Sharp AQUOS 4T-80CJ1U Operation Manual page 87

>> Using touch function (4T-B70CT1U only)
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Touch actions
Finger actions
Zoom
Use in a screen that is capable of enlargement/reduction. Touch the
screen with two fingers and move your fingers closer together to
reduce the view, or apart to enlarge the view.
Press-and-tap
Same action as right-clicking a mouse. With one finger touching the
screen, tap once (single tap) with another finger.
Rotate
Use this action in a screen that is capable of image rotation. Touch the center
point of the rotation with one finger. While holding that finger still, move another
finger in the desired direction of rotation.
TIPS
The screen may not respond correctly in the following cases:
- Touch gesture is too quick.
- The distance between the two points is too short.
- The two points intersect.
ENG 9-4