On 21.08.2011, at 20:30, Greg Ercolano wrote:
> On 08/21/11 09:22, asif saeed wrote:
>> Hi,
>>
>> Is there any way I could prevent my widgets from getting added to fltk
>> groups automatically and have the ability to add fltk widgets to fltk groups
>> myself - dynamically?
>
> begin() and end() are the way to control this.
>
> If you end() the parent window, for instance, then widgets
> will be created but not attached to a parent, in which case
> to attach them, you can use the appropriate Fl_Group::add(Fl_Widget*)
> to parent them, which is something you should do quickly, otherwise
> the widget might pop up in a window of its own.
No, sorry, that's not true. Fl_Group::end() basically calls begin() on the
parent group, for example:
group1 = new Fl_Group();
btn1 = new Fl_Button();
group2 = new Fl_Group();
btn2 = new Fl_Button();
group2->end();
btn3 = new Fl_Button();
group1->end();
btn3 will be added to group1, as indicated by the indentation.
The only way to temporarily disable auto-adding is calling
Fl_Group::current(0L) right after creating any group style widget.
- Matthias
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