Hi!
> i don't really understand why the moving of the "ViewPort" canvas changes the patch's
> view on the android device like it does. is "ViewPort" some special
> variable or object ?
yes "ViewPort" is a special canvas-gui name (hard coded in the java), that can be used to scroll through the main pd window:
- in the main pd window, create a canvas gui (add canvas)
- edit the canvas properties and set the receive name to "ViewPort"
- make sure the canvas is in the background (select all the objects but the canvas, cut, copy)
- then send "pos" and "vis_size" messages to "ViewPort", so you have visual indication of the portion of the screen that will be displayed on PdDroidParty.