Re: System.OutOfMemory exception: error creating window handle - C# Discussion Boards

Re: Read and write to a file!

14-Oct-04 8:58

/ means root, so unless MediaInformation is the root element, this won't work. Dropping any preceeding / means that MediaInformation must be a child of the current node. // means search under any node.

Without seeing his XML there's no way of knowing.

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ee9903515-Oct-04 1:59

ee99035

15-Oct-04 1:59

<?xml version="1.0" encoding="iso-8859-1" ?>
<Mpeg7 xmlns="urn:mpeg:mpeg7:schema:2001" xmlns:xsi="http://www.w3.org.2001/XMLSchema-instance" xmlns:mpeg7="urn:mpeg:mpeg7:schema:2001">
<Description xsi:type="ContentEntityType">
<MultimediaContent xsi:type="AudioVisualType">
<AudioVisual>
<MediaInformation>

</MediaInformation>
<TextAnnotation>
<FreeTextAnnotation>
Fim da partida Andrejs Rubins.
</FreeTextAnnotation>
</TextAnnotation>
<Semantic>
<Label>
<Name></Name>
</Label>
<SemanticBase xsi:type="EventType" id="68">
<Label>
<Name> Fim da partida </Name>
</Label>
<Relation Source="4"/>
<Relation Source="82"/>
<SemanticPlace>
<Label>
<Name> </Name>
</Label>
</SemanticPlace>
<SemanticTime>
<Label>
<Name> 90 </Name>
</Label>
</SemanticTime>
</SemanticBase>
<SemanticBase xsi:type="AgentObjectType" id="4">
<Label>
<Name> Letónia </Name>
</Label>
<Agent xsi:type="OrganizationType">
<Name>Letónia </Name>
</Agent>
</SemanticBase>
<SemanticBase xsi:type="AgentObjectType" id="82">
<Label>
<Name> Andrejs Rubins </Name>
</Label>
<Agent xsi:type="PersonType">
<Name>
<GivenName>Andrejs</GivenName>
<FamilyName>Rubins</FamilyName>
</Name>
</Agent>
</SemanticBase>
</Semantic>
</AudioVisual>
</MultimediaContent>
</Description>
</Mpeg7>

Here´s one example of my XML, I want to add information to the MediaInformation element. But I don´t know what is my namespace... =/

Invoking Secure Web Services

David Salter14-Oct-04 3:53

David Salter

14-Oct-04 3:53

I'm trying to invoke a Web Service that has been secured with Basic authentication. (Its a Java webservice running on JBoss).

When I try to access the web service I get a HTTP 505 error implying that the HTTP Version is incorrect, but I doubt it is.

Can anyone who has accessed secure webservices have a look at the following client C# code and tell me if it looks OK. I need to establish if its my client (C#) code thats wrong, or the server (Java) code. Is this the correct way to authenticate against a web service that uses BASIC authentication?

Thanks.

proxy.AdministrationWS admin = new proxy.AdministrationWS();
NetworkCredential creds = new NetworkCredential("username", "password");
admin.PreAuthenticate=true;
admin.Credentials = creds;
			
try
{
	String name = admin.DoStuff();
	MessageBox.Show(name);
}
catch (Exception ex)
{
	MessageBox.Show(ex.Message);
}

Re: Invoking Secure Web Services

Heath Stewart14-Oct-04 10:13

System.OutOfMemory exception: error creating window handle

14-Oct-04 10:13

For BASIC you need to set a REALM (domain) with which to authentication. You also need to specify that BASIC authentication should be used by using the CredentialCache and assigning that to admin.Credentials:

NetworkCredential cred = new NetworkCredential(username, password, domain);
CredentialCache cache = new CredentialCache();
cache.Add(new Uri(url), "Basic", cred);
// ...
admin.Credentials = cache;

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propertygrid

AlanJones14-Oct-04 3:43

AlanJones

14-Oct-04 3:43

I just starting to work on C# last month. Just bear with me if I show my lack of experiences. I am trying to make program that populating the list in propertygrid. I found good article for me like this:http://www.codeproject.com/cs/miscctrl/customizingcollectiondata.asp#xx653437xx . But, I really have problem with standard editor. I cant rid the ... button(I think it called modal) from propertygrid. I tried to use : public override UITypeEditorEditStyle GetStyle(ITypeDescriptorContext context)
{
return UITypeEditorEditStyle.None;
}
but somehow it blocked me to show the list. For example, if I am using without codes above, then it will show whole list, but it showed the ... button(modal whatever it is) on the list that I dont want to see. If I am using with codes above, then it wont show the list at all but modal button wont appear at all. what is your suggestions about my situation?

about this articles that I linked, is there another way to make list in propertygrid instead using with CollectionBase, ICustomTypeDescriptor bec I dont like those?

My property grid should look like this:
CategoryAttribute:
+ ITEM1
+ ITEM2
+ ITEM3
+ ITEM4
+ ITEM5

Thanks in advance!!

Serge Lobko-Lobanovsky14-Oct-04 3:33

Serge Lobko-Lobanovsky

14-Oct-04 3:33

Hi,

Software:
.NET 1.1 (both non-SP and SP1)
Visual Studio .NET 2003
MS SQL Server 2000 SP3
Windows XP SP 2

Hardware:
Intel Celeron 1700, Pentium 4 2.4GHz, AMD Athlon 1100
RAM 256-512 DDR

I've run into a strange problem. There is an application which allows to:
1) connect to a certain device using a modem
2) manage different aspects (mostly, working with MS SQL Server)
Serial communication is done on a separate thread, one per each connection.
The maximum number of simultaneous connections is 20.

Note: what is written below applies only when running the application not
under the debugger.

The app starts and works correctly: accepts incoming calls, performs
different scenarios, dials out when necessary. When the comms thread needs to
modify the UI, it is correctly done using Control.BeginInvoke. However,
sometimes (on different computers) the following exception is thrown:

System.OutOfMemory exception: error creating window handle --->
System.NullReferenceException: Object reference not set to an instance of
object.
at System.Windows.Forms.ThreadContext.OnThreadException
at System.Windows.Forms.Control.WndProcException
at System.Windows.Forms.ControlNativeWindow.OnThreadException
at System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr)
at System.Windows.Forms.UnsafeNativeMethods.IntCreateWindowEx(int32, string,
string, int32, int32, int32, int32, int32, HandleRef, HandleRef, HandleRef,
object)
at System.Windows.Forms.UnsafeNativeMethods.CreateWindowEx(int32, string,
string, int32, int32, int32, int32, int32, HandleRef, HandleRef, HandleRef,
object)
at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams)
-- End of inner exception stack trace --
at System.Windows.Forms.ThreadContext.OnThreadException
at System.Windows.Forms.Control.WndProcException
at System.Windows.Forms.ControlNativeWindow.OnThreadException
at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef, int32)
at System.Windows.Forms.Control.SetVisibleCore
at System.Windows.Forms.Form.SetVisibleCore
at System.Windows.Forms.Control.set_Visible
at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
at System.Windows.Forms.Form.ShowDialog
at <my form-my="" code="" to="" showdialog="">

What could be the problem?
Let me stress that this does not happen under debuggers. When debugging, the
exception is not thrown. It was noted that this happens more often when
having an active connection.

Regards,
Serge (Logic Software, Easy Projects .NET site)

Re: System.OutOfMemory exception: error creating window handle

Heath Stewart14-Oct-04 9:55

Re: System.OutOfMemory exception: error creating window handle

14-Oct-04 9:55

I see from your stacktrace that you're using ShowDialog. When using modal dialogs, you need to make sure you dispose your forms or you will lose memory quickly. This isn't always a problem running under a debugger because the GC hasmore time to clean-up resources.

When displaying modal dialogs using ShowDialog, it's best to use the using block statement as below:

using (MyForm form = new MyForm())
{
  form.ShowDialog();
}

This compiles to something similar to this:

MyForm form = null;
try
{
  form = new MyForm();
  form.ShowDialog();
}
finally
{
  if (form != null) ((IDisposable)form).Dispose();
}

This way - even if an exception is thrown - the form's resources (i.e., the message pump on the new thread and other native resources used by the controls, since the controls merely encapsulate native Common Controls and other windows, are freed-up.

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Microsoft

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Serge Lobko-Lobanovsky14-Oct-04 21:56

Serge Lobko-Lobanovsky

14-Oct-04 21:56

Thank you, Heath. I will implement this.

Regards,
Serge (Logic Software, Easy Projects .NET site)

Re: System.OutOfMemory exception: error creating window handle

Serge Lobko-Lobanovsky26-Oct-04 6:14

Serge Lobko-Lobanovsky

26-Oct-04 6:14

I did implement the scheme you suggested, however I'm still having the same problems. Could you suggest anything else? Should I call GC.Collect() manually? Or any other ideas?

Also, I put [STAThread] attribute as suggested to me at MSDN managed newsgroups, which also didn't help.

Regards,
Serge (Logic Software, Easy Projects .NET site)

Re: System.OutOfMemory exception: error creating window handle

ave\kevinchen3-May-09 23:27

ave\kevinchen

3-May-09 23:27

I also met this problem days ago and finally found I set the value for a variable in wrong section(Notice the innerException). I set it in Form_Load(), and everything goes well when I move it to constructor. May this helps.

Filling a closed contour in a given bitmap

E6AD14-Oct-04 2:52

E6AD

14-Oct-04 2:52

I was wondering if there is a built in function in C# that performs filling. I 'll give it the closed contour as an input and I need the filled contour as an output..Does anyone know a built in function that does that,or a ready made program that one did before that I could use. Please reply ASAP

EA

Re: Filling a closed contour in a given bitmap

Gary Thom14-Oct-04 3:16

Automatic printing to pdf

14-Oct-04 3:16

There are a number of articles with programming examples on this site (and others) relating to converting a bitmap to a region for irregularly shaped forms and controls. You can of course fill a region for any purpose Smile | :)

http://www.codeproject.com/csharp/bmprgnform.asp

Sorry I'm using FireFox, no clickety.. OMG | :OMG:

Gary

sverre.andersen14-Oct-04 0:54

14-Oct-04 0:54

Hello!

My app open and shows HTML files.
I have a typical pdf-distiller printer driver on my system.

Is it possible to create a printfunction that print/save the shown HTML file automaticly?
- The user should only need to press the print button. I do not want the print dialog to be shown.

Any suggestions?

/sverre

Gary Thom14-Oct-04 3:17

14-Oct-04 3:17

I asked the same question a few months ago, and the answer was no Frown | :(

If you do find a method, please post me a reply! Smile | :)

Gary

Heath Stewart14-Oct-04 7:11

14-Oct-04 7:11

I'm not sure who would've told you that, but you can do it. In fact, if you're embedding the WebBrowser document and want to print whatever is loaded, it only takes a single method call.

See my reply to the parent at http://www.codeproject.com/script/comments/forums.asp?msg=948011&forumid=1649#xx948011xx[^].

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Gary Thom14-Oct-04 7:40

14-Oct-04 7:40

Sorry maybe I wasn't clear..

When I asked the question, this is what I needed (still do).

I have written an application that uses / inherits from System.Drawing.Printing.PrintDocument.

Printing works perfectly for print preview and print to printer. I have Adobe PDF (full verion) installed, I want to bypass the question of filename and print directly to a supplied PDF file, .Net does not implement the Printer Setting PrintToFile so it is not possible to set the name of the file without the dialog appearing.

Please correct me if I'm wrong, I'd love to get this working.

Gary

While you're waiting, read the free novel we sent you. It's a Spanish story about a guy named 'Manual.'
- Dilbert

Heath Stewart14-Oct-04 12:18

14-Oct-04 12:18

That's a different question, though it may be the same subject matter as what the other poster is having. I guess it's all about what details you give when asking. I was assuming both of you mean the Printer dialog that comes up like in applications when you click File -> Print...

PrinterSettings.PrintToFile is implemented, however. The problem is, IIRC, that the Adobe Distiller print driver has it's own prompt. From what I remember when using it (a version or two back) is that even if you had the printer driver's file set, it didn't affect Adobe's pseudo-printer driver. It would prompt you anyway. Try it just through windows.

What you could do, though, is print to a file in a directory watched by the capture application (can't remember the name, sorry; it's part of the full Acrobat install). If you use a PostScript driver (any PS driver will do) and print to a file in that directory with the .ps extension, this application will automatically convert it to PDF and put it in another directory.

This solution has worked for me in the past when I had to write clients on non-Windows platforms (like AS/400 and OS/2 Warp).

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Microsoft

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Gary Thom15-Oct-04 8:21

15-Oct-04 8:21

Hi Heath,

Heath Stewart wrote:
PrinterSettings.PrintToFile is implemented,

there is an article on the Microsoft site PrintDocument Class" Does Not Implement the PrintToFile Feature[^] which explains my problem better than I did D'Oh! | :doh:

I have done something similar to your suggestion for another project, however in this case there is still the problem that I am prompted for the name of the file to print to, I want it to all be hidden from the user (my wife). I want to print to PDF and attach the PDF to an e-mail, all automatically.

Gary

While you're waiting, read the free novel we sent you. It's a Spanish story about a guy named 'Manual.'
- Dilbert

Heath Stewart15-Oct-04 9:03

15-Oct-04 9:03

That's over a year old. I actually looked at the IL in the assembly and it is implemented and apparently passed to the print driver.

Once again, though, last time I used Acrobat Distiller I noticed that it prompts for a filename itself and does not use the print driver's "Print to file" setting.

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Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Heath Stewart14-Oct-04 7:00

14-Oct-04 7:00

Sure you can. You use the PrintDocument along with the Print method, which does not use the PrintDialog. You can specify the setting programmatically or read them from user settings (with defaults), which would be more appreciated by users that might need to tweak settings.

The .NET Framework SDK documentation also includes samples for using the XmlDocument class.

What's even easier is if you're embedding the WebBrowser control, you can use ExecWB to print without prompting like so:

object missing = Missing.Value;
axWebBrowser2.ExecWB(
  OLECMDID.OLECMDID_PRINT,
  OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
  ref missing,
  ref missing);

This uses the browser's print rendering so that you don't have to - definitely something you should take advantage of if you're embedding the WebBrowser control.

You can also do something similar using the IOleCommandTarget interface with MSHTML if you're using that to render instead of dealing with the browser overhead.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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sverre.andersen19-Oct-04 3:01

19-Oct-04 3:01

Hello!

I receive errors when I try to compile your suggestion...
OLECMDID and OLECMDEXECOPT could not be found...

In which namespace are they located?

/sverre

Heath Stewart19-Oct-04 5:22

19-Oct-04 5:22

These are structs declared for COM, so you first need to create an interop assembly. If you're using the WebBrowser control, you've already got that assembly. You need to reference either Interop.SHDocVw.dll or simply SHDocVw.dll (depending on how you imported the typelib; it could be any name, really). Then reference the only namespace that assembly defines. Again, this depends on how you imported it. If you just used VS.NET, then the namespace should be SHDocVw.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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sverre.andersen19-Oct-04 10:28

19-Oct-04 10:28

Thanks!

It's working!!!

/sverre

sverre.andersen21-Oct-04 0:57