Constructs a new instance of this class given its parent
and a style value describing its behavior and appearance.
<p>
The style value is either one of the style constants defined in
class <code>SWT</code> which is applicable to instances of this
class, or must be built by <em>bitwise OR</em>'ing together
(that is, using the <code>int</code> "|" operator) two or more
of those <code>SWT</code> style constants. The class description
lists the style constants that are applicable to the class.
Style bits are also inherited from superclasses.
</p><p>
Note: Currently, null can be passed in for the parent.
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 parent is not considered to be good coding style,
and may not be supported in a future release of SWT.</b>
</p>
@param parent a shell which will be the parent of the new instance
@param style the style of control to construct
@exception IllegalArgumentException <ul>
<li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
</ul>
@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 its parent and a style value describing its behavior and appearance. <p> The style value is either one of the style constants defined in class <code>SWT</code> which is applicable to instances of this class, or must be built by <em>bitwise OR</em>'ing together (that is, using the <code>int</code> "|" operator) two or more of those <code>SWT</code> style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses. </p><p> Note: Currently, null can be passed in for the parent. 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 parent is not considered to be good coding style, and may not be supported in a future release of SWT.</b> </p>
@param parent a shell which will be the parent of the new instance @param style the style of control to construct
@exception IllegalArgumentException <ul> <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> </ul> @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>
@see SWT#BORDER @see SWT#CLOSE @see SWT#MIN @see SWT#MAX @see SWT#RESIZE @see SWT#TITLE @see SWT#NO_TRIM @see SWT#SHELL_TRIM @see SWT#DIALOG_TRIM @see SWT#ON_TOP @see SWT#TOOL @see SWT#MODELESS @see SWT#PRIMARY_MODAL @see SWT#APPLICATION_MODAL @see SWT#SYSTEM_MODAL