iOSCanvas.PointerDrag
From Xojo Documentation
Event
Called when the pointing device is dragged.
Sample Code
Saves the drag positions to draw as circles:
// mTouches is a property
// mTouches() As Point
mTouches.Append(pos)
Me.Invalidate
// mTouches() As Point
mTouches.Append(pos)
Me.Invalidate