Package org.eclipse.swt.accessibility

Interface AccessibleValueListener

All Superinterfaces:
EventListener, SWTEventListener
All Known Implementing Classes:
AccessibleValueAdapter
public interface AccessibleValueListener extends SWTEventListener
Classes which implement this interface provide methods that handle AccessibleValue events.

After creating an instance of a class that implements this interface it can be added to an accessible using the addAccessibleValueListener method and removed using the removeAccessibleValueListener method.

Since:
3.6
See Also:

  • Method Details

    • getCurrentValue

      void getCurrentValue(AccessibleValueEvent e)
      Returns the value of this object as a number.
      Parameters:
      e - an event object containing the following fields:
      • [out] value - the number that is the current value of this object

    • setCurrentValue

      void setCurrentValue(AccessibleValueEvent e)
      Sets the value of this object to the given number. The argument is clipped to the valid interval whose upper and lower bounds are returned by getMaximumValue and getMinimumValue, i.e. if it is lower than the minimum value the new value will be the minimum, and if it is greater than the maximum then the new value will be the maximum.
      Parameters:
      e - an event object containing the following fields:
      • [in/out] value - on input, the number that will be the new value of this object
        - on output, set to null if the value cannot be set

    • getMaximumValue

      void getMaximumValue(AccessibleValueEvent e)
      Returns the maximum value that can be represented by this object.
      Parameters:
      e - an event object containing the following fields:
      • [out] value - the number that is the maximum value that this object can represent. If this object has no upper bound then null is returned.

    • getMinimumValue

      void getMinimumValue(AccessibleValueEvent e)
      Returns the minimum value that can be represented by this object.
      Parameters:
      e - an event object containing the following fields:
      • [out] value - the number that is the minimum value that this object can represent. If this object has no lower bound then null is returned.