TweetFollow Us on Twitter

Dec 89 Mousehole
Volume Number:5
Issue Number:12
Column Tag:Mousehole Report

Mousehole Report

By Rusty Hodge & Larry Nedry, Mousehole BBS

From: Willcox

Re: Print Manager Error

I solved my printing problem, but I do not fully understand why it now works. Maybe someone out their can explain. First, the problem was that sometime when printing (using a Mac IIcx only), the system would sometimes forget that a certain font was a LaserFont, and promptly started creating a bitmap for it. However, the screen font information was also lost, so this process eventually terminated in an error.

I tracked the problem down to a single call to “UseResFile” from which I had to load a specific private resource. I fixed the problem by modifying the code to:


Now, why does this work??? I have not found a warning in Inside Macintosh, and the error only occurs on my Mac IIcx, not on my Mac Plus.

From: Jmoreno

Re: Print Manager Error

What was happening is the call to UseResFile was removing the System from the list of open files to search for a resource. And that font was no longer found. The system adds each opened resource to the end of a list and then when you try to load a resource it starts at the end and backtracks looking through all of the open resource forks for the requested resource. So when you open a resource it gets a place in line, when you call UseResFile it gets put at the beginning and is set to be the FIRST resource to search (everything else is then gone from the resource list). Hope this helps you understand what is going on. BTW if you haven’t already I STRONGLY recommend that you buy Inside Mac Vol 1 to 5.

From: Inbox

Re: Var declaration

Sheeshh.... Here I go again..

Awright, I’m trying to create an array of the following size after VAR in my globals unit: myarray : array[1..7,1..300] of string[20]; but LSP says that it’s “unable to create blah..blah..blah on this level”. Now what is a body to do if using dynamic memory allocation means changing the whole program?? Is there some kind of a call I can make to perhaps increase the size of the applications stack beforehand?! But the globals’ unit gets compiled first so the instruction won’t get executed at that point...

Thanks for listening, _inBox_ (this should read _inTrouble_)

From: Jmoreno

Re: Var declaration

In the run options part of Think Pascal (formerly LSP) there is an option for setting both the stack (which is what you want) and the heap.

From: Tomt

Re: Var declaration

Dumb question but how in Pascal do I access the stuff in a handle. My problem is that I need to make an array of integers of size, say, 500 by 500. Now I tried array type of that size,without making any instances of it, but LSP wouldn’t let do that. So if I make a handle to the appropriately sized chunk of memory, how do I access the i,j the element. I’m sure its trivial, but I haven’t been able to figure it out. Thanks in advance for any help

From: Inbox

Re: Var declaration

Awright.. Methinks I got it.. Here’s the 500 by 500....

 myarray = array[1..500,1..500] of integer;
 myarrayptr = ^myarray;
 myarrayHandle = ^myarrayptr;
 THEarray : myarrayHandle;
 THEarray := myarrayHandle(NewHandle(SizeOf(myarray)));

That’s it. To access an element, do

myint := THEarray^^[i,j];  where i and j are integers, etc...

Set an element by THEarray^^[i,j] := myint;

Hope this helps. _inBox_

From: Jimm

Re: Var declaration

On page 447 of LSP 2.0 manual it says that data structures cannot exceed 32766 bytes. Your data structure is 22*7*300 or >42K.

From: Dhands

Re: Var declaration

The previous VAR declaration will work as stated, since the data structure allocated at compile time is only a 4 byte handle, not the >40k array. The array is later allocated dynamically at run-time.

For example:

        good : BigHandle; {4 byte handle to huge, >32k, data}
        bad  : ARRAY[1..40000] char;{>32k data won’t fit here}

The difference is that “good” has it’s data on the heap (via NewHandle) and is only limited in size by the available memory. Where as “bad” is pre-allocated space in global or local areas of the heap which is limited to 32k.

From: Shaper

Re: Printing Samples?

One more question, does anyone have any Pascal (preferably LSP) source code for printing to an ImageWriter - text only, no graphics necessary, I tried to use PrCtlCall() or whatever it’s called, but I don’t know how to set up a ptr to text, and also how do you set the HiWord and LoWord of a longint? I know you can GET it by doing aLongInt:=HiWord(bLongInt) or aLongInt:=LoWord(bLongInt) but you can’t do HiWord(bLongInt):=aLongInt...

From: Dhands

Re: Printing Samples?

Here’s a quick summary of draft printing using the print manager’s low level calls. The low level calls should not be used for “real” printing, but they are great for quick-n-dirty printing.


PrDrvrOpen;                          {open print driver}
PrCtlCall(iPrDevCtl,lPrReset,0,0);   {reset/init printer}
PrCtlCall(iPrIOCtl,LONGINT(@textBuf),count,0);{send some text}
PrCtlCall(iPrDevCtl,lPrLFSixth,0,0); {advance printer paper}
PrDrvrClose;                         {close print driver}
        textBuf : PACKED ARRAY [1..256] OF Char;
        str     :       Str255;

Since you must explicitly advance the paper you have to print one line at a time. To print a Str255 for example:


count := Length(str) {number of bytes to copy}
FOR i := 1 TO count DO
  textBuf[i] := str[i];{note: don’t copy over str[0] length byte}

From: Jmoreno

Re: Printing Samples?

1a) Why don’t you try using the regular printing process, it’s no big deal to open the port then open a page print a page, close the page then open another page if needed....

1b) To get a pointer to the text in a Str255 use

TextPtr:=@YourString[1]; { really need to make sure you have 1+ chars}

2a) to set the Hi&LoWord of a longInt use:

theInt^:= 12; { set the HiWord}
theInt:=Ptr(LongInt(theInt) + 2);
theInt^:= 60; { set the LowWord}

or Use a variable RECORD

From: Inbox

Re: Holy #$%^!!

What just happened is too weird to be true. I’ve had a folder with one of the LSP projects I was working on, and I made 2 copies of it by ctl-D (Duplicate). I put the two copies in different folders in other places of the tree. Over a period of a few months, I made changes to the original file, and replaced the old copies with new ones once in a while. But today I discovered that whenever I change a file (LSP project and its files) in one of the folders, they get changed in all of them. So, when I make some changes to the copy, save, and quit, the changes appear in the original source file as soon as I open it. However, when I changed the names of the files in one of the “copy” folders, removed the object code, and recompiled, the changes were gone and the old stuff was there unaltered. So one can assume that whenever the copy was opened, LSP really opened the original, and, when I saved the changes, they were saved to the original, and the copy was never altered. Is this a major access path screw-up on the LSP part or what? I’ve never noticed anything like that before. I rebuilt the Desktop file a sec ago and hope that this won’t happen to all my LSC projects as well. Any comments or ideas or similar experiences???

From: Siegel

Re: Holy #$%^!!

Remember that Pascal remembers files in a project by absolute pathname, and not relatively, as THINK C does. Therefore, all of your duplicate projects are pointing to the same set of source files, until you explicitly change the references with option double-click.

From: Rguerra

Re: Resource Question

How does one read resources into memory at INIT time and have them stay in the System Heap after the INIT has executed and STILL HAVE THEM RECOGNIZABLE AS RESOURCES? DetachResource will make them ordinary handled blocks. Since they would probably have to remain as part of an open resource map, how do you keep your INIT file’s resource fork open, ie. prevent the System’s INIT31 mechanism from closing it after execution? I’d like to leave certain resources in the fork open AS RESOURCES, and I’ll leave the whole file open if I must. Alternatively, is there a way to “graft” a resource onto the System file (or ROM resource map in memory) without actually explicitly AddResource - ing to the System? I’d really rather not modify people’s System files. Any suggestions would be appreciated.

From: Bob Beason

Re: Scrolling Window

I am trying to write an application that takes data from an A/D board (in a Mac II) and plots it in a window as a horizontal graph. I would like for the graph to be about 4 screens wide and as the data are plotted, for the window automatically to shift to the right so that the most recent point is at the right edge of the screen. In some cases there will be only a few msecs between values from the I/O board, so I can’t spend a lot of time redrawing the window. Does anyone have or know of any “C” routines to handle automatic scrolling along the horizontal axis?

From: Noisy

Re: Desktop Bashing Apple says that directly drawing into the Desktop is a BAD THING, probably because it will abuse and confuse MultiFinder. No bets. Anyone have any brilliant (or at least moderately bright) ideas on how to display icons in the Desktop (like the Trashcan) without violating wMgrPort? The infamous ‘make a window bigger than the desktop and never let the User select it’ is great under the Finder, but fails miserably under MultiFinder, ‘cause it hides all the other application windows. Displaying icons inside 32x32 windows is a cheap solution, but then you get ugly frames around them (a custom WDEF maybe?). If you’ve got the idea...I’ve got the beer.

From: Dhands

Re: Edittext items & MacApp

I noticed something odd about putting controls (i.e., Radio buttons, Check boxes, Edittext etc...) into windows. MacApp will accept most of the standard controls in a TWindow or TView except for Edittext items. Edittext items require a superview of type TDialogView, where as the other controls will work with superviews of just TWindow or TView. The problem appears to be the fTEView field of TEditText remains nil if there is no TDialogView superview. It would be nice to be able to put an Edittext into a TWindow or TView, is this possible? and what might be the reason for not allowing it?

From: Rastamon

Re: Edittext items & MacApp

TEditText depends upon TDialogView to handle things like tabbing and dismissing modal dialogs. You can use “TTEView” objects in TViews and TWindows, but you’ll have to handle the tabbing between fields yourself.

From: Jaff

Re: Need Partitioning SW

Help, anyone! I want to do a partition on a Rodime 100MB drive we have. The drive was purchased from TallGrass as a raw device; we’ve formatted it with their utility which does not support partitions. We’ve also been able to format it with CMS Utility v4.0 which does not support partitions either. We would like to be able to run A/UX and Mac OS on this drive. Both utilities which can create the partitioning we desire do not recognize the device; Apple HD SC Setup wants a SONY, and Jasmine’s DriveWare, although the Rodime “RO3000T 1.26” string appears within their resources, does not work either.

Can anyone help?

From: Gwdavis

Re: Need Partitioning SW

Rodime formatting software is available on CIS or Genie, I think. I used it to format my CMS Pro102, and it’s the same drive I think.

From: Andgroup

Re: Flushing the cache

Does anyone out there know how to flush the read disk cache? I am not referring to the file system write cache, but the caching mechanism described in tech note #81. I need to flush cache of all blocks as specified, flushing the whole cache would be a bit gauche, but I would settle with that if that is all I had..

From: Malam

Re: LocalTalk xones

Liaison can create two zones on a non-dedicated Macintosh. It’s pretty cheap, compared to the Apple Internet Router, which costs $399. As far as hardware is concerned, the AST ICP for the MacII does implement extra AppleTalk ports, especially useful under A/UX. Something to that effect...

From: Jaff

Re: Scrolling INIT

Does anyone know of an INIT that will slow up scrolling (through lists or menus) on fast machines? We have SE/30s, IIx & IIcx (soon to have IIci) and find it hard to maneuver a menu when it scrolls real fast! Please upload!

From: Mrteague

Re: Scrolling INIT

I will upload the INIT someone else mentioned - call Scroll/Limit. On standard machines (SE, II), I found the “top speed” to be TOO slow - it seems to add a lot of processing overhead as an INIT. Good luck with it.


Community Search:
MacTech Search:

Software Updates via MacUpdate

Opera 40.0.2308.90 - High-performance We...
Opera is a fast and secure browser trusted by millions of users. With the intuitive interface, Speed Dial and visual bookmarks for organizing favorite sites, news feature with fresh, relevant content... Read more
BetterTouchTool 1.93 - Customize Multi-T...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
Backblaze - Online backup serv...
Backblaze is an online backup service designed from the ground-up for the Mac. With unlimited storage available for $5 per month, as well as a free 15-day trial, peace of mind is within reach with... Read more
Postbox 5.0.5 - Powerful and flexible em...
Postbox is a new email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even... Read more
Coda 2.5.19 - One-window Web development...
Coda is a powerful Web editor that puts everything in one place. An editor. Terminal. CSS. Files. With Coda 2, we went beyond expectations. With loads of new, much-requested features, a few surprises... Read more
Toast Titanium 15.1 - $99.99
Roxio Toast 15 Titanium, the leading DVD burner for Mac, makes burning even better, adding Roxio Secure Burn to protect your files on disc and USB in Mac- or Windows-compatible formats. Get more... Read more
Firetask 3.8.1 - Innovative task managem...
Firetask uniquely combines the advantages of classical priority-and-due-date-based task management with GTD. Stay focused and on top of your commitments - Firetask's "Today" view shows all relevant... Read more
Chromium 54.0.2840.71 - Fast and stable...
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. Version 54.0.2840.71: Release notes were unavailable... Read more
Chromium 54.0.2840.71 - Fast and stable...
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. Version 54.0.2840.71: Release notes were unavailable... Read more
Firetask 3.8.1 - Innovative task managem...
Firetask uniquely combines the advantages of classical priority-and-due-date-based task management with GTD. Stay focused and on top of your commitments - Firetask's "Today" view shows all relevant... Read more

Latest Forum Discussions

See All

WitchSpring2 (Games)
WitchSpring2 1.27 Device: iOS Universal Category: Games Price: $3.99, Version: 1.27 (iTunes) Description: This is the story of Luna, the Moonlight Witch as she sets out into the world. This is a sequel to Witch Spring. Witch Spring 2... | Read more »
Best Fiends Forever Guide: How to collec...
The fiendship in Seriously's hit Best Fiends has been upgraded this time around in Best Fiends Forever. It’s a fast-paced clicker with lots of color and style--kind of reminiscent of a ‘90s animal mascot game like Crash Bandicoot. The game... | Read more »
5 apps for the budding mixologist
Creating your own cocktails is something of an art form, requiring a knack for unique tastes and devising interesting combinations. It's easy to get started right in your own kitchen, though, even if you're a complete beginner. Try using one of... | Read more »
5 mobile strategy games to try when you...
Strategy enthusiasts everywhere are celebrating the release of Civilization VI this week, and so far everyone seems pretty satisfied with the first full release in the series since 2010. The series has always been about ultra-addictive gameplay... | Read more »
Popclaire talk to us about why The Virus...
Humanity has succumbed to a virus that’s spread throughout the world. Now the dead have risen with a hunger for human flesh, and all that remain are a few survivors. One of those survivors has just called you for help. That’s the plot in POPCLAIRE’... | Read more »
Oceans & Empires preview build sets...
Hugely ambitious sea battler Oceans & Empires is available to play in preview form now on Google Play - but download it quickly, as it’s setting sail away in just a few days. [Read more] | Read more »
Rusty Lake: Roots (Games)
Rusty Lake: Roots 1.1.4 Device: iOS Universal Category: Games Price: $2.99, Version: 1.1.4 (iTunes) Description: James Vanderboom's life drastically changes when he plants a special seed in the garden of the house he has inherited.... | Read more »
Flippy Bottle Extreme! and 3 other physi...
Flippy Bottle Extreme! takes on the bottle flipping craze with a bunch of increasingly tricky physics platforming puzzles. It's difficult and highly frustrating, but also addictive. When you begin to master the game, the sense of achievement is... | Read more »
Plants vs. Zombies Heroes guide: How to...
Plants vs. Zombies Heroes surprised us all, presenting a deep deck building experience. It's a great CCG that stands up well to the competition. There are a lot of CCGs vying for players' attention at the moment, but PvZ Heroes is definitely one... | Read more »
Arcane Online takes Online RPG’s to anot...
If you think that you need a desktop to enjoy high quality MMO gaming then Arcane Online hopes to prove you emphatically wrong. An epic fantasy Online RPG set in the land of Eldine, Arcane Online offers an abundance of features and content that... | Read more »

Price Scanner via

Apple’s Thursday “Hello Again” Event A Largel...
KGI Securities analyst Ming-Chi Kuo, who has a strong record of Apple hardware prediction accuracy, forecasts in a new note to investors released late last week that a long-overdue redo of the... Read more
12-inch Retina MacBooks on sale for $100 off...
Amazon has 2016 12″ Apple Retina MacBooks on sale for $100 off MSRP. Shipping is free: - 12″ 1.1GHz Silver Retina MacBook: $1199.99 $100 off MSRP - 12″ 1.1GHz Gold Retina MacBook: $1199.99 $100 off... Read more
Save up to $600 with Apple refurbished Mac Pr...
Apple has Certified Refurbished Mac Pros available for up to $600 off the cost of new models. An Apple one-year warranty is included with each Mac Pro, and shipping is free. The following... Read more
PixelStyle Inexpensive Photo Editor For Mac W...
PixelStyle is an all-in-one Mac Photo Editor with a huge range of high-end filters including lighting, blurs, distortions, tilt-shift, shadows, glows and so forth. PixelStyle Photo Editor for Mac... Read more
13-inch MacBook Airs on sale for $100-$140 of...
B&H has 13″ MacBook Airs on sale for $100-$140 off MSRP for a limited time. Shipping is free, and B&H charges NY sales tax only: - 13″ 1.6GHz/128GB MacBook Air (sku MMGF2LL/A): $899 $100 off... Read more
2.8GHz Mac mini available for $988, includes...
Adorama has the 2.8GHz Mac mini available for $988, $11 off MSRP, including a free copy of Apple’s 3-Year AppleCare Protection Plan. Shipping is free, and Adorama charges sales tax in NY & NJ... Read more
21-inch 3.1GHz 4K on sale for $1379, $120 off...
Adorama has the 21″ 3.1GHz 4K iMac on sale $1379.99. Shipping is free, and Adorama charges NY & NJ sales tax only. Their price is $120 off MSRP. To purchase an iMac at this price, you must first... Read more
Check Apple prices on any device with the iTr...
MacPrices is proud to offer readers a free iOS app (iPhones, iPads, & iPod touch) and Android app (Google Play and Amazon App Store) called iTracx, which allows you to glance at today’s lowest... Read more
Apple, Samsung, Lead J.D. Power Smartphone Sa...
Customer satisfaction is much higher among smartphone owners currently subscribing to full-service wireless carriers, compared with those purchasing service through a non-contract carrier, according... Read more
Select 9-inch Apple WiFi iPad Pros on sale fo...
B&H Photo has select 9.7″ Apple WiFi iPad Pros on sale for up to $50 off MSRP, each including free shipping. B&H charges sales tax in NY only: - 9″ Space Gray 256GB WiFi iPad Pro: $799 $0 off... Read more

Jobs Board

*Apple* Retail - Multiple Positions- Napervi...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Security Data Analyst - *Apple* Information...
…data sources need to be collected to allow Information Security to better protect Apple employees and customers from a wide range of threats.Act as the subject Read more
*Apple* Retail - Multiple Positions (Multi-L...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions- New Yor...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions- Yonkers...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.