BenQ MX780 ST User Manual page 67

How to hold the PointDraw
You can hold the PointDraw
hold it like a remote control - use in whichever position is most comfortable.
If the PointDraw
TM
click and drag.
Avoid shadows!
The PointDraw pen won't work if its tip is in a shadow or if it is pointing at a shadow:
TM
Correct (no shadow)
12%
28%
the way you would hold a normal pencil or pen, or you can
TM
pen is far away from the screen, be sure to press the left mouse button to
28%
28%
pen
TM
or
Incorrect (shadow)
12%
28%
X
28%
28%
Operation 67