Sent when an accessibility client requests the value
of the control, or the value of a child of the control.
<p>
Many controls do not return a value. Examples of controls
that do are: Combo returns the text string, Text returns
its contents, ProgressBar returns a string representing a
percentage, and Tree items return a string representing
their level in the tree.
</p><p>
Return a string describing the value of the specified control
or child in the <code>result</code> field of the event object.
Returning null tells the client to use the platform value string.
</p>
@param e an event object containing the following fields:<ul>
<li>childID IN - an identifier specifying the control or one of its children</li>
<li>result OUT - the requested value string, or null</li>
</ul>
Sent when an accessibility client requests the value of the control, or the value of a child of the control. <p> Many controls do not return a value. Examples of controls that do are: Combo returns the text string, Text returns its contents, ProgressBar returns a string representing a percentage, and Tree items return a string representing their level in the tree. </p><p> Return a string describing the value of the specified control or child in the <code>result</code> field of the event object. Returning null tells the client to use the platform value string. </p>
@param e an event object containing the following fields:<ul> <li>childID IN - an identifier specifying the control or one of its children</li> <li>result OUT - the requested value string, or null</li> </ul>