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wpftouchinkcanvas

WPF - InkCanvas touchscreen problem

I'm developing a touchscreen application, touchscreen overlay comes with its own SDK which disables all of the WPF default features. For example if I don't use this SDK i can easily draw on InkCanvas, program sees the overlay as a mouse input, but when I use this SDK it just doesn't recognize gestures, there are great features in SDK so I really want to use that, I can get the position of the touch point so how can I configure the InkCanvas to recognize this point and make me able draw based on this point.

BTW, I can draw with mouse when I use the SDK.

Any idea?

Thanks in advance,

Solution

  • The best way is to not use the SDK if you can help it, and just use a multitouch driver. This simplifies things greatly. Once you have this driver you need to:

    1. enable pen and touch in windows
    2. respond to the TouchDown, TouchMove, and TouchUp events. the touches don't get translated into events the same way mouse clicks / drags do. Look at the "Raw Touch" section of this article.

    if you dont have a driver, or you insist on using their SDK, you should still look into the Touch events I listed above, as these are most likely what you need.