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
 

Community Search:
MacTech Search:

Software Updates via MacUpdate

beaTunes 4.6.12 - Organize your music co...
beaTunes is a full-featured music player and organizational tool for music collections. How well organized is your music Library? Are your artists always spelled the same way? Any R.E.M. vs REM?... Read more
Tinderbox 7.0.1 - Store and organize you...
Tinderbox is a personal content management assistant. It stores your notes, ideas, and plans. It can help you organize and understand them. And Tinderbox helps you share ideas through Web journals... Read more
FotoMagico 5.4 - Powerful slideshow crea...
FotoMagico lets you create professional slideshows from your photos and music with just a few, simple mouse clicks. It sports a very clean and intuitive yet powerful user interface. High image... Read more
Direct Mail 4.3.9 - Create and send grea...
Direct Mail is an easy-to-use, fully-featured email marketing app purpose-built for OS X. It lets you create and send great looking email campaigns. Start your newsletter by selecting from a gallery... Read more
Tinderbox 7.0.1 - Store and organize you...
Tinderbox is a personal content management assistant. It stores your notes, ideas, and plans. It can help you organize and understand them. And Tinderbox helps you share ideas through Web journals... Read more
Direct Mail 4.3.9 - Create and send grea...
Direct Mail is an easy-to-use, fully-featured email marketing app purpose-built for OS X. It lets you create and send great looking email campaigns. Start your newsletter by selecting from a gallery... Read more
FotoMagico 5.4 - Powerful slideshow crea...
FotoMagico lets you create professional slideshows from your photos and music with just a few, simple mouse clicks. It sports a very clean and intuitive yet powerful user interface. High image... Read more
beaTunes 4.6.12 - Organize your music co...
beaTunes is a full-featured music player and organizational tool for music collections. How well organized is your music Library? Are your artists always spelled the same way? Any R.E.M. vs REM?... Read more
Spotify 1.0.49.125. - Stream music, crea...
Spotify is a streaming music service that gives you on-demand access to millions of songs. Whether you like driving rock, silky R&B, or grandiose classical music, Spotify's massive catalogue puts... Read more
Eye Candy 7.2.0.50 - 30 professional Pho...
Eye Candy renders realistic effects that are difficult or impossible to achieve in Photoshop alone, such as Fire, Chrome, and the new Lightning. Effects like Animal Fur, Smoke, and Reptile Skin are... Read more

Rollercoaster Tycoon Touch Guide: How to...
| Read more »
Rabbids Crazy Rush Guide: How to unlock...
The Rabbids are back in a new endless running adventure, Rabbids Crazy Rush. It's more ridiculous cartoon craziness as you help the little furballs gather enough fuel (soda) to get to the moon. Sure, it's a silly idea, but everyone has dreams --... | Read more »
Tavern Guardians (Games)
Tavern Guardians 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: Tavern Guardians is a Hack-and-Slash action game played in the style of a match-three. You can experience high pace action... | Read more »
Slay your way to glory in idle RPG Endle...
It’s a golden age for idle games on the mobile market, and those addictive little clickers have a new best friend. South Korean developer Ekkorr released Endless Frontier last year, and players have been idling away the hours in the company of its... | Read more »
Tiny Striker: World Football Guide - How...
| Read more »
Good news everyone! Futurama: Worlds of...
Futurama is finding a new home on mobile in TinyCo and Fox Interactive's new game, Futurama: Worlds of Tomorrow. They're really doing it up, bringing on board Futurama creator Matt Groening along with the original cast and writers. TinyCo wants... | Read more »
MUL.MASH.TAB.BA.GAL.GAL (Games)
MUL.MASH.TAB.BA.GAL.GAL 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ENDLESS UPGRADES. CONSTANT DANGER. ANCIENT WISDOM. BOUNCY BALLS. Launch Sale, 40% OFF for a very limited time!!! MUL.... | Read more »
Dungeon Rushers (Games)
Dungeon Rushers 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Dungeon Rushers is a 2D tactical RPG combining dungeon crawler’s gameplay and turn based fights. Manage your team, loot dusty... | Read more »
Blasty Bubs is a colorful Pinball and Br...
QuickByte Games has another arcade treat in the works -- this time it's a mishmash of brick breaking and Pinball mechanics. It's called Blasty Bubs, and it's a top down brickbreaker that has you slinging balls around a board. [Read more] | Read more »
Corsola and Heracross are the new region...
Generation 2 finally launched in Pokémon GO, unleashing a brand new batch of Pokémon into the wild. Even before the update went live people were speculating on how to catch elusive Pokémon like the legendary "dogs", Unknown, and whether or not... | Read more »

Price Scanner via MacPrices.net

13-inch 2.0GHz Apple MacBook Pros on sale for...
B&H has the non-Touch Bar 13″ 2.0GHz MacBook Pros in stock today and on sale for $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 2.0GHz MacBook Pro Space Gray (... Read more
15-inch Touch Bar MacBook Pros on sale for up...
B&H Photo has the new 2016 15″ Apple Touch Bar MacBook Pros in stock today and on sale for up to $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.7GHz Touch Bar... Read more
12-inch Retina MacBooks on sale for $1150, $1...
B&H has 12″ 1.1GHz Retina MacBooks on sale for $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 12″ 1.1GHz Space Gray Retina MacBook: $1149 $150 off MSRP - 12″ 1.1GHz... Read more
Apple restocks refurbished 11-inch MacBook Ai...
Apple has Certified Refurbished 11″ MacBook Airs (the latest models recently discontinued by Apple), available for up to $170 off original MSRP. An Apple one-year warranty is included with each... Read more
Apple Park Opens to Employees in April With T...
Apple has announced that Apple Park, the company’s new 175-acre campus, will be ready for employees to begin occupying in April. The process of moving more than 12,000 people will take over six... Read more
Manhattan Neighbors for Safer Telecommunicati...
A new education and advocacy group focused on cell phone and wireless risks, Manhattan Neighbors for Safer Telecommunications, launched today at http://www.ManhattanNeighbors.org. Manhattan... Read more
Portable Dual DisplayPort Monitor Dock Enable...
IOGEAR has announced the launch of its USB-C Dual DisplayPort Monitor Portable Dock (GUC3CMST). The dock enables users to easily connect two DisplayPort monitors to a USB-C or Thunderbolt 3 laptop to... Read more
13-inch 2.7GHz Retina MacBook Pro on sale for...
Amazon.com has restocked the 13″ 2.7GHz/128GB Retina MacBook Pro (MF839LL/A) for $200 off MSRP including free shipping: - 13″ 2.7GHz/128GB Retina MacBook Pro: $1099 $200 off MSRP This model tends to... Read more
Apple’s New iPad Ads Don’t Address Pro Users’...
Apple launched a new tranche of iPad Pro TV ads last week addressing actual queries and challenges from the Twitterverse, albeit using actors for the visuals. That’s great. As an iPad fan and heavy... Read more
Free Verbum Catholic Bible Study App For iOS
The Verbum mobile app runs on Logos’ powerful Bible software and is an advanced resource for mobile Catholic study. The Verbum app surrounds the Bible with the Tradition. Verbum comes with 15 free... Read more

Jobs Board

*Apple* Retail - Multiple Positions- Chicago...
SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Manager *Apple* Systems Administration - Pu...
Req ID 3315BR Position Title Manager, Apple Systems Administration Job Description The Manager of Apple Systems Administration oversees the administration and Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Manager *Apple* Systems Administration - Pu...
Req ID 3315BR Position Title Manager, Apple Systems Administration Job Description The Manager of Apple Systems Administration oversees the administration and Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.