Here is it: http://bugs.freepascal.org/view.php?id=20381
2014-11-21 22:24 GMT-02:00 Fabio Luis Girardi <fluisgira...@gmail.com>: > I found this bug on bug tracker. I followed your idea and send a patch > that solves this. I'll try another approach tomorrow. > > Thank you very much! > Em 21/11/2014 20:48, "Frederic Da Vitoria" <davito...@gmail.com> escreveu: > > 2014-11-21 16:01 GMT+01:00 Frederic Da Vitoria <davito...@gmail.com>: >> >>> >>> 2014-11-20 19:21 GMT+01:00 Fabio Luis Girardi <fluisgira...@gmail.com>: >>> >>>> I don't know if this is a bug or not. I created a control from a >>>> TCustomControl that draws a polyline with a transparent background. The >>>> transparent effect has been using SetShape procedure using a bitmap of 1 >>>> bit color depth. >>>> >>>> The "bug" (I don't know if this is a bug) is that a TImage behind of a >>>> instance of my polyline control don't receive the click messages, but a >>>> TButton instance receives. >>>> >>>> So, I don't know if this is a bug or I have to do something in my >>>> control to send these messages to TImage behind. >>>> >>> >>> I had once a similar issue with a tPanel behind another control, in >>> Delphi. IIRC, I indeed had to forward the messages in some way to the >>> tPanel. I can check in my archives, if you want, but I won't be able to do >>> it before tomorrow. >>> >> >> I just checked. Sorry, my memory was wrong, I did use TButtons. But it >> makes sense that the uppermost control would prevent any deeper control >> from receiving clicks, even if the uppermost control is visually >> transparent. >> >> -- >> Frederic Da Vitoria >> (davitof) >> >> Membre de l'April - « promouvoir et défendre le logiciel libre » - >> http://www.april.org >> > -- The best regards, Fabio Luis Girardi PascalSCADA Project http://sourceforge.net/projects/pascalscada http://www.pascalscada.com
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