Re: Windows Forms Unhandled-Exception Dialog - .NET (Core and Framework) Discussion Boards

Re: Windows Forms Unhandled-Exception Dialog

Luc Pattyn14-Apr-10 10:53

Luc Pattyn

14-Apr-10 10:53

the SerialPort events run on a ThreadPool thread; what would keep you from having an overall try-catch in their event handler?

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Re: Windows Forms Unhandled-Exception Dialog

supercat915-Apr-10 7:17

supercat9

15-Apr-10 7:17

Luc Pattyn wrote:
the SerialPort events run on a ThreadPool thread; what would keep you from having an overall try-catch in their event handler?

How would one go about doing that? If I get a threadpool thread (e.g. using Delegate.BeginInvoke) and enter a Try-Catch, the pool won't be returned to the threadpool (and thus be available to SerialPort) until after the Try-Catch block has existed. How would one wrap the SerialPort's handlers in a try/catch block? If I try to read data from a SerialPort object which has opened a USB-to-serial converter, and the USB cable gets unplugged, I get an unhandled exception in an alien thread (often SafeHandle was Disposed, but various factors may cause different ones).

Re: Windows Forms Unhandled-Exception Dialog

Luc Pattyn15-Apr-10 7:28

Luc Pattyn

15-Apr-10 7:28

No, you put the try-catch in the handler, not the other way around.

void serial_DataReceiver(...) {
    try {
        ...
    } catch(Exception exc) {
        log(exc.ToString());
        ...
    }
}

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Re: Windows Forms Unhandled-Exception Dialog

Not Active14-Apr-10 16:26

Not Active

14-Apr-10 16:26

It doesn't matter how many threads you have in your application, they are all hosted in the same AppDomain

I know the language. I've read a book. - _Madmatt

Re: Windows Forms Unhandled-Exception Dialog

Abhinav S12-Apr-10 18:37

Abhinav S

12-Apr-10 18:37

You might want to go through this article.

Re: Windows Forms Unhandled-Exception Dialog

souren7712-Apr-10 19:08

souren77

12-Apr-10 19:08

Hi,

Thanks for the article, however, it describes how to implement _custom_ unhandled exception class.
What I want to get is _default_ handler, just like I get it in vs 2005 project.

Any other ideas?

Re: Windows Forms Unhandled-Exception Dialog

Abhinav S12-Apr-10 20:02

Abhinav S

12-Apr-10 20:02

Try running DevEnv /resetsettings from your command prompt (at your own risk).

This will reset all your VS 2008 settings.

Re: Windows Forms Unhandled-Exception Dialog

souren7712-Apr-10 23:48

souren77

12-Apr-10 23:48

Nop, didn't help. Still no default windows form unhandled exception dialog...

DLL

geeeeeeeetha12-Apr-10 2:12

geeeeeeeetha

12-Apr-10 2:12

Hi,

I have craeted one dll.some body cracked that dll.whether ASP.NET provide any alert message or any information to that owner of dll

Re: DLL

Rajesh Anuhya12-Apr-10 2:17

Rajesh Anuhya

12-Apr-10 2:17

your question is not clear..,

if That DLL is developed by you.., YOU R THE OWNER

Rajesh B --> A Poor Workman Blames His Tools <--

Re: DLL

dan!sh 12-Apr-10 2:47

dan!sh

12-Apr-10 2:47

Edit the post to make your question clear. It is very hard to understand what you are asking.

Re: DLL

Dave Kreskowiak12-Apr-10 4:09

Dave Kreskowiak

12-Apr-10 4:09

Your question isn't entirely clear.

But, if you're asking if there is any way to have a .NET DLL "phone home" and tell you that someone cracked it, no. Since .NET .DLL can be easily decompiled using Reflector, and your .DLL code is not running at the time, your code will never know that someone looked at it using Reflector.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Re: DLL

Gabriel Szabo14-Apr-10 5:07

Gabriel Szabo

14-Apr-10 5:07

well, if cracked means modified - making an assembly strong-named provides a guarantee that the assembly have not been changed since it was built.

Gabriel Szabo

Attaching a file to generated email

nhsal6912-Apr-10 1:27

nhsal69

12-Apr-10 1:27

Hi All,

I've got the following code, which runs an exe with some switches and then sends the log file to me, or at least it's supposed to.

I receive the email ok, but no attachment.. the code compiles fine..

has anyone any ideas??

<br />
        MyProcess.StartInfo.FileName = "printmig.exe"<br />
        MyProcess.StartInfo.WorkingDirectory = "c:\print backup"<br />
        MyProcess.StartInfo.Arguments = "printmig.exe /b /i"<br />
        MyProcess.Start()<br />
<br />
        MyProcess.WaitForExit()<br />
<br />
<br />
        Dim objMail As New System.Net.Mail.MailMessage()<br />
        Dim obj As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient<br />
        Dim Mailmsg As New System.Net.Mail.MailMessage<br />
        Mailmsg.To.Clear()<br />
        Mailmsg.To.Add(New System.Net.Mail.MailAddress("receivers address"))<br />
        Mailmsg.From = New System.Net.Mail.MailAddress("senders address")<br />
        Mailmsg.Subject = "(subject text)"<br />
<br />
        Dim attachment As New System.Net.Mail.Attachment("C:\file.log") 'create the attachment<br />
        objMail.Attachments.Add(attachment) 'add the attachment<br />
<br />
<br />
        Try<br />
            Mailmsg.Body = ""<br />
            obj.Host = "external smtp server" ' Modify to YOUR smtp server<br />
            obj.Send(Mailmsg)<br />
        Catch ex As Exception<br />
            Write("Error: " & ex.ToString())<br />
<br />

Cheers
nhsal69

Re: Attaching a file to generated email

Not Active12-Apr-10 2:13

Not Active

12-Apr-10 2:13

You are adding the attachment to objMail

objMail.Attachments.Add(attachment)

but you are sending Mailmsg

obj.Send(Mailmsg)

I know the language. I've read a book. - _Madmatt

Re: Attaching a file to generated email

Rajesh Anuhya12-Apr-10 2:19

Rajesh Anuhya

12-Apr-10 2:19

~~obj.Send(Mailmsg)~~

Mailmsg.Send(Mailmsg)

Rajesh B --> A Poor Workman Blames His Tools <--

Re: Attaching a file to generated email

nhsal6912-Apr-10 2:58

nhsal69

12-Apr-10 2:58

Doh!

thanks for that... I'll just get my coat.. TAXI!

C# or VB.net Compatible Data types with Delphi Data Types

vijay.victory12-Apr-10 0:41

vijay.victory

12-Apr-10 0:41

Hi All,
I have created one DLL having some functions as follows..
I want to call them from VB.net and C#.net.

1)   Function CONVERTPWDATA ( PASS1,PASS2 : INTEGER; IpStr : PWord; OpStr : PChar;
         LangName : LongInt; AFontType, BFontType : LongInt ) : PChar; StdCall;export;

2)  Function CONVERTDATAEX ( PASS1,PASS2 : INTEGER; IpStr : PChar; OpStr : PWord;
         LangName : LongInt; AFontType, BFontType : LongInt ) : PChar; StdCall;export;

Can anyone help me for Compatible Data types in .net for Delphi Data Types..

My Second Question IS

How to pass Unicode Data from .net and How to receive it back from Delphi DLL.

Thanks in Advance..

I have never failed,I just found 1000 ways that never works.
Regards,
Victory.

how to view webcam in Visual Studio 2005 please?

ugasciny11-Apr-10 7:38

ugasciny

11-Apr-10 7:38

can use .net framework for this purpose right? please guide me if i'm wrong. How do i get around with this?

Re: how to view webcam in Visual Studio 2005 please?

Som Shekhar11-Apr-10 8:29

Som Shekhar

11-Apr-10 8:29

guess you are looking for this[^]

Re: how to view webcam in Visual Studio 2005 please?

ugasciny11-Apr-10 9:51

ugasciny

11-Apr-10 9:51

i believe that is about still images? what about recording a video? any lead please? tq Smile | :)

Re: how to view webcam in Visual Studio 2005 please?

Som Shekhar11-Apr-10 10:02

Som Shekhar

11-Apr-10 10:02

well, thats a start point. You need to find ways to handle videos in c#. there are some open source libraries available. google for them.

a simple search in CodeProject would have given you the answer as well.

Anyways here

Re: how to view webcam in Visual Studio 2005 please?

Som Shekhar11-Apr-10 10:03

Som Shekhar

11-Apr-10 10:03

also Video File Saving in Windows Media Video Format for the DirectX.Capture Class Library[^]

Re: how to view webcam in Visual Studio 2005 please?

ugasciny11-Apr-10 14:19

ugasciny

11-Apr-10 14:19

tq very much Smile | :)

helps a lot

Cutom Control painted with GDI - Controls added or painted

norrisMiou10-Apr-10 1:30

norrisMiou

10-Apr-10 1:30

Hi !
I'm currently making a custom TreeView inheriting "ScrollableControl" and all parts are painted with GDI. Now, I'm going to implement the checkBox and I would like painting them too.

Is it reasonable for the performances of the application to paint controls instead of adding real controls ?
I have the same question for all parts like the "arrows / plus-minus" icon.

I want adding possibility to format the node text. Adding colors for some words or underline ...etc...
Actually, this text is painted too with GDI "DrawString". What is the best solution for you to format this text easily for the control user ?
Asking to user to enter RTF formating or Html formating and parse it before paint ?

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