multitouch on a Bamboo Create touch-capable tablet

 From:  Michael Gibson
6128.5 In reply to 6128.4 
Another thing you can test to see if a device has actual full Win8 touch support is to go into Windows paintbrush (do Start and type pbrush should find it) and then inside the canvas area there try to do brush strokes with multiple fingers down. With full multi-touch you will get simultaneous brush strokes with one point per finger.

If you only get one single brush stroke in there and it is not responding to multiple simultaneous touches, it means the device does not generate full touch messages and is instead one of these things where the device driver is the only thing that receives the actual touch data and it only sends things like scroll wheel messages to applications rather than sending full touch data through to applications.

I'm not sure but it may be some limitation in Windows too, it seems that the new windows multi-touch stuff is very focused on touch screens and not so much on touchpad like things.


There are a couple of projects out there that try to adapt touchpads or other devices to generate Windows touch events, it's theoretically possible that one of those might work with the Bamboo, but it's pretty hacky. There are some links in this message here to that stuff:
http://moi3d.com/forum/index.php?webtag=MOI&msg=5671.3


But basically if you don't see multiple simultaneous contact points in Windows paintbrush you are not really getting true touch events from the device.


Unfortunately every touchpad like device (rather than touch screen) has seemed to fall into this category of not actually generating real touch events. Another part of that is that these manufacturers are also trying to support older versions of Windows like Windows XP which predates a lot of this stuff, so they have to do this system of doing their own driver and generating things like scroll wheel events there instead anyway.


- Michael