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1993-11-16
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DOCUMENT:Q102865 04-NOV-1993 [W_NT]
TITLE :CorelDRAW Does Not Recognize PostScript When Running with NT
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:
---------------------------------------------------------
The information in this article applies to:
- Microsoft Windows NT operating system, version 3.1
- Microsoft Windows NT Advanced Server, version 3.1
---------------------------------------------------------
SYMPTOMS
========
CorelDRAW encounters the following problems when printing to a
PostScript printer and running with Windows NT:
- If TrueType fonts are printed over a graphic, a white rectangle may
be displayed behind the characters.
- Non-clipped shaded text does not print.
- Performance during print fills is too slow.
CAUSE
=====
These problems occur because CorelDRAW running with NT cannot
determine that it is printing to PostScript; therefore, CorelDRAW
defaults to a non-PostScript printer and tries to read the file from
the printer device context surface.
The white rectangle appears when CorelDRAW tries to block transfer
from the printer device context surface to a memory bitmap, block
transfer the character on top of the bitmap, then block transfer the
complete image back to the printer device context surface.
CorelDRAW creates non-clipped shaded text by adding the shaded
rectangle to the surface, then XORing (exclusive ORing) on top to
erase the background. CorelDRAW does this because it does not know it
is printing to a PostScript printer, which cannot complete XOR
functions.
Poor performance printing fills also stem from this problem. Fills
normally are sent to a PostScript device as the area fills, which is
extremely quickly. The NT PostScript device is sent bit-block
transfers, which are extremely slow.
NOTE: Poor printing fills are not a problem with the Win31 PostScript
printer driver.
RESOLUTION
==========
There currently are no workarounds for these problems.
CorelDRAW is manufactured by Corel Systems Corporation, a vendor
independent of Microsoft; we make no warranty, implied or otherwise,
regarding this product's performance or reliability.
Additional reference words: 3.10
KBCategory:
KBSubCategory: 16ap
=============================================================================
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 1993.