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Appendix A Accessibility 147
Point scanning
Point scanning lets you select an item on the screen by pinpointing it with scanning crosshairs.
Switch to point scanning. Use item scanning to choose Point Mode from the control menu. The
vertical crosshair appears when you close the menu.
Select an item. Trigger your Select Item switch when the item you want is within the broad,
horizontal scanning band, then trigger again when the ne scanning line is on the item. Repeat
for vertical scanning.
Rene your selection point. Choose Rene Selection from the control menu.
Return to item scanning. Choose Item Mode from the control menu.
Manual selection
You can select a screen item directly using dedicated switches instead of having iPod touch
alternately highlight every item.
Stop scanning and highlight items yourself. Add switches in addition to your Select Item switch to
perform the Move To Next Item and Move To Previous Item actions. (You can use the iPod touch
FaceTime camera with head-left and head-right movements for these switches.) When you’ve
added the switches, turn o Settings > General > Accessibility > Switch Control > Auto Scanning.
Important: Don’t turn o Auto Scanning if you use only one switch. You need at least two: one to
move to an item and a second to select the item.
Settings and adjustments
Adjust basic settings. Go to Settings > General > Accessibility > Switch Control, where you can:
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Add switches and specify their function
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Turn o auto scanning (only if you’ve added a Move to Next Item switch)
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Adjust how rapidly items are scanned
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Set scanning to pause on the rst item in a group
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Choose how many times to cycle through the screen before hiding Switch Control
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Turn Auto Tap on or o and set the interval for performing a second switch action to show
the control menu
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Set whether a movement action is repeated when you hold down a switch, and how long
to wait before repeating
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Set whether and how long you need to hold a switch down before it’s accepted as a
switch action
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Have Switch Control ignore accidental repeated switch triggers
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Adjust the point scanning speed
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Turn on sound eects or have items read aloud as they are scanned
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Choose what to include in the Switch Control menu
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Set whether items should be grouped while item scanning
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Make the selection cursor larger or a dierent color
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Save custom gestures to the control menu (in Gestures > Saved)