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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