Problem with wacom tablet

[Karl DD]

Thanks for that (again!).

It is pretty clear that your current setup is returning an incorrect location each time you PRESS the pen down.
I would guess that this is a Java bug, but one specific to your tablet/tablet driver. Which means it is not so simple to submit a bug report and get it fixed - a long and unforgiving process

But it looks like the location data is fine when the pen is DRAGGED or RELEASED, so it is possible to just ignore the PRESSED data altogether.
However that means doing it for everyone - including people who don't encounter this bug.

Perhaps the other option is to actually implement tablet support and bypass the buggy Java stuff... that we plan to do at some stage anyway.
I will post back here another (hopefully bugless) Shapes module for you to try soon.

[andrea.bianco]

Thanks so much for your support Karl, I hope we can find a way to fix it

Have a nice time,
A

[Karl DD]

Here you go!
http://al.chemy.org/files/Alchemy-005-Post.zip

Try this, I have stopped using mouse/pen PRESSED data across the board so it should work fine now... I hope...
At any rate it doesn't make a difference to the shapes made, so no dramas.

[andrea.bianco]

Thanks Karl! But I tested it and it's the same actually

[andrea.bianco]

Karl I fixed it. I was guessing it had something to do with Vista TabletPC components, so in past I turned all of them off, without fixing the problem anyway. Today I went to that control panel section again and I looked for more options that could be turned off, and I found the one that was causing the problem..

On Vista :

01 - Control panel, chose classical view
02 - Pen and input devices
03 - Click on "press and hold" and then on Settings button
04 - turn off the option

now the lag will disappear, cos Vista will stop using TabletPc service for trying to detect press&hold events. I've no idea on how come this was a problem with java and not with the other softwares; I guess it is either some buggy Java code or Vista not caring about correctly comunicating with Java. Anyway, I'm deeply happy it fixed everything, now I can go back to creating with Alchemy.

I'm sorry I made you lose so much time on that man

[Karl DD]

Awesome!
Yeah, I was starting to think I was going crazy a bit there... debuging the shadows...
Glad it is sorted!

[Leo Ki]

Hello,

I'm new to Alchemy. I had the same stroke delay problem in Skype sketchpad and also in an experimental program I'm developing, and I was wondering if I was using the wintab dll the wrong way, because other programs that seem wintab-based work well.

Thanks a bunch Andrea for finding out the cause of the problem! Now that it works fine on my computer I can play with Alchemy

And thanks to Karl for the debugging effort - I know how painful those things are.

[andrea.bianco]

You are welcome Leo Ki! I wish you a great time with al.chemy and good luck for your software

[Leo Ki]

I think I'll just end up making modules for Alchemy