Re: Free Palm OS HTTP(S) librarry

[Philippe Fischer]

Hi,

there is already a HTTPLib on newer palm devices (treo, T5, E2). The  
headers from the lib
an some doc can be found in the SDK from PalmOne (not the PalmSource  
SDK!!).



Regards Philippe


On Wed, 19 Oct 2005 02:08:43 +0800, Mohammad Afshari  
<[EMAIL PROTECTED]> wrote:



Hello

I'm looking for a free Palm OS HTTP library.

I have found this commercial one from PDA Developers which seems to be  
what

I just need, but you need to pay for it
http://www.pdadevelopers.com/homehttps.htm

I have also found HTTPLib2 for Palm http://www.tektonica.com/projects/  
but

when I downloaded the package, the .PRC file doesnt get installed on the
Emulator, dont know why (and I beilieve the link is not working now!)

The other site which I cam across was  
http://www.bitsplitter.net/PalmHTTP/

but it didnt seem to have the proper documention...

I would be thankful if you can refer me to other free libraries...

Thanx in advance
Mohammad Afshari







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RE: Free Palm OS HTTP(S) librarry

[David Birdsall]

You can always use tcp/ip sockets to send and parse HTTP headers along with
code to read and write the body data. It takes a while (easier if you're using
something like POL) but you still need to know the ins and outs of the Palm
NetLib API + SSL API if you wish to do secure sockets. It is possible, though.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Mohammad
Afshari
Sent: 18 October 2005 19:09
To: Palm Developer Forum
Subject: Free Palm OS HTTP(S) librarry


Hello

I'm looking for a free Palm OS HTTP library.

I have found this commercial one from PDA Developers which seems to be what 
I just need, but you need to pay for it 
http://www.pdadevelopers.com/homehttps.htm

I have also found HTTPLib2 for Palm http://www.tektonica.com/projects/ but 
when I downloaded the package, the .PRC file doesnt get installed on the 
Emulator, dont know why (and I beilieve the link is not working now!)

The other site which I cam across was http://www.bitsplitter.net/PalmHTTP/ 
but it didnt seem to have the proper documention...

I would be thankful if you can refer me to other free libraries...

Thanx in advance
Mohammad Afshari 



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AlmSetProcAlarm

[Kris]

Hi all,

I need to use Proc Alarm: AlmSetProcAlarm and I have problems to pass a correct 
pointer of my callback function.
Could anyone please tell me some hints/example how to sort this out ?
1) Should I use DmDatabaseProtect or MemHandleLock to keep the code resource 
locked ?
2) Should I use MemHandleUnlock afterwards ?
3) Should the callback function be in a separate code resourse ?

I would really appreciate any help. Thanks

Cheers,
Kris
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Re: AlmSetProcAlarm

[Jürgen Wind]

Can I assume you know that it's MUCH easier to use the alarm launch codes ?

Jürgen

Kris wrote:
> Hi all,
> 
> I need to use Proc Alarm: AlmSetProcAlarm and I have problems to pass a 
> correct pointer of my callback function.
> Could anyone please tell me some hints/example how to sort this out ?
> 1) Should I use DmDatabaseProtect or MemHandleLock to keep the code resource 
> locked ?
> 2) Should I use MemHandleUnlock afterwards ?
> 3) Should the callback function be in a separate code resourse ?
> 
> I would really appreciate any help. Thanks
> 
> Cheers,
> Kris


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Re: AlmSetProcAlarm

[Kris]

Yes, I know that, but in my application I need to do some actions not visible 
for an User and the LCD must remain off.

/Kris
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Re: pnoJpeg2GetInfo fatal alert

[Stefan Stolz]

hi!

I think/hope i've found the error. The prc-File which was in the 
zip-file was corrupt.


I've uploaded a 2.11-zip-file with a new prc-file. Maybe this works.

Stefan

Anning Chen wrote:

I'm also getting an error where if I call the pnoJpeg2GetInfo function the 
simulator just crashes without any alerts.  Is this a pnoJpeg2Lib bug?  Should 
I be using the version lib instead?  It seems version 1 is not being supported 
anymore.  Did anyone find out a solution to this?

Thanks
Anning



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Re: CodeWarrior, Palm OS DS or what?

[Piero Pirrone]

Hi Del,
many thanks for the reply.

The main problem is not the investment in software, here in our 
software house spend a lot of money each year for any kind of 
software, the problem instead is its development cycle.


I do an example: we bought some times ago Pocket Studio for Palm OS, 
it is a brilliant suite, we feel good using it (since it has the same 
user interface as Delphi has). The problem using Pocket Studio is 
that it use Pascal as front-end language. So since the API functions 
are written in C, there is a nightmare to use some API functions 
since the Pascal has a different kind of sintax.
Of course this could be not a true problem, since we are here 
experienced developer in C/C++ and Delphi. Unfortunately searching 
and adapting the API functions or structures to Pascal is a very time 
consuming operation.


Then we are looking for something more sophisticated than a simple 
suite like Code Warrior or Palm OS DS.


I'm sure that are no other way to develop an appllication using C or 
C++, but I have no experience with these two suite (CW or Palm OS 
DS), so my question was directed to understand what was the best platform.


As written before, of course I'm a little worried about the old 
program style of the actual Palm OS development tools, they remember 
my old times when with Microsoft C, or Turbo C were forced to write 
the resource in a file, then link the resource to the code writing 
any kind of function and details to develop a simple application. The 
big applications as that written by us are a true nightmare...


That's all, of course I will download (again) the Code Warrior to see 
if it has a better development cycle than the Palm OS suite.


My best regards,
Piero Pirrone



At 23.57 18/10/2005, you wrote:

Given your willingness to make an investment in software,
and the availability of sample versions for many of these IDE's,
why not try one or two?

I have taken note of the fact that there are some BASIC oriented products
that have
counterparts from the same manufacturer costing less than $200 that are
designed
for development for handheld devices running Microsoft OS.  Are you merely
interested in development for Palm OS?  The manufacturer web sites for the
IDE's
typically include a walk-through option that shows the environment.


- Original Message -
From: "Piero Pirrone" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" 
Sent: Tuesday, October 18, 2005 10:13 AM
Subject: Re: CodeWarrior, Palm OS DS or what?


> Yes of course, It's not a problem to buy Code Warrior, but I need
> some impressions about it,
> since coming from advanced tools like Delphi or Borland compilers and
> landing on Palm OS suite or Code Warrior seems to me a kind of
> turning back in the 80s when using TurboC you were forced to use a
> resource editor to make the user interface, then to write down a lot
> of API calls to handles the interface gadgets.
>
> Has Code Warrior the same philosofy as Palm OS Suite has? or Code
> Warrior is a better environment than Palm OS Suite?
>
> It doesn't matter the costs, it merely a technical reasons...
>
> Bye,
> Piero
>
>
>
> At 17.07 18/10/2005, you wrote:
> >You can always try the free Palm OS suite, and if you don't care for it,
buy
> >something.
> >
> >(I've used Borland Builder and VB, and am inclined to believe my learning
> >curve would have
> >been less steep with one of the VB-like developer suites.  At the same
time,
> >with help
> >from parties at this forum, I haven't hit the wall yet while learning
with
> >CodeWarrior.)
> >
> >- Original Message -
> >From: "Piero Pirrone" <[EMAIL PROTECTED]>
> >To: "Palm Developer Forum" 
> >Sent: Tuesday, October 18, 2005 9:15 AM
> >Subject: CodeWarrior, Palm OS DS or what?
> >
> >
> > > Hi!
> > >
> > > I'm starting writing an application using the Palm OS Developer
> > > Suite, but I found this suite very slow, not so easy to understand
(etc.
> >etc.)
> > >
> > > I used for a little, Pocket Studio (it use a Pascal like language),
> > > but I leaved it for a C/C++ language since each function I need to
> > > use in Pascal must be converted from the C API.
> > >
> > > Since I'm a Borland C++ user what's the best suite CodeWarrior, Palm
> > > OS Developer Suite, or something other?
> > >
> > > Bye,
> > > Piero
> > >
> > >
> > > --
> > > For information on using the PalmSource Developer Forums, or to
> >unsubscribe, please see http://www.palmos.com/dev/support/forums/
> > >
> >
> >--
> >For information on using the PalmSource Developer Forums, or to
> >unsubscribe, please see http://www.palmos.com/dev/support/forums/
>
>
> --
> For information on using the PalmSource Developer Forums, or to
unsubscribe, please see http://www.palmos.com/dev/support/forums/
>

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Re: CodeWarrior, Palm OS DS or what?

[Del Ventruella]

I understand.

Best wishes.

- Original Message - 
From: "Piero Pirrone" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" 
Sent: Wednesday, October 19, 2005 7:11 AM
Subject: Re: CodeWarrior, Palm OS DS or what?


> Hi Del,
> many thanks for the reply.
>
> The main problem is not the investment in software, here in our
> software house spend a lot of money each year for any kind of
> software, the problem instead is its development cycle.
>
> I do an example: we bought some times ago Pocket Studio for Palm OS,
> it is a brilliant suite, we feel good using it (since it has the same
> user interface as Delphi has). The problem using Pocket Studio is
> that it use Pascal as front-end language. So since the API functions
> are written in C, there is a nightmare to use some API functions
> since the Pascal has a different kind of sintax.
> Of course this could be not a true problem, since we are here
> experienced developer in C/C++ and Delphi. Unfortunately searching
> and adapting the API functions or structures to Pascal is a very time
> consuming operation.
>
> Then we are looking for something more sophisticated than a simple
> suite like Code Warrior or Palm OS DS.
>
> I'm sure that are no other way to develop an appllication using C or
> C++, but I have no experience with these two suite (CW or Palm OS
> DS), so my question was directed to understand what was the best platform.
>
> As written before, of course I'm a little worried about the old
> program style of the actual Palm OS development tools, they remember
> my old times when with Microsoft C, or Turbo C were forced to write
> the resource in a file, then link the resource to the code writing
> any kind of function and details to develop a simple application. The
> big applications as that written by us are a true nightmare...
>
> That's all, of course I will download (again) the Code Warrior to see
> if it has a better development cycle than the Palm OS suite.
>
> My best regards,
> Piero Pirrone
>
>
>
> At 23.57 18/10/2005, you wrote:
> >Given your willingness to make an investment in software,
> >and the availability of sample versions for many of these IDE's,
> >why not try one or two?
> >
> >I have taken note of the fact that there are some BASIC oriented products
> >that have
> >counterparts from the same manufacturer costing less than $200 that are
> >designed
> >for development for handheld devices running Microsoft OS.  Are you
merely
> >interested in development for Palm OS?  The manufacturer web sites for
the
> >IDE's
> >typically include a walk-through option that shows the environment.
> >
> >
> >- Original Message -
> >From: "Piero Pirrone" <[EMAIL PROTECTED]>
> >To: "Palm Developer Forum" 
> >Sent: Tuesday, October 18, 2005 10:13 AM
> >Subject: Re: CodeWarrior, Palm OS DS or what?
> >
> >
> > > Yes of course, It's not a problem to buy Code Warrior, but I need
> > > some impressions about it,
> > > since coming from advanced tools like Delphi or Borland compilers and
> > > landing on Palm OS suite or Code Warrior seems to me a kind of
> > > turning back in the 80s when using TurboC you were forced to use a
> > > resource editor to make the user interface, then to write down a lot
> > > of API calls to handles the interface gadgets.
> > >
> > > Has Code Warrior the same philosofy as Palm OS Suite has? or Code
> > > Warrior is a better environment than Palm OS Suite?
> > >
> > > It doesn't matter the costs, it merely a technical reasons...
> > >
> > > Bye,
> > > Piero
> > >
> > >
> > >
> > > At 17.07 18/10/2005, you wrote:
> > > >You can always try the free Palm OS suite, and if you don't care for
it,
> >buy
> > > >something.
> > > >
> > > >(I've used Borland Builder and VB, and am inclined to believe my
learning
> > > >curve would have
> > > >been less steep with one of the VB-like developer suites.  At the
same
> >time,
> > > >with help
> > > >from parties at this forum, I haven't hit the wall yet while learning
> >with
> > > >CodeWarrior.)
> > > >
> > > >- Original Message -
> > > >From: "Piero Pirrone" <[EMAIL PROTECTED]>
> > > >To: "Palm Developer Forum" 
> > > >Sent: Tuesday, October 18, 2005 9:15 AM
> > > >Subject: CodeWarrior, Palm OS DS or what?
> > > >
> > > >
> > > > > Hi!
> > > > >
> > > > > I'm starting writing an application using the Palm OS Developer
> > > > > Suite, but I found this suite very slow, not so easy to understand
> >(etc.
> > > >etc.)
> > > > >
> > > > > I used for a little, Pocket Studio (it use a Pascal like
language),
> > > > > but I leaved it for a C/C++ language since each function I need to
> > > > > use in Pascal must be converted from the C API.
> > > > >
> > > > > Since I'm a Borland C++ user what's the best suite CodeWarrior,
Palm
> > > > > OS Developer Suite, or something other?
> > > > >
> > > > > Bye,
> > > > > Piero
> > > > >
> > > > >
> > > > > --
> > > > > For information on using the PalmSource Developer Forums, or to
> > > >unsubscribe, please see http://www.palmos.co

Re: Perform Hard reset programmatically

[Frantisek Dufka]

[EMAIL PROTECTED] wrote:

Is any way to perform hard reset programmatically?



Just an idea. You may try to corrupt storage heap header or some other 
vital data on purpose and then call soft reset. Check MemHeapPtr and 
MemSemaphoreReserve system calls.


Frantisek

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Re: CodeWarrior, Palm OS DS or what?

[Regis St-Gelais]

"Piero Pirrone" <[EMAIL PROTECTED]> a écrit dans le message de news: 
[EMAIL PROTECTED]

> The problem using Pocket Studio is that it use Pascal as front-end 
> language. So since the API functions are written in C, there is a 
> nightmare to use some API functions since the Pascal has a different kind 
> of sintax.


On winsoft Pocket Studio web site, they say:

PocketStudio Library
make development easier by 'wrapping' the PalmOS API calls with easy-to-use, 
understandable code


This does not fit with what you are saying.

-- 
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www.laubrass.com 



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Database Access

[Del Ventruella]

I am trying to piece together code from this site's examples and a book I 
purchased on PalmOS programming.  Unfortunately, without a lot of success.  My 
goal is to be able to create and retrieve elements from database records.

I begin with:

/*
 * Global variables
 */
typedef struct {
char FirstName[10];
char LastName[10];
char PhoneNum[20];
} DBRecord;
typedef DBRecordDBRecordType;
typedef DBRecord*   DBRecordPtr;

// global database reference, will be init in AppStart() and close db in 
AppStop()
DmOpenRef   gDatabase = 0;

I then have a function to create a record:

int CreateRecord()
{
MemHandle h;
UInt16 index = 0;
DBRecordType r;

h = DmNewRecord(gDatabase, &index, sizeof(r));
StrCopy(r.FirstName, "Jun");
StrCopy(r.LastName, "Zhou");
StrCopy(r.PhoneNum, "1 555 545 4434");

if (h) { // could fail due to out of memory!
MemPtr p = MemHandleLock(h);
Err err = DmWrite(p, 0, &r, sizeof(r));
MemPtrUnlock(p);
DmReleaseRecord(gDatabase, index, true);
}
return 1;
}

Next I try to access the FirstName element of the first record:

case Save:
{
Err err=0;
Char *Tkva;
DBRecord* rec;
int back;
FieldType * field = (FieldType*)GetObjectPtr(kVA);
MemHandle myRecord = DmQueryRecord(gDatabase, 0);
back=CreateRecord();
if (!myRecord)
err = DmGetLastErr();
else
rec = (DBRecord*) MemHandleLock(myRecord);
Tkva = rec->FirstName + StrLen(rec->FirstName)+1;
MemHandleUnlock(myRecord);
if (field)
{
Char* pText = (Char*) MemPtrNew(10);  // allocate 10 bytes
FieldType * field;
Boolean redraw;
redraw=true;
SetFieldTextFromStr(field, pText, redraw);
handled=true;
break;
}


//Actions that follow if nothing is done by code
//to show data
/* Display the Transformer Box. */
//FrmDoDialog (frmP);
//FrmDeleteForm (frmP);
handled = true;
break;
}

This will compile, but when I try to run it, I receive an error message telling 
me that I have accessed low memory, and must reset.

This is probably very familiar territory to a lot of people, although my first 
time trying to work with a database
under any OS.  I'd appreciate any
recommendation with regard to how to fix this problem.

Thanks (again).


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Re: Treo 650 font problem

[Roger Stringer]

Subject: Treo 650 font problem
From: "Kristian Austad" <[EMAIL PROTECTED]>
Date: Tue, 18 Oct 2005 08:17:28 -

I can't believe I'm the only one using custom fonts on Treo 650...


You aren't


To recapture the problem: I'm using PRC-tools and pilrc. Custom 
fonts show up double height in all the UI elements. The OS defines 
the height according to the 144 resolution font and not the 72. I 
only have this problem on Treo 650.


I've managed to halve the font height on the UI elements I can 
control if running on Treo, but in text fields it shows up looking 
like double spacing.


Still hoping someone knows why this happens and what can be done to 
possibly circumvent it :-)


You do have a both a low and high density font, don't you ???

While the Treo 650 only uses the high density font, the OS 
requires the low density font to be present, I believe.





Roger Stringer
Marietta Systems, Inc. (www.rf-tp.com)


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Re: pnoJpeg2GetInfo fatal alert

[Douglas Handy]

Stefan,

>I think/hope i've found the error. The prc-File which was in the 
>zip-file was corrupt.
>
>I've uploaded a 2.11-zip-file with a new prc-file. Maybe this works.

Thanks.  Alas, unless I'm doing something wrong I'm still seeing the generic
Fatal Alert.  I am using the newer code -- the one where ARMC resource 1 is
47552 bytes long instead of the previous 7336 bytes.

Does pnoJpeg2GetInfo() complete successfully for you?  I think my calling
structure is correct, because the v1 level of the library pnoJpegGetInfo does
work, but the v2.11 does not (for me).

Doug

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Re: Preventing an application to start if already running

[Jeff Summers]

68K applications run in a single tasking OS.  So, your program can't
posssibly be already running, as only one program can run at a time.  To
get to the launcher you pretty much had to terminate your program.  Kinda
reduces the risk of viruses and such, too...
/js

In your message regarding Preventing an application to start if already
running dated Wed, 19 Oct 2005 04:26:35 +0200, Stefano Fornari said that ...

>  Hi All,
>  I need to prevent an application to start if already running. Is it
>  possible in a 68K application? How can I do it.
>  I searched already the list and the documentation, but I could not
>  find any useful information.
>  
>  Thanks in advance.
>  Stefano
>  --
>  Stefano Fornari - Sync4j Project Manager / Funambol CTO
>  ===
>  Home:
>  http://www.sync4j.org
>  FAQ:
>  http://sync4j.funambol.com/main.jsp?main=faq
>  Project Documentation:
>  http://forge.objectweb.org/docman/index.php?group_id=96
>  Documentation site:
>  http://sync4j.funambol.com/main.jsp?main=documentation
>  List archives:
>  http://groups.yahoo.com/group/Sync4j (login required)
>  http://sourceforge.net/mailarchive/forum.php?forum_id=215
>  Wiki:
>  http://wiki.objectweb.org/sync4j/
>  
>  Sync4j - The open source SyncML mobile application platform
>  
>  -- 
>  For information on using the PalmSource Developer Forums, or to unsubscribe,
please see http://www.palmos.com/dev/support/forums/
>  
>  
>  



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Re: VFSFileOpen crash

[Chris]

As Logan Shaw told me, there's no firm rules, just put it where it seems 
proper to you. The app itself if it's in the /PALM/LANCHER directory of the 
sdcard will get launched when the sdcard is put in. 

I'm pretty new to all this myself, so I'll leave it to others to answer (or 
correct my answers). 


On Wed October 19 2005 12:59 am, [EMAIL PROTECTED] wrote:
> Hi Chris,
>
>  Thank you very much for your reply. Actually I was mmissing "/" in my file
> path. can you please tell me where my application gets installed? on the
> phone or on a simulator. is there any folder created for my application? 
> suppose I want to place setting file for my application. what will be the
> best place. How can I transfer that file to the phone with my application?
>
> Can anyone please solve my querry?
>
> Thanks in Advance.
>
> ..
> KiraN Puranik

-- 
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-Calvin

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Re: ARMs problem

[cori]

   
   
  Thanks for the reply.
   
  Soft reset did not work, hence the need to get an understanding of 
  what was going on.  Did a hard reset and hot sync and all is now OK, 
  after I had done a backup with RescoBackup of course.
   
  Regards
   
  Corinne
   
  ---Original Message---
   
  
  From: Palm Developer 
Forum
  Date: Tuesday, October 
  18, 2005 22:57:16
  To: Palm Developer 
Forum
  Subject: Re: ARMs 
  problem
   Just a general advice.If the error says "could 
  not allocate memory", then I would assume that itcannot allocate 
  memory. Probably dynamic memory, I guess. Maybe some appthat did not 
  release allocated memory. (MTeam?)Find some tool that will show 
  you the amount of available memory. (I am notgoing to mention our 
  tools on this forum.)Or do the easiest thing = soft 
  reset.With best regards,Jan SlodickaResco, Palm 
  Division- Original Message - From: "Corinne" 
  <[EMAIL PROTECTED]>To: "Palm 
  Developer Forum" Sent: 
  Tuesday, October 18, 2005 6:44 AMSubject: ARMs problem> 
  I have a real problem that I have been unable to resolve in gerneral 
  Palmforums so have come to those in the know.>> I have a 
  Tungsten E2 which I have TomTom Navigation loaded to. I recentlyloaded 
  a peice of software (the game MTeam) which currupted the screen. 
  Iuninstalled it which resulted the Palm loosing its Sync name. Got the 
  Syncname back easely enough by synicing but since then TomTom will not 
  work.>> When I try to start TomTom I get the message 'ARM 
  Read: could not allocatememory' and can do nothing more with 
  it.>> I uninstalled TomTom, reloaded it but the problem 
  remains.>> All other software is working 
  fine.>> Any ideas will very greatfully 
  recieved!>>> -- > For information on using the 
  PalmSource Developer Forums, or tounsubscribe, please see http://www.palmos.com/dev/support/forums/-- 
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  unsubscribe, please see http://www.palmos.com/dev/support/forums/.





	
	
	
	
	
	
	






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Re: VFSFileOpen crash

[Logan Shaw]

[EMAIL PROTECTED] wrote:

 Thank you very much for your reply. Actually I was mmissing "/" in my
file path. can you please tell me where my application gets installed?
on the phone or on a simulator. is there any folder created for my
application?  suppose I want to place setting file for my application.
what will be the best place. How can I transfer that file to the phone
with my application?


I'm not sure if you mean a configuration file or a preferences file.

If you want to do a configuration file, the usual way to do different
configurations on the Palm is to do different builds of your program.
You can either change constants in your source code or change some
of the resources in the PRC and have the program check those.
By including the information in the executable PRC, you reduce the
installation hassle for the user and keep things simple, which is an
important goal on the Palm.

If you want to do preferences (user settings), then the normal Palm
way to do it is to use the Preferences calls, like PrefGetAppPreferences()
and PrefSetAppPreferences().

If you really want to do a separate file, then things get trickier.
Since not all devices have a filesystem (some don't have an SD Card slot
or built-in flash; some have an SD Card slot but the owner doesn't
have an SD Card to put in the slot), if you want to support all devices,
then you cannot do it is a file and you must do it as a database.
In that case, the easiest thing is to create a PDB or a PRC that is
installed along with your executable PRC.

As for where your application (and other files) are installed, it
depends.  If the user takes no action at all, it will be installed
in the storage heap, i.e. internal to the device and not on a
filesystem.  But it can also be installed on SD Card or on another
VFS volume.  If it's on another VFS volume, the directory it's
located in depends on the VFS volume.  On most, it's in /PALM/Launcher,
but on some others it's in /Applications.  I believe you use
VFSGetDefaultDirectory() to find the actual directory for a given
VFS filesystem.  No special directory is created for your application.
Its PRC and any other databases you install (including other
applications) all go in the same directory together.

  - Logan

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Re: VFSFileOpen crash

[Logan Shaw]

Chris wrote:
As Logan Shaw told me, there's no firm rules, just put it where it seems 
proper to you. The app itself if it's in the /PALM/LANCHER directory of the 
sdcard will get launched when the sdcard is put in. 


Close, except (1) it's not always /Palm/Launcher, and you need to check
VFSGetDefaultDirectory() to know which directory it actually is, and
(2) it will not be launched automatically when the card is put in, but
the launcher will automatically start when a card is inserted and will
show everything in that directory as a category.

If you want to auto-launch an application, you need to create a
start.prc on the card.

  - Logan

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Re: Database Access

[Logan Shaw]

Del Ventruella wrote:

Next I try to access the FirstName element of the first record:

case Save:
{
Err err=0;
Char *Tkva;
DBRecord* rec;
int back;
FieldType * field = (FieldType*)GetObjectPtr(kVA);
MemHandle myRecord = DmQueryRecord(gDatabase, 0);
back=CreateRecord();


I'm not sure why you are creating a record right after you just located
a record, but that shouldn't cause a crash.


if (!myRecord)
err = DmGetLastErr();
else
rec = (DBRecord*) MemHandleLock(myRecord);
Tkva = rec->FirstName + StrLen(rec->FirstName)+1;


Not really sure what you're trying to do with this pointer, but it
doesn't seem to be used later anyway, so it probably does not matter.
However, it is important that rec->FirstName contains a valid string.
If it doesn't, then StrLen() might crash.


MemHandleUnlock(myRecord);


This and the line above it should be inside the else clause of the
"if (!myRecord)" if-statement.  If it isn't, then when you fail to
find a record, you will not try to lock it, but you will try to do
the other things you should only do after you lock it (read from
the record and unlock it).  You could change it to this:

if (!myRecord)
err = DmGetLastErr();
else
{
rec = (DBRecord *) MemHandleLock (myRecord);
Tkva = rec->FirstName + StrLen (rec->FirstName)+1;
MemHandleUnlock(myRecord);
}

On the other hand, even that code is a bit nonsensical, since
the expression "rec->FirstName" has a pointer value, and that
pointer value is desired from a locked pointer.  So the pointer
value stored in Tkva is no longer valid after you do the
MemHandleUnlock().  (So why compute it then?)


if (field)
{
Char* pText = (Char*) MemPtrNew(10);  // allocate 10 bytes
FieldType * field;
Boolean redraw;
redraw=true;
SetFieldTextFromStr(field, pText, redraw);


Here you have just allocated 10 bytes, left them full of whatever
garbage the system put in them, and then passed a pointer to the
garbage to something (SetFieldTextFromStr()) which is expecting a
string.  This could cause a crash because there is no guarantee
that the garbage contains a null terminator byte like a C string must.

  - Logan

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Button text not moving with form

[Davie Lau]

I have a form with buttons on it.  I am moving the form with 
WinSetWindowBounds.  The buttons move but the button text does not.  The text 
stays in its original place.  Thanks for any advice.
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Re: cannot reproduce LifeDrive bug

[Brian]

It runs fine on the Palm 5.2 and 5.3 Debug and Release Simulators, as well as 
on my m515.
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hiding a label

[cbruner]

I'm updating a label during a calculation, and then when the calculation is 
done, I'm hiding the label, and showing a button.
The way I'm doing it now seems stupid. (writing blanks). There must be a 
better way, but simply hiding the label doesn't seem to work.

What is the best way to hide a label once it has been shown on the screen?

{
/// Hide the Feedback label

fieldIndex = FrmGetObjectIndex(MainfrmP,MainCompareNowLabel);
Control = (ControlType *)FrmGetObjectPtr(MainfrmP,fieldIndex);
CtlSetLabel(Control,"");   This is the 
only way it will clear the area

FrmShowObject(MainfrmP,fieldIndex);
FrmHideObject(MainfrmP,fieldIndex);

/// Show Button
fieldIndex = FrmGetObjectIndex(MainfrmP,MainCompareNowButton);
FrmShowObject(MainfrmP,fieldIndex);
FrmUpdateForm(FrmGetObjectIndex(MainfrmP,MainForm),frmRedrawUpdateCode);

}

Chris Bruner
Compulife Software Inc.
== 



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RE: Memory allocation

[Gnadinger, David]

I'm beating my head against the wall again. At certain times pq will already be 
in use. I have code to free the memory for reuse. Here's the setup (briefly):

PQ *pq;
PQ *tpq;

...
tpq = (PQ *) MemPtrNew(order * sizeof(PQ));
tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
...
(load data into tpq & tpq->items
...
pq = (PQ *) MemPtrNew(order * sizeof(PQ));
MemMove(pq, tpq, sizeof(PQ));

At this point, the data is tpq is correct, but there is still no data in pq. 
Why is the call to MemMove() failing?

Thanks.

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re: Treo 650 font problem

[Kristian Austad]

Thanks for replying Roger,

Yes, I've defined FONTFAMILY using one 72 res font and one 144 font that 
correspond, i.e. the height and width of the 72 res font is exactly half that 
of the 144 res font for each character.

FONTFAMILY ID Verdana10
BEGIN
  FONT "verdana 10_lo.pfn" DENSITY 72
  FONT "verdana 10.pfn" DENSITY 144
END

This works fine on all other models, but not on Treo 650.

Kristian

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RE: Memory allocation

[Dean Gahlon]

On Wed, 19 Oct 2005, Gnadinger, David wrote:

> I'm beating my head against the wall again. At certain times pq will already 
> be in use. I have code to free the memory for reuse. Here's the setup 
> (briefly):
>
> PQ *pq;
> PQ *tpq;
>
> ...
> tpq = (PQ *) MemPtrNew(order * sizeof(PQ));
> tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
> ...
> (load data into tpq & tpq->items
> ...
> pq = (PQ *) MemPtrNew(order * sizeof(PQ));
> MemMove(pq, tpq, sizeof(PQ));
>
> At this point, the data is tpq is correct, but there is still no data in pq. 
> Why is the call to MemMove() failing?
>
> Thanks.
>
> --
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> please see http://www.palmos.com/dev/support/forums/
>

You're only copying one PQ's worth of data from tpq to pq. If you want to
copy all of tpq into pq, your MemMove statement should be

MemMove(pq, tpq, order * sizeof(PQ));


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Re: Memory allocation

[Aaron Ardiri]

On 10/19/05, Gnadinger, David <[EMAIL PROTECTED]> wrote:
> I'm beating my head against the wall again. At certain times pq will already
> be in use. I have code to free the memory for reuse. Here's the setup 
> (briefly):
>
> PQ *pq;
> PQ *tpq;
>
> ...
> tpq = (PQ *) MemPtrNew(order * sizeof(PQ));
> tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
> ...
> (load data into tpq & tpq->items
> ...
> pq = (PQ *) MemPtrNew(order * sizeof(PQ));
> MemMove(pq, tpq, sizeof(PQ));
>
> At this point, the data is tpq is correct, but there is still no data in pq. 
> Why
> is the call to MemMove() failing?

if you use the MemMove, you'll find that pq->items == tpq->items.
if you really want to copy the structure, you need to do this:

pq = (PQ *) MemPtrNew(order * sizeof(PQ));

// copy the pq structure (pointers still point to pq->items)
MemMove(pq, tpq, sizeof(PQ));

// allocate pq->items, and then copy the contents over
tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
MemMove(pq->items, tpq->items, sizeof(ITEM));

maybe thats your problem? you need to do a deep copy.

--
// Aaron Ardiri

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RE: Memory allocation

[Gnadinger, David]

Sorry. My mistake in the example. I am currently only dealing with one pq 
structure, so they both do the same thing. I changed it, though, to agree and 
made it "order * sizeof(PQ)", but I still get the same results: tpq is never 
copied to pq.

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RE: Memory allocation

[Gnadinger, David]

That didn't work. I tried exactly what you suggested, except the item 
allocation line, you had tpq->items by mistake. Here's what I have now:
PQ *tpq;
PQ *pq;
...
pq = (PQ *) MemPtrNew(sizeof(PQ));
MemMove(pq, tpq, sizeof(PQ));
pq->items = (ITEM *) MemPtrNew(item * sizeof(ITEM));
MemMove(pq->items, tpq->items, sizeof(ITEM));
...

I am baffled why it isn't working. I check a couple of variables in tpq, step 
past the MemMove() call and check the same variables in pq, and the values 
aren't there. Keep in mind that pq and tpq are both structures of the same 
type. I have typedef'ed them to PQ and ITEM respectively as such:

typedef struct d_item {
...
} ITEM;

typedef struct d_pqrec {
...
} PQ;

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RE: Memory allocation

[Gnadinger, David]

PQ *pq; is a global variable.
PQ *tpq; is a local variable to the function that this code is in. Is the 
something different in palm programming about global vs. local variables? I 
have 3 segments in this program.

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Re: Memory allocation

[Dean Gahlon]

On Wed, 19 Oct 2005, Aaron Ardiri wrote:

> On 10/19/05, Gnadinger, David <[EMAIL PROTECTED]> wrote:
> > I'm beating my head against the wall again. At certain times pq will already
> > be in use. I have code to free the memory for reuse. Here's the setup 
> > (briefly):
> >
> > PQ *pq;
> > PQ *tpq;
> >
> > ...
> > tpq = (PQ *) MemPtrNew(order * sizeof(PQ));
> > tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
> > ...
> > (load data into tpq & tpq->items
> > ...
> > pq = (PQ *) MemPtrNew(order * sizeof(PQ));
> > MemMove(pq, tpq, sizeof(PQ));
> >
> > At this point, the data is tpq is correct, but there is still no data in 
> > pq. Why
> > is the call to MemMove() failing?
>
> if you use the MemMove, you'll find that pq->items == tpq->items.
> if you really want to copy the structure, you need to do this:
>
> pq = (PQ *) MemPtrNew(order * sizeof(PQ));
>
> // copy the pq structure (pointers still point to pq->items)
> MemMove(pq, tpq, sizeof(PQ));
>
> // allocate pq->items, and then copy the contents over
> tpq->items = (ITEM *) MemPtrNew(sizeof(ITEM));
> MemMove(pq->items, tpq->items, sizeof(ITEM));
>
> maybe thats your problem? you need to do a deep copy.
>
> --
> // Aaron Ardiri

My original advice to him, based on the program fragments posted thus far,
was that tpq was only used as a temporary variable while increasing the
size of the structure. Because of that, I didn't recommend doing a deep
copy. Maybe this was a mistake.

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RE: Memory allocation

[Dean Gahlon]

On Wed, 19 Oct 2005, Gnadinger, David wrote:

> That didn't work. I tried exactly what you suggested, except the item 
> allocation line, you had tpq->items by mistake. Here's what I have now:
> PQ *tpq;
> PQ *pq;
> ...
> pq = (PQ *) MemPtrNew(sizeof(PQ));
> MemMove(pq, tpq, sizeof(PQ));
> pq->items = (ITEM *) MemPtrNew(item * sizeof(ITEM));
> MemMove(pq->items, tpq->items, sizeof(ITEM));
> ...
>
> I am baffled why it isn't working. I check a couple of variables in tpq, step 
> past the MemMove() call and check the same variables in pq, and the values 
> aren't there. Keep in mind that pq and tpq are both structures of the same 
> type. I have typedef'ed them to PQ and ITEM respectively as such:
>
> typedef struct d_item {
> ...
> } ITEM;
>
> typedef struct d_pqrec {
> ...
> } PQ;

I'm not entirely sure if you're responding to my message or someone
else's. Quoting at least something from the message you're responding to
helps.

At any rate, this is making exactly the same mistake as in your previous
problem: you're allocating a number of blocks of data, then copying just
one block of data.

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RE: Memory allocation

[Dean Gahlon]

On Wed, 19 Oct 2005, Gnadinger, David wrote:

> Sorry. My mistake in the example. I am currently only dealing with one pq 
> structure, so they both do the same thing. I changed it, though, to agree and 
> made it "order * sizeof(PQ)", but I still get the same results: tpq is never 
> copied to pq.
>

It's very hard to tell what's going on with your program when all we see
of it is dribs and drabs. Maybe if sent a complete function with all of
the structure declarations, we could see what your problem is.

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determining the foreground program

[Andrew]

How can one determine what program is running for an application that has been 
called by the alarm manager, to determine if the program wants to launch or 
not/reschedule relaunch, etc...



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Re: determining the foreground program

[Jeff Summers]

If you control the program (if the program is yours) you can set a flag in
a DB on startup, clear on shutdown, and check that flag in the alarm
routine.
/js

In your message regarding determining the foreground program dated Wed, 19
Oct 2005 22:06:12 -, Andrew said that ...

>  How can one determine what program is running for an application that has
been called by the alarm manager, to determine if the program wants to launch
or not/reschedule relaunch, etc...
>  
>  
>  
>  -- 
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>  
>  
>  



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Re: Memory allocation

[Logan Shaw]

Gnadinger, David wrote:

That didn't work. I tried exactly what you suggested, except the item allocation 
line, you had tpq->items by mistake. Here's what I have now:
PQ *tpq;
PQ *pq;
...
pq = (PQ *) MemPtrNew(sizeof(PQ));
MemMove(pq, tpq, sizeof(PQ));
pq->items = (ITEM *) MemPtrNew(item * sizeof(ITEM));
MemMove(pq->items, tpq->items, sizeof(ITEM));
...

I am baffled why it isn't working.


Change your code to this:

Int32 pqsize, itemsize, copysize;

pqsize = sizeof(PQ);
pq = (PQ *) MemPtrNew (pqsize);

MemMove(pq, tpq, pqsize);

itemsize = item * sizeof(ITEM);
pq->items = (ITEM *) MemPtrNew(itemsize);

copysize = sizeof(ITEM);
MemMove(pq->items, tpq->items, copysize);

Then step through line by line in the debugger and look at the
values of pqsize, itemsize, and copysize as they are computed
and make sure they are really the size you think they should be.

By the way, I also don't get why you would allocate more space
for pq->items than you ever use.  It seems like itemsize and
copysize should be the same number; otherwise, you are just
allocating space that you never need, or (to look at it the
other way) failing to fill up all the space you allocated.

  - Logan

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Re: CodeWarrior, Palm OS DS or what?

[Jon Springs]

Have a look at OrbForms ( http://www.orbworks.com/ ). Very much Delphi-like, 
inexpensive, good support, etc.

Also, C language.

-Jon-

"Piero Pirrone" <[EMAIL PROTECTED]> wrote in message 
news:[EMAIL PROTECTED]
> Hi!
>
> I'm starting writing an application using the Palm OS Developer Suite, but 
> I found this suite very slow, not so easy to understand (etc. etc.)
>
> I used for a little, Pocket Studio (it use a Pascal like language), but I 
> leaved it for a C/C++ language since each function I need to use in Pascal 
> must be converted from the C API.
>
> Since I'm a Borland C++ user what's the best suite CodeWarrior, Palm OS 
> Developer Suite, or something other?
>
> Bye,
> Piero
>
> 



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Re: determining the foreground program

[Andrew]

I apologize for not making myself more clear.  How can I make my program know 
that a certain application is open (like the phone app on the treo) so I can 
reschedule the alarm for a more convenient time?  pxaclocker gets notified and 
can take appropriate actions whenever an application is opened and changes cpu 
parameters.  Is the only way to not bother a user while the phone app is open 
to watch every application that opens and take note of it and deal with it 
accordingly when the program is woken up, or is there some way to find out the 
current foreground app without doing previous due diligence?  

thank you for your response,
andrew


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Re: determining the foreground program

[Robert Moynihan]

Andrew wrote:


Is the only way to not bother a user while the phone app is open to watch every 
application that opens and take note of it and deal with it accordingly when 
the program is woken up

I believe this is correct.  There doesn't seem to be a good way to 
detect which app is in the foreground when your app becomes active by a 
non-normal launch code.  So, if you want to know which app is current, 
you have to monitor all launches and keep a record of the last app to 
launch.  A hassle, to be sure, but not overly difficult.  Bob


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Re: determining the foreground program

[Logan Shaw]

Andrew wrote:

I apologize for not making myself more clear.  How can I make my
program know that a certain application is open (like the phone
app on the treo) so I can reschedule the alarm for a more convenient
time?  pxaclocker gets notified and can take appropriate actions
whenever an application is opened and changes cpu parameters.  Is
the only way to not bother a user while the phone app is open to
watch every application that opens and take note of it and deal
with it accordingly when the program is woken up, or is there some
way to find out the current foreground app without doing previous
due diligence?


Well, this is just an idea, but it seems like it might work.

It seems like you should be able to call DmNextOpenResDatabase() in
a loop and see if any of the ones you find is a database of type 'appl'.
Then maybe check if it has a 'code'/0 resource (and a 'tAIB'/1000
and 'tAIN'/1000 and 'tver'/1000 resource) to ensure it really looks
like an app.  If you find exactly one of those, that has to be the
app that's running, because when an app is running, its resource
database must be open.

This won't cover all cases[1], but if your goal is only to avoid
popping up annoying stuff while a certain app is running, it might
be good enough to avoid popping it up whenever that resource database
is open, whether the app is running or not.

  - Logan

[1]  because what if you're running, say, RsrcEdit or FileZ or even
 some launcher and it has another app's database open?  or what
 if some app intentionally leaves its resource database open so
 it can have some locked code in it that can respond to
 notifications?

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Help: Focus on buttons & 5way Navig. in a Form:

[babbu cathy]

Hi all,

Can anyone please clarify my below doubts. I am stange
in this.

1. I didn't code for 5way navigation support in my
project, but still navigation is working properly in
some forms. So, DO I NEED TO DO 5 WAY CODE AGAIN TO
THAT FORMS, SINCE ALREADY IT'S TAKEN THE NAVAIGATION
AUTOMATICALLY IN PROPER WAY ?

2. DO I NEED TO DO 5-WAY NAVIG. CODE FOR "MODAL FORMS"
OR I HEARD MODAL FORMS ARE TAKEN THE 5 WAY NAVIG.
AUTOMATICALLY, IS THIS CORRECT ?


- cathy.




__ 
Yahoo! India Matrimony: Find your partner now. Go to http://yahoo.shaadi.com

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Re: cannot reproduce LifeDrive bug

[Alan Ingleby]

The obvious conclusion here is that NVFS devices truly suck.  I've had
no end of porblems with subtle stability bugs.

Is there a local Palm rep you can contact to get a loan device?  I
know we've always been able to do that in the past, but I'm in
Australia, and I don't know if things work differently where you are.

Alan

On 10/20/05, Brian <[EMAIL PROTECTED]> wrote:
> It runs fine on the Palm 5.2 and 5.3 Debug and Release Simulators, as well as 
> on my m515.
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Re: Help: Focus on buttons & 5way Navig. in a Form:

[Ben Combee]

1. I didn't code for 5way navigation support in my
project, but still navigation is working properly in
some forms. So, DO I NEED TO DO 5 WAY CODE AGAIN TO
THAT FORMS, SINCE ALREADY IT'S TAKEN THE NAVAIGATION
AUTOMATICALLY IN PROPER WAY ?


The system won't turn on object navigation for non-modal forms by default, 
only for modal forms.



2. DO I NEED TO DO 5-WAY NAVIG. CODE FOR "MODAL FORMS"
OR I HEARD MODAL FORMS ARE TAKEN THE 5 WAY NAVIG.
AUTOMATICALLY, IS THIS CORRECT ?


Five-way navigation maps are automatically produced for modal forms.  You 
should provide a fnav resource if your modal form has special needs or if 
you want the initial focus to be on something other than the default button.


-- Ben Combee, Senior Software Engineer, Palm, Inc.
   "Combee on Palm OS" weblog: http://palmos.combee.net/
   Developer Forum Archives:   http://news.palmos.com/read/all_forums/


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re: Button text not moving with form

[Davie Lau]

Here's my code:

void MoveFormHorizontal(FormType *frmP, UInt16 x)
{
  RectangleType rect;
  WinHandle winH = FrmGetWindowHandle(frmP);

  WinGetBounds (winH, &rect);
  
  rect.topLeft.x = x;
  WinSetWindowBounds(winH, &rect);
}

RectangleType frmBounds;
FormType* frmLookupP = FrmInitForm(LookupForm);
FrmSetActiveForm(frmLookupP);   

//Position the form 
FrmGetFormBounds(frmLookupP, &frmBounds);
MoveFormHorizontal(frmLookupP, GetScreenWidth() -frmBounds.extent.x);   //move 
to right side of screen  
MoveFormVertical(frmLookupP, (GetScreenHeight() - frmBounds.extent.y) / 2);  
//center vertically
// Set Title
FrmSetTitle(frmLookupP, lookupFormTitleStr);

//set the active form back to the question form 
FrmSetActiveForm(frmP); 

buttonTapped = FrmDoDialog(frmLookupP);

The problem is that the form moves to the right side of the screen like it 
should, but the button text and form title don't move with it.  I know the 
buttons have moved because I can click on them but the text is not lined up 
with the position of the buttons.
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Updating cygwin

[ff]

Hello,

I loaded the Palm OS dev kit with its own cygwin on a Win XP laptop.  However, 
I also need perl and other cygwin tools, so I tried to install them w/o 
overriding any of the installed files.  However, now when I start a shell, I 
get the message "the procedure entry point _impure_ptr could not be located in 
the dynamic link library cgywin1.dll".  Would appreciate any help in 
determining the problem, or else advice on how to have palm modified cygwin and 
install other tools.

Thanks!
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Re: VFSFileOpen crash

[kiranp]

Hi Logan,

 Thanks a lot for your detailed response. A lots of basics got cleared form 
your response. I just wanted to ask one more thing .. can we attach a file with 
an application? i.e. with PRC. means after I install my application on the 
device, it should also copy my file on to the device( I should be able to get 
the file path ).

So that if needed I can only update that file. to update my applications GUI or 
any other stuff.

thank you very much again.


..
KiraN Puranik
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Re: VFSFileOpen crash

[Logan Shaw]

[EMAIL PROTECTED] wrote:

 Thanks a lot for your detailed response. A lots of basics got cleared form
your response. I just wanted to ask one more thing .. can we attach a file
with an application? i.e. with PRC. means after I install my application on
the device, it should also copy my file on to the device


If you have to have a separate file, this will make the install process
more complicated.

You have three choices:
(1)  Tell the end user to install both files.
(2)  Use an installer, like the PalmSource Installer:
http://www.palmos.com/dev/tools/installer/
(3)  Put an image of the extra file into your app (as a resource) and
 then use DmCreateDatabaseFromImage().  This only works well if
 the separate file is small.

> ( I should be able to get the file path ).

If it is installed in the storage heap (internal to the Palm) and not on
a VFS device, there will be no path.  You will need to use DmOpenDatabase()
or DmOpenDatabaseByTypeCreator() to open it.

If it is installed on a VFS filesystem (like an SD Card), then there will
be a path.  You will need to choose a policy of which filesystem to search
first in case there is more than one VFS filesystem.  (For example, on
the T5, there is an internal flash filesystem and there can be an SD Card
as well.)  You will also need to choose which directory to search.  I
believe the directory that the HotSync will choose for a given VFS
filesystem can be determined by using VFSGetDefaultDirectory() and
passing ".PDB" or ".PRC" as the second argument.

One further complication with external files is launching an app from a
VFS filesystem.  If you put your application's PRC on a VFS filesystem
in the directory that the launcher searches, the launcher will be able
to launch it for you.  It does this by copying the PRC to the storage
heap, launching, then removing the app after it exits.  Thus, as the
developer this is handled automatically for you, and usually you don't
need to worry with whether your application resides on VFS or in the
storage heap.  However, to my knowledge the launcher does not copy any
accompanying files and there is no way to make it do so.

Many people solve this problem by requiring accompanying files to ONLY
be in the storage heap and not on a VFS filesystem.  This makes coding
simpler, but it is one more thing for the end user to understand and
keep track of.

  - Logan

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Re: Updating cygwin

[Aaron Ardiri]

> I loaded the Palm OS dev kit with its own cygwin on a Win XP laptop.  
> However, I also need
> perl and other cygwin tools, so I tried to install them w/o overriding any of 
> the installed files.

try installing it "with" overriding the installed files. you can
actually connect to the server
and upgrade all components. if you have an older version it'll say
"Install" to the new version.
the cygwin dll's have changed a little over the years - bringing some
incompatibilities.

i normally just download setup.exe - download to harddrive and install
from harddrive.
its only 400mb to get everything downloaded (doesn't take long) and
then i have *everything*
i need (or, what i even dont need) thats acceptable with the current version.

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// Aaron Ardiri

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