Mfc ClassWizard hangs VC6 - C / C++ / MFC Discussion Boards

Re: comunicate with USB

David Crow31-Mar-08 3:33

David Crow

31-Mar-08 3:33

That all depends on what type of "communication" you are referring to.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

The instruction at "" referenced memory at "" The memory couldn't be read [modified]

Joseph Marzbani31-Mar-08 2:51

Joseph Marzbani

31-Mar-08 2:51

Hi buddy!
When I close my dialog base app, I encounter an error that says:
"The instruction at "0x45a525" referenced memory at "0x400012". The memory couldn't be "read". Click on OK to terminate the program."
My application cosists of tens of DLLs Sigh | :sigh:

could anybody give me an idea to solve this problem PLS...

modified on Monday, March 31, 2008 9:06 AM

Re: The instruction at "" referenced memory at "" The memory couldn't be read

Cedric Moonen31-Mar-08 3:02

Cedric Moonen

31-Mar-08 3:02

Yes, use your debugger to see more in details what is happening, where the code crashes, the call stack, ...

Cédric Moonen
Software developer

Charting control [v1.3]

Re: The instruction at "" referenced memory at "" The memory couldn't be read

Hamid_RT7-Apr-08 2:47

Hamid_RT

7-Apr-08 2:47

Did you use of pointers in your project?

dialog based problem

rowdy_vc++31-Mar-08 2:15

rowdy_vc++

31-Mar-08 2:15

hi

i prepared one project in dialog based application but i need database suppot for this appl;ication how to solve it?

*****THANKS N ADVANCE****
Mathen.K
(I WILL TRY MY LEVEL BEST )

Re: dialog based problem

Joseph Marzbani31-Mar-08 2:29

Joseph Marzbani

31-Mar-08 2:29

First of all you need to go to "control panel\Administrative Tools\Data Sources (ODBC)" and prepare a DSN (Data Source Name). You should define a path to your database file (e.g MyDatabase.mdb) there.
After that you must add a class to your project, base on ODBC, and define that DSN as database source.
finally costruct an object from new class and enjoy!
Note that you can change the path of your database file in "GetDefault...()"
function within your new database class (Sorry! I couldn't remember the full name of that function Laugh | :laugh:

)

Re: dialog based problem

David Crow31-Mar-08 3:36

David Crow

31-Mar-08 3:36

You can always do this even after a project has been created by using ClassWizard (Ctrl+W) to derive a class from CRecordset. A DSN (that layer between your code and the database) is nice but it is not necessary.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mfc ClassWizard hangs VC6

Martin96631-Mar-08 1:56

Martin966

31-Mar-08 1:56

I am stuck trying to develop an application in Visual C++ 6 and MFC. Unfortunately I have ran into a problem before even getting started. When I use the ClassWizard to create a new class for a dialog (or try to use the ClassWizard generally) Visual C++ hangs. It is not possible to exit VC from the task manager or kill the msdev process, It doen't even die if I log off and log in again. The only way to kill it is to press the power button.

The workspace I have created is a dialog based Mfc AppWizard(exe) with 3d controls and ActiveX. I have the same problem with VC6 SP5 and without any sp installed. The computer I use is Windows XP SP2.

Does anybody have an idea what the problem is and what I can do about it?

//Thanks in advance
Martin

Re: Mfc ClassWizard hangs VC6

Moak31-Mar-08 2:58

Moak

31-Mar-08 2:58

Hi Martin! Probably someone has a better answer... this is just a shot into the blue.

Try to cleanup generated files, they will be recreated automatically when needed. Delete files with the following extension: .ncb .opt .plg .aps .clw - especially the last one always makes problem for me when I add files/classes without using the wizard, I delete it in regular intervals.

If VC crashs you might need to end the hanging process in the task manager, the process is called MSDEV.EXE. That's the quickest solution, if you don't end it you can often not restart VC.

Hope it helps.

/M

My Webchat

Re: Mfc ClassWizard hangs VC6

David Crow31-Mar-08 3:38

David Crow

31-Mar-08 3:38

Moak wrote:
If VC crashs you might need to end the hanging process in the task manager, the process is called MSDEV.EXE. That's the quickest solution, if you don't end it you can often not restart VC.

Based on the OP's "It is not possible to exit VC from the task manager or kill the msdev process..." comment, he appears to have already tried that. Confused | :confused:

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Mfc ClassWizard hangs VC6 - OOPS

Moak31-Mar-08 3:53

Moak

31-Mar-08 3:53

DavidCrow wrote:
Based on the OP's "It is not possible to exit VC from the task manager or kill the msdev process..." comment, he appears to have already tried that.

-- Please insert coffee here--

Sorry I completely missed that in the original posting!?! How could I have missed that. I think this summertime change makes me crazier than I thought. I promise to improve my caffeine level before posting. D'Oh! | :doh:

My Webchat

Re: Mfc ClassWizard hangs VC6

bob1697231-Mar-08 3:17

bob16972

31-Mar-08 3:17

What about VS SP6?

Re: Mfc ClassWizard hangs VC6

Martin96631-Mar-08 4:01

Martin966

31-Mar-08 4:01

Worth a try. Is there a patch to debug static variables for vc6 (preprocessor pack)? The only one I have is for sp5.

/Martin

Re: Mfc ClassWizard hangs VC6

Randor 31-Mar-08 4:04

Randor

31-Mar-08 4:04

Hei,

Register the VC6 environment variables and see if that fixes your problem.

Best Wishes,
-David Delaune

Re: Mfc ClassWizard hangs VC6

Kevin McFarlane31-Mar-08 4:04

Kevin McFarlane

31-Mar-08 4:04

Martin966 wrote:
It is not possible to exit VC from the task manager or kill the msdev process

Try using Process Explorer from sysinternals. It's more effective than Task Manager at killing tasks. Though I can't guarantee that it will kill msdev. It does, however, kill VS 2005 when task manager fails so I'm assuming that it will work for msdev too.

Kevin

Problem in adding registry entry values

neha.agarwal2731-Mar-08 1:46

neha.agarwal27

31-Mar-08 1:46

Hi all,

I am trying to a add a Regitry Entry using MFC api's.

Suppose i want to give my program file address to the registry value.....

Its not taking full address its just taking 25 characters

for example:-
C:\Program Files\Data

Can anybosy please help me in this.....

Re: Problem in adding registry entry values

Rajesh R Subramanian31-Mar-08 2:44

Rajesh R Subramanian

31-Mar-08 2:44

neha.agarwal27 wrote:
I am trying to a add a Regitry Entry using MFC api's.

Can you please show us the relevant code? Because

1. We can't answer solely on assumptions
2. And there's a pillar right next to your cubicle, so I am not able to see your monitor.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: Problem in adding registry entry values

Nitheesh George31-Mar-08 7:19

Nitheesh George

31-Mar-08 7:19

i think u r buffer size may be 25 characters or u r writing only 25 characters

Re: Problem in adding registry entry values

CPallini31-Mar-08 10:24

CPallini

31-Mar-08 10:24

neha.agarwal27 wrote:
I am trying to a add a Regitry Entry using MFC api's.

MFC has an API for the registry?
Confused | :confused:

neha.agarwal27 wrote:
Suppose i want to give my program file address to the registry value.....

Its not taking full address its just taking 25 characters

for example:-
C:\Program Files\Data

Be aware that RegSetValueEx's cbData parameter should be the size of the string expressed in bytes, i.e. (string length + 1)*2 for UNICODE strings.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: Problem in adding registry entry values

neha.agarwal2731-Mar-08 20:17

neha.agarwal27

31-Mar-08 20:17

Thanks for your reply.....

it worked fine with my code....

now my problem is my code is creating registry enteries fine in xp but its not creating it in vista but when i run my program as administrator it creates the enteries....

how can i remove my problem...

Re: Problem in adding registry entry values

CPallini31-Mar-08 21:25

CPallini

31-Mar-08 21:25

Hence run the program as administrator.
Big Grin | :-D

Seriously, I don't know. Maybe you'll have more luck on Vista[^] forum.
Smile | :)

Re: Problem in adding registry entry values

neha.agarwal2731-Mar-08 22:14

neha.agarwal27

31-Mar-08 22:14

and when i am trying to add binary entry(REG_BINARY), like if i want to add 11 01 10 11 then in registry only 00 00 00 00 is added....

can you tell me the problem

Re: Problem in adding registry entry values

CPallini31-Mar-08 22:39

CPallini

31-Mar-08 22:39

Could you please post the relevant code?

Re: Problem in adding registry entry values

neha.agarwal2731-Mar-08 23:10

neha.agarwal27

31-Mar-08 23:10

RegCreateKeyEx ( hkey, (LPCTSTR) str1, 0, NULL, REG_OPTION_NON_VOLATILE, 
KEY_CREATE_SUB_KEY | KEY_ALL_ACCESS, NULL, &childkey, &dispos ) ;

RegSetValueEx ( childkey, (LPCTSTR)str2, 0, valur_type, (const BYTE*) (LPCTSTR)str4, (str4.GetLength()+1)*2 ) ;
RegCloseKey ( childkey ) ;

Re: Problem in adding registry entry values

CPallini1-Apr-08 0:45

CPallini

1-Apr-08 0:45

I don't see any REG_BINARY in your code.

BTW To maintain generic text mappings, I suggest you to change from (str4.GetLength()+1)*2
to (str4.GetLength()+1) * sizeof(TCHAR) .
Smile | :)

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