true if the viewer is being printed; false otherwise.
Return Value
A value representing the fitted width of the viewer in pixels. If -1, then no fitted width is required or
desired.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2