Thread: user input type detection
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yabbas is offline yabbas
2007-08-25 , 01:00
Posts: 393 | Thanked: 112 times | Joined on Jul 2007
#6
Originally Posted by brendan View Post
i believe it has to do with the pressure area. the stylus is a small confined contact/pressure zone. with your finger, the pressure/contact zone is much greater.

by determining the area of contact, you can set the logic around which menu to show.
The question is - can you poll specific areas of the touchscreen at will?

i.e. I sense touch at X1, Y1 - I can query X2, Y2 and X3, Y3 locations and henceforth determine the larger area for myself.

If you can do this then multitouch would be a non-issue. Just divvy up the screen into quadrants and hone into the locations of said contacts.

Without knowing anything - my guess is the touchscreen hardware itself does this and reports back to the OS whether a larger or small area was touched. You won't programmatically have the ability to poll multiple areas of the screen to determine area/multiple touch.