Copies the selected text to the <code>DND.CLIPBOARD</code> clipboard.
<p>
The text will be put on the clipboard in plain text format and RTF format.
The <code>DND.CLIPBOARD</code> clipboard is used for data that is
transferred by keyboard accelerator (such as Ctrl+C/Ctrl+V) or
by menu action.
</p>
@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>
Copies the selected text to the <code>DND.CLIPBOARD</code> clipboard. <p> The text will be put on the clipboard in plain text format and RTF format. The <code>DND.CLIPBOARD</code> clipboard is used for data that is transferred by keyboard accelerator (such as Ctrl+C/Ctrl+V) or by menu action. </p>
@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>