MethodThere are seven access methods defined in
for selecting a key on a keyboard, as follows:5 Switch DirectedThis method enables you to use four switches to move the mouse pointer around the
keyboard in four directions; up, down, left, and right. You use a fifth switch to
activate the selected key. Automatic ScanningThis method enables you to press a switch to start selecting the rows and keys
on the keyboard in sequence. When the application reaches the
key that you require, you press another switch to activate the key.Direct SelectionThis method enables you to use a direct mouse click. You use the
mouse pointer to select a key and then press a switch to activate the key.Dwell SelectionThis method enables you to use a mouse or other pointing device to position
the mouse pointer over a key for a specified period of time to select and activate the key.Inverse ScanningThis method enables you to press and hold a switch to start selecting the rows and keys of
the keyboard. When you release the switch, the application stops the
selection operation on the current key and you press another switch to activate the selected key.Single Key Automatic ScanningThis method enables you to press a switch to start the application to automatically
select each key on the keyboard in sequence. When the application reaches the
key that you require, you press another switch to activate the key.Single Key Inverse ScanningThis method enables you to press and hold a switch to select each key on the keyboard.
When you release the switch, the application stops the selection operation on
the current key and you press another switch to activate the selected key.Depending on the access method that you select, the Operation,
Feedback, and Options preferences differ, as described
in the following sections.
