Re: MemoryMgr.c, Line 4365, NULL handle

[Matt Graham]

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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