XWidgetSoft Forum

midX = rotator.Left + rotator.Width / 2;
midY = rotator.Top + rotator.Height / 2;

//Remember to multiply the the scale factor (in my case the arrow is scaled to 30% so the value will be  30 / 100 = .3 )
//And so midX = midX * .3; and midY = midY * .3;

angle = Math.atan2(mouseY - (Top + midY), mouseX - (Left + midX))
//Adding 180 to the angle resulting an extra 180 rotation, since my image it flipped in the horizontal direction
angle = angle* 180 / 3.1413 + 180
rotator.RotateAngle = angle;