Re: [ROOT] TGListBox::Selected()

From: Valeriy Onuchin (Valeri.Onoutchine@cern.ch)
Date: Sat Jul 19 2003 - 20:08:39 MEST


 Hi Christian,
OK, I see. Yes, it's quite easy to add 
in a way you suggested. Be done asap.

Regards. Valeriy


> Dear Valeriy
> 
> Your example is a TGComboBox, but I mean TGListBox.
> Assume, that the vertical size of TGListBox has space for
> ten entries, but it does only contain 4 entries. Clicking on
> one entry selects this entry, but clicking in the empty space
> below the entries deselects the selected entry. In this case
> Selected() should emit -1.
> 
> Best regards
> Christian
> 
> Valeriy Onuchin wrote:
> 
> > Hi Christian,
> >this question is not clear for me. Check HTML listbox 
> >("Modified within the last:") in
> >http://carrot.cern.ch/CarrotExamples/FormTest.C
> >it has an empty entry for deselecting items. Is this effect what
> >you talking about? 
> >
> >Thanks. Regards. Valeriy
> >
> >
> >  
> >
> >>Dear Rooters
> >>
> >>I would like to enable a button only, when I select an item in
> >>TGListBox, but disable the button when deselecting all items
> >>by clicking in the white space.
> >>Sorrowly, the signal TGListBox::Selected() is only emitted,
> >>when an item is selected. Is there a way to deselect the button?
> >>
> >>I am not sure but maybe adding the following in TGListBox::
> >>ProcessMessage() could help:
> >>   if(entry)
> >>      ......
> >>      Selected((Int_t) parm1);
> >>   else
> >>      Selected((Int_t) -1);
> >>
> >>Thank you in advance
> >>Best regards
> >>Christian
> >>_._._._._._._._._._._._._._._._
> >>C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a
> >>V.i.e.n.n.a       A.u.s.t.r.i.a
> >>_._._._._._._._._._._._._._._._
> >>
> >>
> >>
> >>    
> >>
> >
> >
> >
> >  
> >
> 
> 
> 



This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:13 MET