Windows Vista introduced a Command Link Button

Windows™ Vista introduced a Command Link Button: a push button with a nicer design, showing the comment directly. When the mouse goes over the button, a nice gradient effect occurs.

If you want a Command Link Button in GDC, you may use "commandLink" as the value for the "buttonType" style attribute:

<Style name="Button.commandLink">
  <StyleAttribute name="buttonType" value="commandLink"/>
</Style>

You can now add a Vista (or Windows 7) Command Link Button style in your application, and use the mouseover effect.

This will work on Vista / Windows 7 only. On other systems it displays a simple button with the text and the comment, but without the nice mouseover effect.