Returns the receiver's date, or day of the month.
<p>
The first day of the month is 1, and the last day depends on the month and year.
</p>
@return a positive integer beginning with 1
@exception SWTException <ul>
<li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
</ul>
Returns the receiver's date, or day of the month. <p> The first day of the month is 1, and the last day depends on the month and year. </p>
@return a positive integer beginning with 1
@exception SWTException <ul> <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> </ul>