Constructs a new instance of this class given only the display
to create it on. It is created with style <code>SWT.SHELL_TRIM</code>.
<p>
Note: Currently, null can be passed in for the display argument.
This has the effect of creating the shell on the currently active
display if there is one. If there is no current display, the
shell is created on a "default" display. <b>Passing in null as
the display argument is not considered to be good coding style,
and may not be supported in a future release of SWT.</b>
</p>
@param display the display to create the shell on
@exception SWTException <ul>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
<li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
</ul>
Constructs a new instance of this class given only the display to create it on. It is created with style <code>SWT.SHELL_TRIM</code>. <p> Note: Currently, null can be passed in for the display argument. This has the effect of creating the shell on the currently active display if there is one. If there is no current display, the shell is created on a "default" display. <b>Passing in null as the display argument is not considered to be good coding style, and may not be supported in a future release of SWT.</b> </p>
@param display the display to create the shell on
@exception SWTException <ul> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> </ul>