newest major update titled the ‘Labor of Love’ update. | Read more »

Price Scanner via MacPrices.net

Apple has M1 Mac minis in stock again startin...
Apple has restocked a full line of M1-powered Mac minis available in their Certified Refurbished section starting at only $589 and up to $140 off MSRP. Each mini comes with Apple’s one-year warranty... Read more
13″ M1 MacBook Airs with 16GB of RAM availabl...
Apple has 13″ M1 MacBook Airs (8-Core CPU/7-Core GPU) in stock today with 16GB of RAM for $190 off MSRP, Certified Refurbished. Apple includes a standard one-year warranty with these models, each... Read more
Update: 13-inch Apple M2 MacBook Airs now on...
Amazon has 13″ MacBook Airs with M2 CPUs in stock today and on sale for $150 off MSRP. Shipping is free. Their prices are now $150 off Apple’s MSRP, and they are the lowest prices available for these... Read more
Save $240 on a 14″ 8-core CPU M1 Pro MacBook...
Apple has the 14″ M1 Pro MacBook Pro with 32GB of RAM and a 512GB SSD (Space Gray) in stock for $2159, Certified Refurbished. Regular price for this configuration is $2399, so their savings amounts... Read more
Save $170 on this 13″ M2 MacBook Pro with 16G...
Apple has 13″ M2 MacBook Pros with 16GB of RAM and 512GB SSDs in stock today for $170 off MSRP ($1529), Certified Refurbished. These are the cheapest 13″ M2 MacBook Pros with this configuration... Read more
This Apple retailer is offering a $350 discou...
Apple retailer Expercom is offering a $350 instant discount on select upgraded 16″ Apple MacBook Pros through October 4, 2022. Shipping is free. Their sale price applies to the following... Read more
Clearance 27″ 5K Apple iMacs are on sale star...
Other World Computing has dropped prices on Apple refurbished, factory-sealed, recently-discontinued 27″ 5K iMacs with models now on sale for up to $950 off Apple’s MSRP, starting at only $849. Their... Read more
Get a new Mac for up to $400 off MSRP at Appl...
Need a new Apple Mac for school? Whether you’re a student, teacher, or staff member, you can use your .edu email address when ordering at Apple Education to take up to $400 off the price of a new Mac... Read more
13-inch Apple MacBook Airs with M2 processors...
Amazon has 13″ MacBook Airs with M2 CPUs in stock today and on sale for $1099. Shipping is free. Their prices are $100 off Apple’s MSRP, and they are the lowest prices available for M2-powered Macs... Read more
AR Glasses That Work With Apple’s Hardware? T...
NEWS – Lenovo has created quite the spectacle(s) with its latest product. “Apple Glass” — the purported name of Apple’s forthcoming AR glasses — is not expected to be released until 2025 (at the... Read more

Jobs Board

*Apple* Electronic Repair Technician - PlanI...
…a highly motivated individual to join our Production Department as an Apple Electronic Repair Technician. The computer repair technician will diagnose, assemble, Read more
( *Apple* ) Production Designer/Artist - TEKs...
…Art Ops team supports production, asset management, quality control, and global publishing for Apple Media Products, like Apple Music. The Art Ops team is Read more
Operations Associate - *Apple* Blossom Mall...
Operations Associate - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Read more
Cashier - *Apple* Blossom Mall - JCPenney (...
Cashier - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Blossom Mall Read more
Sephora Beauty Advisor - *Apple* Blossom Ma...
Sephora Beauty Advisor - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.