If the receiver is visible, moves it to the top of the
drawing order for the display on which it was created
(so that all other shells on that display, which are not
the receiver's children will be drawn behind it) and asks
the window manager to make the shell active
@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>
If the receiver is visible, moves it to the top of the drawing order for the display on which it was created (so that all other shells on that display, which are not the receiver's children will be drawn behind it) and asks the window manager to make the shell active
@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>
@since 2.0 @see Control#moveAbove @see Control#setFocus @see Control#setVisible @see Display#getActiveShell @see Decorations#setDefaultButton(Button) @see Shell#open @see Shell#setActive