Re: Avoiding windows "error message window" on my GUI Application - C / C++ / MFC Discussion Boards

Re: Avoiding windows "error message window" on my GUI Application

Bob Stanneveld15-Jul-05 0:34

15-Jul-05 0:34

And if he has an MFC app?

Could you write your own message pump and put a try/catch(...) around that? There is already exeption handling code around the calls of message handlers in DispatchMessage.

Behind every great black man...
... is the police. - Conspiracy brother

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Re: Avoiding windows "error message window" on my GUI Application

jlvazquez19-Jul-05 1:39

jlvazquez

19-Jul-05 1:39

Thanks!!

This really worked.

I searched all threads and add a try/catch(...) arround every one of them.

Now the app crashes silently and a simple BAT file respawns it again quickly.

I am still testing to see if it covers all cases, but it seems very promising.

Thanks again for your help. I didn't know in C++ it lauched exceptions even for critical stuff such as "segfaults" before releasing the real signal.

Jose

Re: Avoiding windows "error message window" on my GUI Application

Maximilien14-Jul-05 7:03

Maximilien

14-Jul-05 7:03

I would absolutly delay the release.

Even if a really bad work around exists, having an application that crashes so often will only make you ( and your team ) look bad.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Avoiding windows "error message window" on my GUI Application

jlvazquez14-Jul-05 7:15

jlvazquez

14-Jul-05 7:15

If I could delay the release I would rather rewrite it all from scratch.

Is it really so difficult to avoid Windows XP displaying a annoying error window.

Then windows xp is no suitable for non interactive application display-only apps.
I could not believe that.

Re: Avoiding windows "error message window" on my GUI Application

David Crow14-Jul-05 7:19

David Crow

14-Jul-05 7:19

jlvazquez wrote:
Is it really so difficult to avoid Windows XP displaying a annoying error window.

Yes, fix the error and the window will no longer appear.

jlvazquez wrote:
Then windows xp is no suitable for non interactive application display-only apps.

Sure it is, but it's reasonable to assume that applications will not leave the developer's desk with known issues that would cause the OS to complain with such a message.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Avoiding windows "error message window" on my GUI Application

jlvazquez18-Jul-05 0:28

jlvazquez

18-Jul-05 0:28

You are right that known issues should not be released, but will you bet your job that your code has no bugs (no unknown issues) before a release?

I wouldn't, that's why I need a behaviour that allows me to automatically restart the app (non interactivelly), and probably leaving a core dump or log that allows me to locate the issue and fix it. All this without service disrruption (=the costumer getting too angry).

We are talking about Hign Availabitity here; bugs happen, our app needs to avoid service disrruptions caused by them and be back online ASAP.

I am still trying to get this working, now I am trying the try/catch approach in all threads.

Thanks very much for your help,

Jose

Re: Avoiding windows "error message window" on my GUI Application

basementman14-Jul-05 7:33

basementman

14-Jul-05 7:33

See the WIN32 API SetErrorMode() in the docs. Place this call in your InitInstance() MFC function, or WinMain() function.

onwards and upwards...

Re: Avoiding windows "error message window" on my GUI Application

jlvazquez17-Jul-05 23:14

jlvazquez

17-Jul-05 23:14

I tried this one, it was very promising, but in the end the cure was wor se than the illness.

Now the app freezes and it is not possible to restart it again, as it does not respond.

I just want the default unix app behaviour, "Segmentation faul, (core dumped)"
the app dies and a simple script will relaunchit again before the user can notice it.

Thanks for your help anyway!

Jose

Re: Avoiding windows "error message window" on my GUI Application

Toby Opferman14-Jul-05 18:13

Toby Opferman

14-Jul-05 18:13

Replace the Just In Time debugger on the customer's machine with a dummy one! That way, it will never come up. Or, run the application in a debugger with Image File Execution Options, execpt another one of your applications is the debugger. All u need to detect is if it crashes. if it crashes, just exit and it will restart automatically.

8bc7c0ec02c0e404c0cc0680f7018827ebee

Creating a file with permissions for Everyone

cycoder14-Jul-05 6:12

cycoder

14-Jul-05 6:12

How do you create a file with write permissions for Everyone?

Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 5:14

bsummers

14-Jul-05 5:14

Hi all,
I'm just imported a new dialog resource (and associated code) into an existing project. When I call the DoModal() function to display the dialog, it generates an entry on the windows taskbar. Why? and how can I stop this? Thanks in advance.

Brian Summers
System Programmer

Re: Why is my DoModal call creating a box on my taskbar?

Jose Lamas Rios14-Jul-05 5:32

Jose Lamas Rios

14-Jul-05 5:32

Are you passing a parent window for your dialog constructor?

--
jlr
http://jlamas.blogspot.com/[^]

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 5:38

bsummers

14-Jul-05 5:38

I believe so...here is the constructor...
CPartitionsDlg::CPartitionsDlg(CWnd* pParent /*=NULL*/)
: CDialog(CPartitionsDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CPartitionsDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
// m_hIcon = AfxGetApp()->LoadIcon(IDR_PARTITION);
}

Re: Why is my DoModal call creating a box on my taskbar?

Jose Lamas Rios14-Jul-05 5:42

Jose Lamas Rios

14-Jul-05 5:42

bsummers wrote:
I believe so...here is the constructor...
CPartitionsDlg::CPartitionsDlg(CWnd* pParent /*=NULL*/)

Ok, CPartionsDlg constructor accepts a CWnd* as a parent window. But are you passing a CWnd* as a parent window when constructing the object? Please show the line where you declare the CPartitionsDlg variable on which you call the DoModal method.

--
jlr
http://jlamas.blogspot.com/[^]

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 5:45

bsummers

14-Jul-05 5:45

Here it is....

// Call the Partition Dialog.
CPartitionsDlg part;
part.DoModal();

Should be calling the default constructor.

Brian

Re: Why is my DoModal call creating a box on my taskbar?

Jose Lamas Rios14-Jul-05 5:58

Jose Lamas Rios

14-Jul-05 5:58

Yes, that's calling the default constructor with no parameter, so the constructor instantiates the parameter with the default value, which is NULL.

Try passing some window as a parameter to the constructor and see if that fixes your problem. Something like:

If that code is inside a method of some class derived from a CWnd:

// Call the Partition Dialog.
CPartitionsDlg part(this);
part.DoModal();

Otherwise:

// Call the Partition Dialog.
CPartitionsDlg part(AfxGetMainWnd());
part.DoModal();

--
jlr
http://jlamas.blogspot.com/[^]

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 6:02

bsummers

14-Jul-05 6:02

Jose Lamas Rios wrote:
Try passing some window as a parameter to the constructor and see if that fixes your problem.

No luck. This didn't fix the problem. Frown | :(

Brian

Re: Why is my DoModal call creating a box on my taskbar?

enigmavariant14-Jul-05 6:10

enigmavariant

14-Jul-05 6:10

May sound obvious but is the 'Application Window' property of the dialog resource set to false?

Tim C

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 6:14

bsummers

14-Jul-05 6:14

I tried looking at the dialog properties and Don't see an 'Application Window' setting. I'm on Visual 6.0.

Brian

Re: Why is my DoModal call creating a box on my taskbar?

enigmavariant14-Jul-05 6:26

enigmavariant

14-Jul-05 6:26

Maybe it's new for .NET. You could try this link, see if it sheds any light...

http://msdn.microsoft.com/msdnmag/issues/0500/c/default.aspx[^]

Tim C

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 6:36

bsummers

14-Jul-05 6:36

Thanks Tim that did the trick
I have to manually edit the resource file, but that did the trick. Thanks for all the help everyone! Wink | ;)

Brian

Re: Why is my DoModal call creating a box on my taskbar?

David Crow14-Jul-05 6:28

David Crow

14-Jul-05 6:28

Is it a dialog-based application? If so then what you describe is normal behavior.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Why is my DoModal call creating a box on my taskbar?

bsummers14-Jul-05 6:37

bsummers

14-Jul-05 6:37

Tim C has lead me to a link that solved the problem. Thank you everyone for your help.
Sincerely,
Brian Summers

How can I open a web browser with POST in c++

chemadefoz14-Jul-05 5:00

chemadefoz

14-Jul-05 5:00

I need to open a web browser form my application
I use 'ShellExecute()' to open the web browser and connect a URL,
but it seems that can't use POST method
How do I open a web browser with POST in c++?

Thanks in advance

José Manuel Dorado Pardo

Re: How can I open a web browser with POST in c++

ThatsAlok14-Jul-05 5:06

ThatsAlok

14-Jul-05 5:06

chemadefoz wrote:
but it seems that can't use POST method
How do I open a web browser with POST in c++?

You have to use WinInet api's for posting data to a URL.
Here are the link that will help you to proceed :-

http://www.codeproject.com/internet/httpget-post.asp[^]

http://www.codeproject.com/internet/amhttputils.asp[^]

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cheers,
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