Ahh, see I knew it was a stupid problem. I am using the callback draw
function. Duh.
Thanks for the reply!
-Mike
"Ben Combee" <[EMAIL PROTECTED]> wrote in message
news:26927@palm-dev-forum...
>
> > What I want to do is retreive the text in a list.
> >
> >
> > void MyFunction()
> > {
> > Word HitButton;
> > Word indx;
> > ListPtr list;
> > FormPtr frm;
> > char* tmp ;
> >
> > frm = FrmGetActiveForm();
> >
> > list =
> > (ListPtr)FrmGetObjectPtr(frm,FrmGetObjectIndex(frm,ViewLogsDBListList));
> > indx = LstGetSelection (list);
> > tmp = LstGetSelectionText (list, indx); // return pointer to
text
> in
> > list
> > HitButton = FrmCustomAlert(LogDeleteAlert, tmp, NULL , NULL);
> > }
> >
> > I get a "app read from low memory" error when it gets to the
> > "LstGetSelectionText" line. "List" is a valid ListPtr and "indx" = the
> > index of the item in the list.
>
> 1) Make sure you're not getting a "-1 == noListSelection" from
> LstGetSelection, which would happen if nothing is selected in the list.
>
> 2) LstGetSelectionText only works if you've got real text entries in the
> list. If you're using a custom draw function, then there is no backing
list
> of strings from which to grab.
>
> > Another questions is why in all the examples I never see
FrmGetObjectPtr,
> or
> > other functions that return void pointers, needing to be typecasted to
the
> > type of the pointer that is being set? But if I do that I get a "cannot
> > convert void* to [insert type here]*" error when I compile?
>
> If you're in C++, you'll get this message. In C, "void *" silently
converts
> to any other pointer type, so you get no warning.
>
>
>
>
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