Access Database woes... - C / C++ / MFC Discussion Boards

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Re: Change Cursor

Michael Dunn30-Oct-01 22:32

Michael Dunn

30-Oct-01 22:32

See the VC forum FAQ (there's a link to it at the top of this page, too).

--Mike--
http://home.inreach.com/mdunn/
This posting is provided "as was" with no warranties, guarantees, lotteries, or any of those little bags of peanuts you get on planes. You assume all risk for crossing the street without holding mommy's hand. © 2001 Mike's Classy Software. Member FDIC. If rash develops, discontinue use.
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Re: Change Cursor

Maer72731-Oct-01 1:03

Maer727

31-Oct-01 1:03

- Thanks, Mike pal!

- Your reply clarifies my doubts.

- Regards,
Maer

What do the MIME email looks like?

cococut30-Oct-01 20:19

cococut

30-Oct-01 20:19

the UUEncode email looks like

x-sender: seaboat@cmsland.com
x-receiver: cococut@cmsland.com
Received: from mail pickup service by webserver.landserver with Microsoft SMTPSVC;
Tue, 7 Aug 2001 09:16:15 +0800
From: "seaboat" <seaboat@cmsland.com>
To: <cococut@cmsland.com>
Cc:
Subject: good luck!
Date: Tue, 7 Aug 2001 09:16:13 +0800
X-Priority: 3
X-MSMail-Priority: Normal
Importance: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700
Message-ID: <webserver9xdcxobbcs00000001@webserver.landserver>
X-OriginalArrivalTime: 07 Aug 2001 01:16:15.0117 (UTC) FILETIME=[8DA6B3D0:01C11EDE]

hello ,baby!

begin 666 make.txt
zqrKssO0u+HKx9Xi0fnX07XEu7CjrMTRtcC+zcrH1eK49tH519O1xMLro7+/ycrHztK+zcrHsrvD97DXo6E=
end

but What the MIME *.eml looks like?
can you post me a MIME eml?
my email: cococut@mail.com
thans in advance!

Re: What do the MIME email looks like?

markkuk30-Oct-01 20:35

markkuk

30-Oct-01 20:35

A MIME email always has a header field that contains:

MIME-Version: 1.0

There are several other possible headers, and the structure of the message body depends on the headers. See RFC 2045 for the specification of MIME message structure.

Breakpoints in DLL

Nevidimka30-Oct-01 18:35

Nevidimka

30-Oct-01 18:35

I'm coding MFC application that supports external dll's. These additional dll's are depended from my main project. The problem arised when I'm trying to set breakpoint and run the debugging. VC determines invalid breakpoints in dll and runs from the beginning.
So, does anyone know how can I debug external dll's?

Re: Breakpoints in DLL

Bernhard30-Oct-01 22:15

Bernhard

30-Oct-01 22:15

You have to set the dll as the active Project.. (if you have got more projects in your workspace..) (or open the Workspace of the dll)
if you debug the dll you can tell the compiler which exe should be run to test the dll -> Settings / Debug / Executable for Debug Session... the enviroment starts the exe and you can debug your dll.

hope this helps

Bernhard

""Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason."

Re: Breakpoints in DLL

Bernhard30-Oct-01 22:18

Bernhard

30-Oct-01 22:18

* You have to set the DLL - Project as the active Projekt (or open the Workspace of the DLL - Project)
* Then you just start debugging (F5) (the first time you do this, the compiler will ask you which executable should be started for debugging this dll, later you can change this in the project settings / debug / executable for debug session )

hope this helps
bernhard

""Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason."

Access Database woes...

Tryhard30-Oct-01 18:22

Tryhard

30-Oct-01 18:22

Hi all,

I am trying to update a record in an Access Database(I am new to DB programming and VC++), from everything I have read the following code should acheive the desired result but it gives a DB exception.

Have I missed a readonly flag or got something wrong in my database.open command???

Any pointers greatly appreciated,
Thanks in advance,
Tryhard

Code:-

CDatabase database;
CString sSql;
CString sDriver = "MICROSOFT ACCESS DRIVER (*.mdb)";
CString sDsn;
CString sFile = "d:\\Docs\\Wayne\\C\\Converse\\CDAT.mdb";

TRY
{
// Build the creation string for access without DSN

sSql.Format("ODBC;DRIVER={%s};DSN='';DBQ=%s",sDriver,sFile);

// Open the database
database.Open(NULL,false,false,sDsn);

// Allocate the recordset
CRecordset recset( &database );

// Update data
sSql = "UPDATE Convhist "
"SET GREETINGCOUNT = '1'"
"WHERE YOURFIRSTNAME = 'WAYNE'";

// Execute SQL Statement
database.ExecuteSQL(sSql);

// Close the database

database.Close();

}
CATCH(CDBException, e)
{
// If a database exception occured, show error msg
AfxMessageBox("Database error: "+e->m_strError);
}
END_CATCH;
} Confused | :confused:

Tryhard

Re: Access Database woes...

solex30-Oct-01 23:32

solex

30-Oct-01 23:32

Are you sure that your database could be opened? You are not checking the return value.
The rest of the code is fine, but there is no need for a CRecordset.
What does the error string say?

A vast majority of our imports comes from outside the country.
George W. Bush

VC++ Standard and Unicode

Matt Newman30-Oct-01 16:40

Matt Newman

30-Oct-01 16:40

I have VC++ Standard Edition and I am going to install it on Win XP how do I install it so that it supports creating unicode projects? Thanks.

-Matt Newman
-Matt Newman

Re: VC++ Standard and Unicode

Michael Dunn30-Oct-01 17:07

Michael Dunn

30-Oct-01 17:07

Your choices are 1) Do a full install of MFC (the shared and static libraries for Unicode, as they're called) so the files are copied to your HD; or 2) do a default install and keep the VC CD in your drive. Setup will set the VC lib path to point at the LIB files on the CD.
In the end, though, you don't save space with #2, because when you apply a service pack, the LIBs can only go one place - your HD.

--Mike--
http://home.inreach.com/mdunn/
This posting is provided "as was" with no warranties, guarantees, lotteries, or any of those little bags of peanuts you get on planes. You assume all risk for crossing the street without holding mommy's hand. © 2001 Mike's Classy Software. Member FDIC. If rash develops, discontinue use.
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Re: VC++ Standard and Unicode

Matt Newman31-Oct-01 11:23

Matt Newman

31-Oct-01 11:23

How do I add unicode to a project (new or old) under new MFC AppWizard the only platform option is Win32. I am running XP on NTFS. I know I installed all the Unicode Libs.

-Matt Newman
-Matt Newman

Re: VC++ Standard and Unicode

Michael Dunn31-Oct-01 17:06

Michael Dunn

31-Oct-01 17:06

Open your workspace and go Build->Configurations. Click Add and copy the settings from your Debug build, and call the new one Debug Unicode or something like that. Repeat for the Release Unicode config.
Once that's done, you'll have two new targets. Go to your project settings and for those two new targets, on the C++/General tab, change _MBCS to _UNICODE.

--Mike--
http://home.inreach.com/mdunn/
If there's something strange / in your VC code / Who you gonna call? / Ghostbusters!
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Re: VC++ Standard and Unicode

Matt Newman1-Nov-01 13:30

Matt Newman

1-Nov-01 13:30

Thanks. It is a lot easier than it seems.

-Matt Newman
-Matt Newman

How to get the bits from a DIB?

clintsinger30-Oct-01 14:22

clintsinger

30-Oct-01 14:22

I have a DIB where I need to access the pixel values so I can read and write to them. I have tried using CreateDIBSection but that doesn't seem to give me a pointer to the original image but rather an entirely new image. Is there some way to get create a pointer to the pixel data of the original DIB?

Please Help,
Clint

Re: How to get the bits from a DIB?

Christian Graus30-Oct-01 14:37

Christian Graus

30-Oct-01 14:37

Is it a DIB or a DIBSection ? If the latter, just use GetObject.

DIBSECTION dib;
GetObject(hBitmap, sizeof(DIBSECTION), dib);

Christian

After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001

Re: How to get the bits from a DIB?

clintsinger31-Oct-01 6:03

clintsinger

31-Oct-01 6:03

What I have is a DIB that I get back from a third party DLL. It takes a raw buffer, decompresses it and sends back a 24-bit dib. I want to be able to now go in and access the original bits so I can modify them ( sharpen/ motion detection) as quickly as possible. Then draw them on the screen quickly afterwards.

Please Help,
Clint Smile | :)

Re: How to get the bits from a DIB?

C^hris L^osinger31-Oct-01 6:22

C^hris L^osinger

31-Oct-01 6:22

see the MSDN for BITMAPINFOHEADER . you have to understand how DIBs are setup, in order for you to be able to get at the pixels.

here it is in a nutshell:

a 24 bit DIB (one of the simplest of the DIBs) is usually a chunk of memory that starts with a BITMAPINFOHEADER structure. immediately after that struct are the pixel bytes.

pixel rows are generally stored in a bottom-up order, so the first pixel byte is the bottom-left pixel. (top-down DIBs have a negative height).

pixel rows are always a multiple of four bytes wide; they have padding bytes at the end, if necessary, to make the total number of row bytes equal to a multiple of four.

pixels are stored BGRBGRBGR... (Blue, Green, Red). three pixels per byte, no padding between pixels (except at row ends, when necessary).

-c

http://www.smalleranimals.com

Better than the Startup folder

Jason Hooper30-Oct-01 14:12

Jason Hooper

30-Oct-01 14:12

I know some programs automatically start when the Windows OS is launched, but they are not in the Startup menu. The best I've been able to figure out so far is that it is a registry addition you must make to load your program. Where should I be looking for more information about this?

Thanks,

Suspicious | :suss:

-Jason

Re: Better than the Startup folder

Christian Graus30-Oct-01 15:03

Christian Graus

30-Oct-01 15:03

There's two - Run and RunOnce ( which runs the program then deletes the entry ). I dunno where they are, I always find them by searching for 'RunOnce'.

Christian

After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001

Re: Better than the Startup folder

Michael Martin30-Oct-01 15:42

Michael Martin

30-Oct-01 15:42

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

Michael Martin
Pegasystems Pty Ltd
Australia
martm@pegasystems.com
+61 413-004-018

"Don't belong. Never join. Think for yourself. Peace"
- Victor Stone

Re: Better than the Startup folder

Nish Nishant30-Oct-01 16:18

Nish Nishant

30-Oct-01 16:18

Put it in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run if you want it for all users

Nish

Re: Better than the Startup folder

Jason Hooper30-Oct-01 23:32

Jason Hooper

30-Oct-01 23:32

Hello. Thanks for responding so quickly. I've got a followup question:

    // add the key
<br>
    CRegKey key;
<br>
    key.Open(HKEY_LOCAL_MACHINE, "\\Software\\Microsoft\\Windows\\CurrentVersion\\Run");
    key.SetKeyValue("Igloo", "foo");
    key.Close();

This tends to ASSERT. Do you immediately spot anything wrong with the method I'm using to add a Name "Igloo" and a value "foo" (which will be the program's filespec.)

Suspicious | :suss:

-Jason

Re: Better than the Startup folder

solex30-Oct-01 23:37

solex

30-Oct-01 23:37

I'd say the \\Software\\... should be just Software\\.....

A vast majority of our imports comes from outside the country.
George W. Bush

Re: Better than the Startup folder

Rick Crone31-Oct-01 9:21

Rick Crone

31-Oct-01 9:21

In Win2000 in the control panel there is Scheduled Tasks. You can set this up there. It may just make the registery entry for you... but it is easy.

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