# To subscribers of the xforms list from Steve Lamont <spl@ncmir.ucsd.edu> :
> I have 2 text fields and a button. I need it so that the button, when
> pressed, does an atoi on those 2 text fields. ...
> [...]
> void CB_Btn_Routine(...)
> {
> char *f1, *f2;
> f1 = atoi(fl_get_input(field1)); // <- How do I get address/etc of
> this field?
If your Input objects are in the same Form as the Button object, and
you used `fdesign' to create the form specification[1], then you can do
void your_callback( FL_OBJECT *obj, long parm )
{
FD_your_form_structure *fd_your_form_structure =
( FD_your_form_structure *) obj->form->fdui;
int f1;
int f2;
f1 = atoi( fl_get_input( fd_your_form_structure->field1 ) );
f2 = atoi( fl_get_input( fd_your_form_structure->field2 ) );
[...]
}
Each FL_OBJECT structure has a pointer member pointing back to the form
which contains it and the FL_FORM structure has a pointer to the an
object of type `FD_any', which can be cast to your form definition
structure.
spl
[1] If you didn't then things are a bit more complicated, depending on
what data structures you chose to design to contain the description of
the Form, however most folks just use `fdesign', I'd wager.
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