Hi Christian, it will be done in some way. it's OT: ROOT GUI needs such a "provocative" user as you ;-) Thanks. Regards. Valeriy > Dear Valeriy > > Thank you, great. > Sorrowly, it will probably be not so easy, since my suggestion > will probably not work: I realized that clicking in the white > space seems NOT to activate TGListBox::ProcessMessage(). > > Best regards > Christian > > Valeriy Onuchin wrote: > > > 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 > >>>>_._._._._._._._._._._._._._._._ > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>> > >>> > >>> > >> > >> > >> > > > > > > > > > > > > >
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