>How can I make a line on a form appear to swing in an arc from 100 degrees to 170 using the arrow keys?

Use the line() method of the form to draw a line and overwrite the previous line before drawing the next one. The method take four params: xOrigin, yOrigin, xDestination, yDestination

But you need to do some calculations in order to draw with differents angles on an arc.

With the following code the angle 0 deg was horizontal.
(0 deg was at 3 on a watch, 90 deg was at 6, 180 at 9, 270 at 12 and 360 at 3)

*To draw a line at 4 (30 deg) on a 200 pixels watch : 

CenterX=100
CenterY=100
Radius=100
nDeg=30

MyForm.LINE(CenterX,;
	CenterY,;
	CenterX+(Radius*COS(DTOR(nDeg))),;
	CenterY+(Radius*SIN(DTOR(nDeg))))

Play with the forecolor of the form to change the color of the line...