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Mouse Tilt Wheel Test

This mouse tilt wheel test counts all four scroll directions. Push the wheel left and right inside the box, then roll it up and down. Each direction has its own counter and the matching pad lights up, so a dead tilt switch shows immediately.

Four-direction scroll area

Tilt, roll or two-finger swipe inside the box

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Last delta --

Tilt the wheel left and right, then roll it up and down.

Direction counters

← Left0
Right →0
↑ Up0
↓ Down0
Live mouse

Test every scroll direction

  1. 1. Tilt left five times

    Press the wheel sideways. The left pad should light and count to five.

  2. 2. Tilt right five times

    Same check. If only one side counts, the tilt switch is failing.

  3. 3. Roll up and down

    Confirms the normal encoder still works alongside the tilt.

What this test covers

Tilt wheels

The sideways click on many Logitech and Microsoft mice.

Thumb wheels

Dedicated horizontal wheels on productivity mice send the same events.

Trackpad sideways swipe

Two-finger horizontal swipes are counted too.

Raw deltas

See the X and Y delta of each event to spot diagonal bleed.

Horizontal scroll terms

Tilt wheel
A scroll wheel that also rocks left and right to scroll horizontally.
deltaX
The horizontal scroll amount in a wheel event.
Thumb wheel
A second wheel under the thumb for horizontal scrolling.
Shift-scroll
Holding Shift while rolling the wheel to scroll sideways on mice without tilt.

Tilt wheel questions

Tilt works in Excel but not here. Why?

Some drivers map tilt to keyboard shortcuts instead of scroll events. Switch the mapping to horizontal scroll in the mouse software.

Shift-scroll counts as vertical. Is that a bug?

The browser converts Shift-scroll into horizontal only on some platforms. It is informational.

Does the Magic Mouse work?

Yes. Sideways finger swipes arrive as horizontal wheel events.

Fix horizontal scrolling

One tilt direction dead

Worn tilt switch; usually not serviceable. Remap a side button as a fallback.

Tilt sends vertical events

Driver mapping. Reset the mouse profile to defaults.

Nothing at all

Keep the cursor inside the box; only events over the test area are counted.