Q152842: PostScript Halftoning Is Different on WinNT Than Win95
Article: Q152842
Product(s): Microsoft Windows NT
Version(s): 3.5 3.51 4.0
Operating System(s):
Keyword(s): kbprint kbPrinting
Last Modified: 07-SEP-2001
-------------------------------------------------------------------------------
The information in this article applies to:
- Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
- Microsoft Windows NT Server versions 3.5, 3.51, 4.0
-------------------------------------------------------------------------------
SUMMARY
=======
The halftone option with the Windows NT PostScript driver does not have any
effect on a document containing text or vector graphics.
MORE INFORMATION
================
The Windows NT PostScript driver uses the host to perform halftoning when the
option is selected in the PostScript driver. This setting has no effect on
non-image output. If you are just printing text or vector graphics, no
halftoning will be done on the host.
In contrast, the Windows 95 driver does not actually do halftoning on the host
computer. Instead, it sends halftone settings (angle and frequency) to the
printer, and this affects all PostScript drawing operators including vector
graphics and text.
When the Halftoning option is selected in the Windows NT PostScript driver, the
driver performs halftoning on the host. This only works when the source data is
bitmap. If the source data is text or vector graphics, the driver doesn't have
any bitmap information to work with. Instead, it generates appropriate
PostScript operators and sends them to the printer. These would then get
halftoned by the printer.
======================================================================
Keywords : kbprint kbPrinting
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search
Version : 3.5 3.51 4.0
=============================================================================
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.
Copyright Microsoft Corporation 1986-2002.