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发信人: tang (独孤九剑〖玄铁重剑〗), 信区: Program
标 题: [转载] MSVC Digest - 19 Dec 1998 to 20 Dec 1998 (#1998-347)
发信站: BBS 荔园晨风站 (Mon Dec 21 17:39:22 1998), 站内信件
【 以下文字转载自 tang 的信箱 】
【 原文由 Automatic 所发表 】
There are 4 messages totalling 190 lines in this issue.
Topics of the day:
1. Printing problem
2. VC++, ODBC, ACCESS, IMAGES, and ISAPI
3. Posts to this list (2)
--------------------------------------------------------------------------
The MSVC list is hosted on a Windows NT(TM) machine running L-Soft
international's LISTSERV(R) software. For subscription/signoff info
and archives, see http://peach.ease.lsoft.com/archives/msvc.html .
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Date: Sun, 20 Dec 1998 03:56:52 -0500
From: Srikanth C G <srikanth_cg@TRIGENT.COM>
Subject: Re: Printing problem
I think the problem is that OpenPrinter takes the Printer Name as argument
and you are trying to pass Port Name as parameter. Check this out.
> BOOL result = OpenPrinter("LPT1",&pHandle,NULL);
^^^^^^
This must be printer name (like "HP Laser Jet 5/5M Postscript") and not
port name.
And also for your information, if somewhere else you are using the port
name , it should be "LPT1:" - the colon is also necessary.
Srikanth C.G.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~
_____________________________________
| C. G. Srikanth |
| Software Engineer | _
/ )| Trigent Software Limited, |( \
/ / | 620, 80 Feet Road, 8th Block,| \ \
_( (_ | Koramangala, | _) )_
(((\ \>|_/->____Bangalore - 560 095______<-\_|</ /)))
(\\\\ \_/ / \ \_/ ////)
\ / Email:srikanth_cg@trigent.com \ /
\ _/ Phone:91-80-571-0711 extn 1820 \_ /
/ / \ \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~
------------------------------
Date: Sun, 20 Dec 1998 15:33:00 +0000
From: Melvin Legge <mlegge@FIRSTCITY.NET>
Subject: VC++, ODBC, ACCESS, IMAGES, and ISAPI
Hi
I am hoping that there is someone experienced with ISAPI programming
on this list.
My problem is that I have an ACCESS database which I am hooking up to
a web page with ISAPI, IIS4.0. I have no problem querying the
numeric and text fields and sending them to the web. Images are
giving me a real headache.
I have some jpeg images stored in the ACCESS database as OLE
Packages. I have a function in my ISAPI extension DLL(called from
the web browser as <IMG SRC="vessel.dll?sendPicture"> )which reads
the picture field from the database as a CLongBinary object. This
function then sends a header to the web client setting the header
content-type to image/jpeg bla,bla,bla.
I then try to write the data to the web client as follows:
WriteClient(GlobalLock(dataSet.m_Picture.m_hData), .......);
GlobalUnlock(...);
What happens then is that the data is transmitted to the web browser
but the browser doesn't seem to understand the data format.
I have experimenting with trying to read the picture data from the
database(as a CLongBinary) and write it to a file using CFile as
follows:
Write(dataSet.m_picture.m_hData, ...).
Again, if I try to open the created file using a jpeg viewer, it
doesn't recognize the format. It seems like I am not only writing
the jpeg info but also some of the OLE wrapper stuff as well. Am I
correct? If so, any idea how to extract just the jpeg data and write
it to a file or send it to the web browser?
Thanks
Mel
VC++ 5.0, MFC 4.0, WinNT 4.0, IIS 4.0, Access97 ODBC database and
driver
------------------------------
Date: Mon, 21 Dec 1998 09:48:51 +0800
From: Lei Yin <leiyin@263.NET>
Subject: Re: Posts to this list
On Fri, 18 Dec 1998, David Roe wrote:
> I never see any of my posts to this list, regardless of whether they are
> replies to other posts. Could anyone please confirm (by mail to
> mailto:dud@sydney.net) that they are getting through. Thanks.
>
Seems this is not your personal problem. I couldn't get my posts too.
Maybe in this mailing list, the configure is setted as delivering messages
to all members except poster himself.
---
Lei Yin __________________________________________
) M r. L e i Y i n =================== )_
,-~~-.___. / State Key Laboratory of Millimeter Wave / /
/ | ' \ () / Radio Eng. Dept. , Southeast University / /
( ) 0 O /........................................./ /
\_/-, ,----' o / E-mail: Lei Yin <leiyin@263.net> / /
==== // / Tel: +86-25-3793276 (Office) / /
/ \-'~; /~~~(O) / +86-550-3025280 (Home) / /
=( _____| (_________ | (_________________________________________(_/
------------------------------
Date: Sun, 20 Dec 1998 23:35:15 -0500
From: Richard Pickett <Richard.Pickett.rpickett@NORTELNETWORKS.COM>
Subject: Re: Posts to this list
This is really odd, I seem to get all the messages I post to this list.
But for those of you that are having a problem, try this. Send "SET MSVC
REPRO" in the body of an email (without the quotes) to
LISTSERV@PEACH.EASE.LSOFT.COM <mailto:LISTSERV@PEACH.EASE.LSOFT.COM> . This
should tell the list server to send you a copy of your own posts.
Richard W. Pickett Jr.
Windows NT Server System Engineer
Client / Server, Multithreading, Sockets, IPC
Visual C++, MFC, CASE tools, UML
Are you reading this?
#include "std Disclosure Statement.h"
Home: nemesis@wku.campus.mci.net <mailto:nemesis@wku.campus.mci.net>
Work: rpickett@NortelNetworks.com <mailto:rpickett@NortelNetworks.com>
-----Original Message-----
From: Lei Yin [SMTP:leiyin@263.NET]
Sent: Sunday, December 20, 1998 7:49 PM
To: MSVC@PEACH.EASE.LSOFT.COM
Subject: Re: Posts to this list
On Fri, 18 Dec 1998, David Roe wrote:
> I never see any of my posts to this list, regardless of whether
they are
> replies to other posts. Could anyone please confirm (by mail to
> mailto:dud@sydney.net) that they are getting through. Thanks.
>
Seems this is not your personal problem. I couldn't get my posts
too.
Maybe in this mailing list, the configure is setted as delivering
messages
to all members except poster himself.
---
Lei Yin
__________________________________________
) M r. L e i Y i n
=================== )_
,-~~-.___. / State Key Laboratory of Millimeter
Wave / /
/ | ' \ () / Radio Eng. Dept. , Southeast
University / /
( ) 0 O
/........................................./ /
\_/-, ,----' o / E-mail: Lei Yin <leiyin@263.net>
/ /
==== // / Tel: +86-25-3793276 (Office)
/ /
/ \-'~; /~~~(O) / +86-550-3025280 (Home)
/ /
=( _____| (_________ |
(_________________________________________(_/
--------------------------------------------------------------------------
The MSVC list is hosted on a Windows NT(TM) machine running L-Soft
international's LISTSERV(R) software. For subscription/signoff info
and archives, see http://peach.ease.lsoft.com/archives/msvc.html .
------------------------------
End of MSVC Digest - 19 Dec 1998 to 20 Dec 1998 (#1998-347)
***********************************************************
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