Marks the receiver's minimize button as visible if the argument is <code>true</code>,
and marks it invisible otherwise.
@param visible the new visibility state
@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>
Marks the receiver's minimize button as visible if the argument is <code>true</code>, and marks it invisible otherwise.
@param visible the new visibility state
@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 3.0