Keyboard Support

A user can select a value by using the navigation keys to move the slider arm to the value or by typing a value in an entry field, if one is provided by the application, to change the slider arm position. The following list describes these methods of selecting slider values:

• Values can be selected using the Up, Down, Left, and Right Arrow keys to move the slider arm one increment at a time. The Up and Down Arrow keys are enabled for vertical sliders, and the Right and Left Arrow keys are enabled for horizontal sliders. If no tick mark exists on the scale in the requested direction, the slider arm does not move.

  If an Arrow key is pressed in conjunction with the Shift key, the slider arm moves to the next detent instead of the next tick mark. If no detent exists on the scale in the requested direction, the slider arm does not move.

• The Home and End keys can be used to select the lowest and highest values, respectively, in the scale. If the Ctrl key is pressed in combination with the Home or End keys, the result is the same as pressing only the Home or End keys.

• The application can provide an optional entry field for the slider control. The entry field is a separate control, but it can work in conjunction with the slider control.

  If the application provides an entry field for the slider control window, it must be implemented as follows:

  • The user must be allowed to type a value into the entry field.

  • If the typed value is within the range of the slider scale, the slider arm moves to that value as soon as the value is typed.

  • No other action, such as pressing the Enter key, is required.

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