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Re: Problem with mouse EventHandler on linux

  • To: mathgroup at smc.vnet.net
  • Subject: [mg104780] Re: Problem with mouse EventHandler on linux
  • From: Harrie Kraai <hakraai at xs4all.nl>
  • Date: Tue, 10 Nov 2009 05:56:47 -0500 (EST)
  • References: <hcr9rr$9lk$1@smc.vnet.net>

Hi, is there anyone willing to try this out and confirm?
Then I can report this as a bug...

HK

Harrie Kraai wrote:
> Hi, I met the following problem with the EventHandler for mouse actions 
> on Linux (SuSE 10.?, kernel 2.6.16.46), Mathematica 7.0.1
> 
> 
> DynamicModule[{a, b, c},
>   EventHandler[
>    Dynamic@ArrayPlot[{{a, b, c}}], {{"MouseDown",
>       1} :> (a = 1), {"MouseUp", 1} :> (a = 0), {"MouseDragged",
>       1} :> (Beep[]), {"MouseDown", 2} :> (b = 1), {"MouseUp",
>       2} :> (b = 0), {"MouseDragged", 2} :> (Beep[]), {"MouseDown",
>       3} :> (c = 1), {"MouseUp", 3} :> (c = 0), {"MouseDragged",
>       3} :> (Beep[])}], Initialization :> (a = 0; b = 0; c = 0;)]
> 
> The arrayplot represents pushed buttons. The problem is that the right 
> mouse button (2) signals a MouseUp immediately after a MouseDown, even 
> if you keep it down. The middle button/wheel, supposed to be button 3, 
> signals a MouseDown+MouseUp for button 1 when pushed down.
> On Windows (XP) I noticed that that buttons 1 and 2 work correctly but 3 
> is completely ignored.
> 
> Can you reproduce this? Is this a bug?
> 
> 
> HK
> 


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