Hello,
by looking at the source code of the Palm OS MemoryMgr.c (available as part
of the limited Palm OS sources download) this message means that
you passed NULL handle to one of the functions MemHandleLock /
MemHandleUnlock / MemHandleFree / MemHandleResize etc. (The other functions
that can emit this message are used very seldom.)
Regards,
Jan Slodicka
----- Original Message -----
From: "Matt Graham" <[EMAIL PROTECTED]>
Newsgroups: palm-dev-forum
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Friday, March 19, 2004 6:11 PM
Subject: Re: MemoryMgr.c, Line 4365, NULL handle
> Mike Gagne wrote:
> > I originally thought that this problem was brought about by the compiler
I
> > was using, because at work I was using CodeWarrior for PalmOS 8.0 and at
> > home I was using CodeWarrior for PalmOS 9.0.
>
> Probably not your compiler.
>
>
> > The SAME code would compile and work correctly from home, but would
generate
> > the memory error if it was compiled at work.
>
> I would guess you were just getting lucky at home.
>
>
> > The error (MemoryMgr.c, Line4365, NULL handle) is generated during this
> > function, on line 7:
>
> Which is line 7?
> It's hard to say what's wrong, but I'll give a couple guesses.
>
> > static Boolean SetPassword(void)
> > {
> > Boolean retval;
> > MemPtr password;
> > MemHandle passH;
> >
> > passH = MemHandleNew(12);
> If you're getting the error on the MemHandleLock(), you may consider
> checking for passH == 0 before trying to lock it.
> > password = MemHandleLock(passH);
>
> This line looks questionable. First you set password to a new locked
> handle, then you set it = GetField(). What does GetField() do?
> > password = GetField(MainForm, MainTxtPasswordField);
> >
> > if (password == NULL)
> > retval = false;
> > else
> > if (StrLen(password) < 4)
> > retval = false;
> > else
> > {
> > StrCopy(g_prefs.MyPass, password);
> > retval = true;
> > }
> >
> > MemHandleUnlock(passH);
> > MemHandleFree(passH);
> >
> > return retval;
> > }
>
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