Returns the receiver's image if it had previously been
set using <code>setImage()</code>. The image is typically
displayed by the window manager when the instance is
marked as iconified, and may also be displayed somewhere
in the trim when the instance is in normal or maximized
states.
<p>
Note: This method will return null if called before
<code>setImage()</code> is called. It does not provide
access to a window manager provided, "default" image
even if one exists.
</p>
@return the image
@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 image if it had previously been set using <code>setImage()</code>. The image is typically displayed by the window manager when the instance is marked as iconified, and may also be displayed somewhere in the trim when the instance is in normal or maximized states. <p> Note: This method will return null if called before <code>setImage()</code> is called. It does not provide access to a window manager provided, "default" image even if one exists. </p>
@return the image
@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>