On Sunday 01 October 2017 12:26:19 fredvs wrote: > > I want to assign a event only when the button is released. > > I did try with this tslider.onsetvalue: > > procedure tsongplayer2fo.changepos(const Sender: TObject; var avalue: > realty; var accept: boolean); > begin > if accept then > uos_InputSeek(theplayer, Inputindex, trunc(avalue * Inputlen)); > end; > > But that way, "accept" is always true, even when the button is not > released. > The purpose of "accept" is to reject a value. Set it to false if you don't accept the value. Right button click is normally used to show a popup menu. It is possible to "preview" all mouse messages by tform.onchildmouseevent, check for " (sender = <theslider>) and (ainfo.eventkind = ek_buttonrelease) and (ainfo.button = mb_right); " Martin
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