TweetFollow Us on Twitter

Resources/ ZBAS 4.0
Volume Number:3
Issue Number:8
Column Tag:Basic School

Using Resources with ZBASIC 4.0

By Dave Kelly, MacTutor Editorial Board

This is the anniversary of Basic Wars which began a year ago. This time there is a real winner! After a lot of struggle it appears that ZBasic™ has now come out on top. Version 4.0 is now available. If nothing has broken between what I’ve seen and the final release, ZBASIC ™ should be 99% free of problems (famous last words). The program at the end of this months column was written using version 3.85 beta which is supposed to be like version 4.0 except without the new editor. Even without the editor, I am extremely excited about ZBasic™ now (NO MORE BOMBS!!!).

Enhancements to ZBASIC ™ before version 4.0 are:

• NEW MANUAL: 206 pages dedicated to just the Macintosh, including many many examples.

• TOOLBOX supported: documentation is now provided to use toolbox commands at will.

• NEW COMMANDS such as TEHANDLE, SELECT CASE, GET WINDOW, HANDSHAKE, SHUTDOWN, FLUSHEVENTS.

Ok, enough of that. The real reason we are here is to discover how to program in Basic. If you have been watching this column over the past several months you will see that there have been things I’ve wanted to do with Basic that was not supported by any version of Basic. In addition, we have received many letters from frustrated readers trying to use Basic to do things that should have been easy but not supported. I’ll attempt to patch the holes in the past columns by showing you how in the ‘new’ ZBASIC .

Michael Crichton Reads MacTutor

One letter I received recently was from a fellow author, Michael Crichton. For those of you that don’t know him, he was author of the book, “The Andromeda Strain” and has just released a new book, “SPHERE” (How’s that for a plug for your new book, Michael?). Anyway, in his letter, he indicated that he wants “to manipulate text strings as a resource in a compiled ZBasic program”. The basic theme of this month’s column is “Using Resources with ZBasic”.

The idea that I will show is to use a string resource of type ‘STR ‘ to store data that is to be used by the application the next time that it is run. In this case, I will store the current font and size in the string resource. The other half of this column finishes up what got started in the past several columns. If you remember, I attempted to read the font names from the system file and install them into a Font menu. With PCMacBasic it was determined that even though you could use the ADDRESMENU toolbox call and create the menu, PCMacBasic would not let you access any new menus. UGH! Then there was MS Basic which let you read the font resources through library calls (though a roundabout way), but would only let you have 20 items in a menu. Since many of you have hard disks and want more than 20 fonts, that limited your programs to those fonts that you could fit. Even previous versions of ZBasic had problems, but since it works now and I can’t remember exactly the problem (probably a bomb!) we won’t discuss it.

Fig. 1 A Font and Size menu that really works in Basic!

Font Menu That Works

To use ADDRESMENU to load the font resource names into a menu I use the function GETMHANDLE ( line 39) to get a handle to the menu I want to add items to. In this case, I have already set up a ‘Font’ menu with a previous menu statement ( line 30). (Sorry, you’ll have to count lines yourself). The FontMenuHandle& variable now contains the handle to the font menu. FontMenuHandle& is used in the call to ADDRESMENU ( line 40). The resource type for the ADDRESMENU call is represented by CVI(“FONT”) as shown by looking on page E-201 of the new ZBasic manual in the ‘Alphabetical Listing of Toolbox Terms’. There is no more confusion on what kind of parameter needs to be used in a toolbox call; just look up the terms if you need help. OK, now the ‘Font’ menu is set up.

Finding the application

Next the program sets up the string resource that will be used to store the font and size. In my first attempt, I tried using the global memory location CurApRefNum found on page E-198 to get a RefNum to use in resource statements to indicate the resource file that I wanted to use (in this case, I wanted to use the application itself). BUT ZBasic opens up the printer driver automatically for you when the application is launched and CurApRefNum turns out to be the reference number for the printer driver and not the application. The program worked fine under those conditions, but the string was being saved in the printer driver resource and not in the ZBasic application. If you recall, I complained about the printer driver opening up several months back when we discussed ZBasic printing. This could have led to a real problem except that I found that the global memory location CurApName still contained the name of the application. WHEW! If not for this, ZBasic would be branded as not being able to find its own application (in case somebody changes the name or location of the application). Lines 42-47 get the application name from CurApName.

Next the application resource file is opened with OPENRESFILE and the file reference number is returned. Lines 51-57 were added for error handling just in case something goes wrong although these lines will probably never have to be used. Lines 60-67 setup the string (‘STR ’) resource. If the string resource handle strHnd& is zero then the resource does not exist and is created with ID#=1000. Otherwise the handle strHnd& will refer to the string stored previously (the last time the application was run). This string resource must now be converted to a ZBasic string variable and converted into font and size information (Lines 69-72). The function I call ReturnString$ is defined in lines 14-20 and reads the string referred to by the handle strHnd& into the string variable returned by the function.

Menu Items

The next several lines determine which menu item matches the set up that has just been read in and checks the appropriate item. The items were searched by using the GETITEM toolbox call. Then in line 91 the font number which matches the font name is read using GETFNUM and the font and size can now be set with ZBasic’s TEXT statement. A NOTE HERE: I tried CALL TEXTFONT and CALL TEXTSIZE to change the font and size information but these commands did not work when BREAK ON was being used. By removing BREAK ON everything seemed ok. This apparent bug could give somebody a few headaches someday. I recommend that you use the TEXT statement because it works better and sets the font, size, face, and mode in one statement. This still doesn’t excuse Zedcor from eventually fixing this bug.

Dialog Statement Fixed

The remainder of the program handles the menu events. There are a few more comments about event processing. Several months back, I showed how to use ZBasic DIALOG statements (not used in this month’s program). At that time, ZBasic did not quite function properly. There are a few corrections that should be made to the dialog example program published in the January 1987 MacTutor. The new improved program is printed in the new ZBasic manual on page E-68 as Example 1 for the DIALOG statement. The old program will bomb with version 4.0. The reason is that the DIALOG ON/OFF statements must each have an ON DIALOG statement to tell the compiler where the DIALOG events will be handled. What counts is that it now works wonderfully!! IF you are having problems with implementing DIALOG statements then be sure hat the DIALOG ON/OFF statement includes the portion of the program that you wish to trap dialog events and that there is a ON DIALOG statement to go with it.

As you can see, the main event loop (lines 97-102) is the only part of the program that will allow events to control the program. During the remainder of the program, events will be held in queue until the program returns to the main loop. Event trapping in ZBasic works differently than in MSBasic because of the way it is compiled. I (almost) like to think of the DIALOG ON/OFF, MENU ON/OFF, BREAK ON/OFF and other event statements to be compiler directives rather than Basic commands because they actually instruct the compiler as to which parts of the code the event trapping will occur.

SELECT CASE is a welcome improvement when it comes to handling menu events. The code is really easier to write (and to read later).

That about wraps it up for this time. Have FUN!!

REM ZBASIC RESOURCE EXAMPLE
REM ©MacTutor 1987
REM By Dave Kelly
REM IMPORTANT: COMPILE THIS PROGRAM AS
REM AN APPLICATION BEFORE RUNNING!!
REM Resources are used which need to be
REM written to application’s own resource file

WINDOW OFF:REM Turn off default window
BREAK ON :REM This line may be deleted after program           debugged.
DEFSTR LONG:DEF MOUSE=-1:COORDINATE WINDOW

REM convert string resource to a string, given handle.
LONG FN ReturnString$(SHndl&)
FByte%=PEEK(PEEK LONG(SHndl&))
String$=””
FOR i%=1 TO FByte%
  String$=String$+CHR$(PEEK(PEEK LONG(SHndl&)+i%))
NEXT i%
END FN= String$

WINDOW #1,””,(50,100)-(450,300),4 : REM Main window.
False=0:True=NOT(False)
OldFont=0:OldSize=12
REM Setup menus
APPLE MENU “About this application ”
MENU 1,0,1,”File”
MENU 1,1,1,”Quit”
EDIT MENU 2
MENU 3,0,1,”Font”
MENU 4,0,1,”Size”
MENU 4,1,1,”9 Point”
MENU 4,2,1,”10 Point”
MENU 4,3,1,”12 Point”
MENU 4,4,1,”14 Point”
MENU 4,5,1,”18 Point”
MENU 4,6,1,”24 Point”
SizeMenuHandle&=FN GETMHANDLE(4)
FontMenuHandle&=FN GETMHANDLE(3)
CALL ADDRESMENU(FontMenuHandle&,CVI(“FONT”))

REM Find out what this application is named 
CurApName=&H910
CurApName$=””
FOR I=1 TO PEEK(CurApName)
 CurApName$=CurApName$+CHR$(PEEK(CurApName+I))
NEXT I

REM Open application resource file
Refnum=FN OPENRESFILE(CurApName$)
Errnum=FN RESERROR
LONG IF Errnum<>0 
BEEP
PRINT “ERROR # “;Errnum
PRINT”Problem with Application Resource File!”
FOR I=1 TO 1000:NEXT I:END
END IF
StrHnd&=FN GETRESOURCE(CVI(“STR “),1000)

REM Setting up string resource to save default font and size
LONG IF StrHnd&=0
 Str$=”Chicago.12"
 StrHnd&=FN NEWSTRING(Str$)
 CALL ADDRESOURCE(StrHnd&,CVI(“STR “),1000,””)
XELSE
 StrHnd&=FN GETSTRING(1000)
END IF

REM Convert default font and size
default$=FN ReturnString$(StrHnd&)
defaultfont$=MID$(default$,1,INSTR(1,default$,”.”)-1)
Fsize=VAL(MID$(default$,INSTR(1,default$,”.”)+1))

REM Check default font in Font menu
fontcnt%=FN COUNTMITEMS(FontMenuHandle&)
FOR i=1 TO fontcnt%
 CALL GETITEM(FontMenuHandle&,i,item$)
 IF item$=defaultfont$ THEN OldFont=i:i=fontcnt%+1
NEXT i
CALL CHECKITEM(FontMenuHandle&,OldFont,True)

REM Check default size in Size menu
sizecnt%=FN COUNTMITEMS(FontMenuHandle&)
FOR i=1 TO sizecnt%
 CALL GETITEM(SizeMenuHandle&,i,item$)
 sname$=MID$(STR$(Fsize),2)+” Point”
 IF item$=sname$ THEN OldSize=i:i=sizecnt%+1
NEXT i
CALL CHECKITEM(SizeMenuHandle&,OldSize,True)

CALL GETFNUM(defaultfont$,Fnum%)
TEXT Fnum%,Fsize,0,0
GOSUB “Display”
ON MENU GOSUB “MenuEvent”
FLUSHEVENTS:MENU ON

REM Loop here until something happens
“Loop”
DO
UNTIL 0
MENU STOP
END

“MenuEvent”
Menunumber=MENU(0):Menuitem=MENU(1)
MENU
SELECT Menunumber
 CASE 1
 GOSUB “File”
 CASE 2
 GOSUB “Edit”
 CASE 3
 GOSUB”Font”
 CASE 4
 GOSUB”Size”
 CASE 255
 IF Menuitem=1 THEN GOSUB “About”
 GOSUB “Display”
 CASE ELSE
END SELECT
RETURN

“About” :REM About menu
WINDOW #2,””,(75,100)-(400,250),-2
TEXT 2,14,1,0
PRINT
PRINT SPACE$(11);”ZBasic™ Resource Sample”
PRINT
TEXT 2,12,0,0
PRINT SPACE$(15);”©MacTutor, 1987 by Dave Kelly”
PRINT
PRINT SPACE$(12);”ZBasic™ Version 4.0 -  IT WORKS!!!!”
PRINT
MOUSE ON
DO
UNTIL MOUSE(0)<>0
MOUSE OFF
WINDOW CLOSE #2
GOSUB “Display”
RETURN
“File”
CALL UPDATERESFILE(RefNum)
END

“Edit”  : REM Edit menu - used for DA’s only
RETURN

“Font”  : REM Font menu
CALL CHECKITEM(FontMenuHandle&,OldFont,False)
CALL GETITEM(FontMenuHandle&,Menuitem,FontName$)
CALL CHECKITEM(FontMenuHandle&,Menuitem,True)
CALL GETITEM(FontMenuHandle&,Menuitem,defaultfont$)
CALL GETFNUM(defaultfont$,Fnum%)
IF Menuitem<>OldFont GOSUB “SetResString”
OldFont=Menuitem
GOSUB “Display”
RETURN

“Size” : REM Size menu
CALL CHECKITEM(SizeMenuHandle&,OldSize,False)
CALL CHECKITEM(SizeMenuHandle&,Menuitem,True)
SELECT Menuitem
 CASE 1
 Fsize=9
 CASE 2
 Fsize=10
 CASE 3
 Fsize=12
 CASE 4
 Fsize=14
 CASE 5
 Fsize=18
 CASE 6
 Fsize=24
END SELECT
IF Menuitem<>OldSize GOSUB “SetResString”
OldSize=Menuitem
GOSUB “Display”
RETURN

REM Set string to be saved in string resource
“SetResString”
default$=defaultfont$+”.”+MID$(STR$(Fsize),2)
CALL SETSTRING(StrHnd&,default$)
CALL CHANGEDRESOURCE(StrHnd&)
RETURN

“Display” :REM Main screen display
TEXT Fnum%,Fsize,0,0
CLS 
PRINT “FONT:”;defaultfont$
PRINT “SIZE:”;Fsize
PRINT
TEXT ,,1,0
MacTutor$=”Read MacTutor™ !!”
REM Center MacTutor string
Pxls%=FN STRINGWIDTH(MacTutor$)
Windwidth%=WINDOW(6)
CALL MOVE((Windwidth%-Pxls%)/2,0)
PRINT MacTutor$
RETURN
 
AAPL
$524.94
Apple Inc.
+5.93
MSFT
$40.01
Microsoft Corpora
-0.39
GOOG
$536.10
Google Inc.
-20.44

MacTech Search:
Community Search:

Software Updates via MacUpdate

VMware Fusion 6.0.3 - Run Windows apps a...
VMware Fusion allows you to create a Virtual Machine on your Mac and run Windows (including Windows 8.1) and Windows software on your Mac. Run your favorite Windows applications alongside Mac... Read more
Tweetbot 1.5.1 - Popular iOS twitter cli...
Tweetbot is a full-featured OS X Twitter client with a lot of personality. Whether it's the meticulously-crafted interface, sounds and animation, or features like multiple timelines and column views... Read more
Mac DVDRipper Pro 4.1.7 - Copy, backup,...
Mac DVDRipper Pro is the DVD backup solution that lets you protect your DVDs from scratches, save your batteries by reading your movies from your hard disk, manage your collection with just a few... Read more
PDFpenPro 6.2 - Advanced PDF toolkit for...
PDFpenPro allows users to edit PDF's easily. Add text, images and signatures. Fill out PDF forms. Merge or split PDF documents. Reorder and delete pages. Even correct text and edit graphics! Create... Read more
PDFpen 6.2 - Edit and annotate PDFs with...
PDFpen allows users to easily edit PDF's. Add text, images and signatures. Fill out PDF forms. Merge or split PDF documents. Reorder and delete pages. Even correct text and edit graphics! Features... Read more
Monolingual 1.5.9 - Remove unwanted OS X...
Monolingual is a program for removing unnecesary language resources from OS X, in order to reclaim several hundred megabytes of disk space. It requires a 64-bit capable Intel-based Mac and at least... Read more
Maya 2015 - Professional 3D modeling and...
Maya is an award-winning software and powerful, integrated 3D modeling, animation, visual effects, and rendering solution. Because Maya is based on an open architecture, all your work can be scripted... Read more
Starcraft II: Wings of Liberty 1.1.1.180...
Download the patch by launching the Starcraft II game and downloading it through the Battle.net connection within the app. Starcraft II: Wings of Liberty is a strategy game played in real-time. You... Read more
Sibelius 7.5.0 - Music notation solution...
Sibelius is the world's best-selling music notation software for Mac. It is as intuitive to use as a pen, yet so powerful that it does most things in less than the blink of an eye. The demo includes... Read more
Typinator 5.9 - Speedy and reliable text...
Typinator turbo-charges your typing productivity. Type a little. Typinator does the rest. We've all faced projects that require repetitive typing tasks. With Typinator, you can store commonly used... Read more

Latest Forum Discussions

See All

This Week at 148Apps: April 14-18, 2014
Spring Into Our App Reviews   | Read more »
Have a Special Dead Trigger 2 Easter Bas...
Have a Special Dead Trigger 2 Easter Basket Full of Goodies, Courtesy of Madfinger Games Posted by Rob Rich on April 18th, 2014 [ permalink ] Dead Trigger 2 | Read more »
Almost All of Playdek’s Library is on Sa...
Almost All of Playdek’s Library is on Sale Right Now, and You Should Check it Out Posted by Rob Rich on April 18th, 2014 [ permalink ] Playdek has released quite a few great iOS ports of board and card games over the years, and now most of them... | Read more »
Zynga Launches Brand New Farmville Exper...
Zynga Launches Brand New Farmville Experience with Farmville 2: Country Escape Posted by Tre Lawrence on April 18th, 2014 [ permalink ] | Read more »
David. Review
David. Review By Cata Modorcea on April 18th, 2014 Our Rating: :: MINIMALISTIC IN A DIFFERENT WAYUniversal App - Designed for iPhone and iPad David is a minimalistic game wrapped inside of a soothing atmosphere in which the hero... | Read more »
Eyefi Unveils New Eyefi Cloud Service Th...
Eyefi Unveils New Eyefi Cloud Service That Allows Users to Share Media Across Personal Devices Posted by Tre Lawrence on April 18th, 2014 [ permalink ] | Read more »
Tales from the Dragon Mountain: The Lair...
Tales from the Dragon Mountain: The Lair Review By Jennifer Allen on April 18th, 2014 Our Rating: :: STEADY ADVENTURINGiPad Only App - Designed for the iPad Treading a safe path, Tales from the Dragon Mountain: The Lair is a... | Read more »
Yahoo Updates Flickr App with Advanced E...
Yahoo Updates Flickr App with Advanced Editing Features and More Posted by Tre Lawrence on April 18th, 2014 [ permalink ] | Read more »
My Incredible Body - A Kid's App to...
My Incredible Body - A Kid's App to Learn about the Human Body 1.1.00 Device: iOS Universal Category: Education Price: $2.99, Version: 1.1.00 (iTunes) Description: Wouldn’t it be cool to look inside yourself and see what was going on... | Read more »
Trials Frontier Review
Trials Frontier Review By Carter Dotson on April 18th, 2014 Our Rating: :: A ROUGH LANDINGUniversal App - Designed for iPhone and iPad Trials Frontier finally brings the famed stunt racing franchise to mobile, but how much does its... | Read more »

Price Scanner via MacPrices.net

Deal Alert! 13-inch MacBook Pro on sale for $...
Best Buy has the 13″ 2.5GHz MacBook Pro on sale for $999.99 on their online store. Choose free shipping or free instant local store pickup (if available). Their price is $200 off MSRP. Price is valid... Read more
Free HopTo 2.2 Helps Enhance Your Productivit...
The HopTo app helps you do more on your iPad by providing more and easier adaccess to files and documents. Version 2.2 adds Egnyte and HopTo’s Mac OSX File Connector. If you already have the hopTo... Read more
National Distracted Driving Awareness Month:...
As the country recognizes National Distracted Driving Awareness Month, Sprint is reminding wireless consumers to focus on driving while behind the wheel, to not text or email while driving, and to... Read more
13-inch 2.4GHz Retina MacBook Pro available f...
Abt has the 13″ 2.4GHz 128GB Retina MacBook Pro available for $1229 including free shipping. Their price is $70 off MSRP. Read more
iMacs on sale for up to $160 off MSRP this we...
Best Buy has iMacs on sale for up to $160 off MSRP for a limited time. Choose free home shipping or free instant local store pickup (if available). Prices are valid for online orders only, in-store... Read more
iPad Airs on sale this weekend for up to $100...
Best Buy has WiFi iPad Airs on sale for $50 off MSRP and WiFi + Cellular iPad Airs on sale for $100 off MSRP on their online store for a limited time, with prices now starting at $449. Choose free... Read more
Apple restocks refurbished Mac minis starting...
The Apple Store has restocked Apple Certified Refurbished Mac minis for up to $150 off the cost of new models. Apple’s one-year warranty is included with each mini, and shipping is free: - 2.5GHz Mac... Read more
Hyundai Brings Apple CarPlay To The 2015 Sona...
Hyundai Motor America has announced it will bring Apple CarPlay functionality to the 2015 Sonata. CarPlay is pitched as a smarter, safer and easier way to use iPhone in the car and gives iPhone users... Read more
Updated iPads Coming Sooner Than We Had Thoug...
MacRumors, cites KGI securities analyst Ming Chi Kuo, well-respected as an Apple product prognisticator, saying that Apple will introduce an upgraded iPad Air and iPad mini in 2014/Q3, meaning the... Read more
Toshiba Unveils New High And Low End Laptop M...
Toshiba has announced new laptop models covering both the high-end and low-end of the notebook computer spectrum. Toshiba 4K Ultra HD Laptop Toshiba’s new Satellite P55t features one of the world’s... Read more

Jobs Board

Position Opening at *Apple* - Apple (United...
…customers purchase our products, you're the one who helps them get more out of their new Apple technology. Your day in the Apple Store is filled with a range of Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
*Apple* Inc. Research Data Specialist - Appl...
…of Worldwide Market Research & Intelligence. The team is responsible for conducting Apple branded consumer market research. It is also responsible for analyzing data Read more
*Apple* Automotive Parts Department position...
Apple Automotive is one of the fastest growing dealer…and it shows. Consider making the switch to the Apple Automotive Group today! At Apple Automotive, we Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.