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• javascript adding javascript to iframe dynamically

  - by Sendoh

  The code below will add an iframe dynamically, is there a way to insert javascript to this iframe dynamically? Thx var iFrame = document.createElement('iframe'); var iFrameSRC = "http://www.google.com"; iFrame.name = 'hehe'; iFrame.id = 'hehe'; iFrame.src = iFrameSRC; iFrame.width = '1px'; iFrame.height = '1px'; iFrame.frameBorder = 0; iFrame.style.overflow = "hidden"; iFrame.style.align = "left"; iFrame.style.display = "block"; iFrame.style.fontSize = "10px"; bodyInner.appendChild(iFrame);

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• Elisp performance on Windows and Linux

  - by JasonFruit

  I have the following dead simple elisp functions; the first removes the fill breaks from the current paragraph, and the second loops through the current document applying the first to each paragraph in turn, in effect removing all single line-breaks from the document. It runs fast on my low-spec Puppy Linux box using emacs 22.3 (10 seconds for 600 pages of Thomas Aquinas), but when I go to a powerful Windows XP machine with emacs 21.3, it takes almost an hour to do the same document. What can I do to make it run as well on the Windows machine with emacs 21.3? (defun remove-line-breaks () "Remove line endings in a paragraph." (interactive) (let ((fill-column 90002000)) (fill-paragraph nil))) : (defun remove-all-line-breaks () "Remove all single line-breaks in a document" (interactive) (while (not (= (point) (buffer-end 1))) (remove-line-breaks) (next-line 1))) Forgive my poor elisp; I'm having great fun learning Lisp and starting to use the power of emacs, but I'm new to it yet.

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• Get a list of members of a WinNT group (C#)

  - by Keith Moore

  There are a couple of questions similar to this on stack overflow but not quite the same. I want to open, or create, a local group on a win xp computer and add members to it, domain, local and well known accounts. I also want to check whether a user is already a member so that I don't add the same account twice, and presumably get an exception. So far I started using the DirectoryEntry object with the WinNT:// provider. This is going ok but I'm stuck on how to get a list of members of a group? Anyone know how to do this? Or provide a better solution than using DirectoryEntry?

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• Referencing a union inside a structure using union tag gives incorrect address

  - by AlanKley

  I had a need to declare a union inside a structure as defined below: struct MyStruct { int m_DataType; DWORD m_DataLen; union theData { char m_Buff [_MAX_PATH]; struct MyData m_myData; } m_Data; }; Initially, I tried accessing the union data as follows (before I added the m_Data declaration): MyStruct m_myStruct; char* pBuff = m_myStruct.theData::m_Buff; This compiles but returns to pBuff a pointer to the beginning of the MyStruct structure which caused me to overwrite the m_DataType & m_DataLength members when I thought I was writing to the m_Buff buffer. I am using Visual Studio 2008. Can anyone explain this unexpected behavior? Thanks.

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• Winforms Controlling Forms

  - by jack london

  How can i control all my forms from main () static void Main() { Form1 frm1 = new Form1(); Form1 frm2 = new Form1(); Form1 frm3 = new Form1(); frm1.Show(); while (frm1.Button.Clicked) { frm2.Show(); frm3.Show(); } } form.ShowDialog () helps much but the execution stack can overflow. Form.Show and Form.Hide methods runs when an application class has been set. In Application.Run (Form) way there's always a main form. and i dont want this one. Any other approach you use in this problem

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• Fastest Algorithm to scale down 32Bit RGB IMAGE.

  - by Sunny

  which algorithm to use to scale down 32Bit RGB IMAGE to custom resolution? Algorithm should average pixels. for example If I have 100x100 image and I want new Image of size 20x50. Avg of first five pixels of first source row will give first pixel of dest, And avg of first two pixels of first source column will give first dest column pixel. Currently what I do is first scale down in X resolution, and after that I scale down in Y resolution. I need one temp buffer in this method. Is there any optimized method that you know?

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• Unicode issue in Django

  - by Kave

  I seem to have a unicode problem with the deal_instance_name in the Deal model. It says: coercing to Unicode: need string or buffer, __proxy__ found The exception happens on this line: return smart_unicode(self.deal_type.deal_name) + _(u' - Set No.') + str(self.set) The line works if I remove smart_unicode(self.deal_type.deal_name) but why? Back then in Django 1.1 someone had the same problem on Stackoverflow I have tried both the unicode() as well as the new smart_unicode() without any joy. What could I be missing please? class Deal(models.Model): def __init__(self, *args, **kwargs): super(Deal, self).__init__(*args, **kwargs) self.deal_instance_name = self.__unicode__() deal_type = models.ForeignKey(DealType) deal_instance_name = models.CharField(_(u'Deal Name'), max_length=100) set = models.IntegerField(_(u'Set Number')) def __unicode__(self): return smart_unicode(self.deal_type.deal_name) + _(u' - Set No.') + str(self.set) class Meta: verbose_name = _(u'Deal') verbose_name_plural = _(u'Deals') Dealtype: class DealType(models.Model): deal_name = models.CharField(_(u'Deal Name'), max_length=40) deal_description = models.TextField(_(u'Deal Description'), blank=True) def __unicode__(self): return smart_unicode(self.deal_name) class Meta: verbose_name = _(u'Deal Type') verbose_name_plural = _(u'Deal Types')

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• Lucene Error While Reading binary block : java.io.EOFException

  - by tushar Khairnar

  Hi, I am getting java.io.EOFException while reading a binary block from lucene index. I am storing java object as byte-array in lucene index field and reading it when hit occurs. Here is stack trace : Caused by: java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780) at java.io.ObjectInputStream.(ObjectInputStream.java:280) at org.terracotta.modules.searchable.util.SerializationUtil$OIS.(SerializationUtil.java:20) I have some background threads which write into index. But i buffer them and then write them at once like 1000. Occasionally I also issue optimize() on index. When I write, I am re-opening IndexReader. Does this is happening because of IndexReader re-opening call? Thanks. Regards Tushar

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• reading a BYTE as a DWORD in Masm

  - by Help I'm in college

  Hi, once again I'm doing MASM programming. I'm trying to write a procedure using the Irvine32 library where the user enters a string which is put into an array of BYTEs with ReadString. Then it loops over that arrray and determines if each character is a number. However, when I try cmp [buffer + ecx], 30h MASM complains about comparing two things that are not the same size. Is there anyway I could read the ASCII code in each BYTE in the array as a DWORD (or otherwise extract the ASCII value in each BYTE)?

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• Match multiline regex in file object

  - by williamx

  How can I extract the groups from this regex from a file object (data.txt)? import numpy as np import re import os ifile = open("data.txt",'r') # Regex pattern pattern = re.compile(r""" ^Time:(\d{2}:\d{2}:\d{2}) # Time: 12:34:56 at beginning of line \r{2} # Two carriage return \D+ # 1 or more non-digits storeU=(\d+\.\d+) \s uIx=(\d+) \s storeI=(-?\d+.\d+) \s iIx=(\d+) \s avgCI=(-?\d+.\d+) """, re.VERBOSE | re.MULTILINE) time = []; for line in ifile: match = re.search(pattern, line) if match: time.append(match.group(1)) The problem in the last part of the code, is that I iterate line by line, which obviously doesn't work with multiline regex. I have tried to use pattern.finditer(ifile) like this: for match in pattern.finditer(ifile): print match ... just to see if it works, but the finditer method requires a string or buffer. I have also tried this method, but can't get it to work matches = [m.groups() for m in pattern.finditer(ifile)] Any idea?

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• Compiling emails into project documentation

  - by zpinter

  What's the best way to turn a bunch of email threads into a working project documentation? This other stack overflow question seems a little stale, but might be the right idea: http://stackoverflow.com/questions/11612/is-there-any-wiki-engine-that-supports-page-creation-by-email Also, Evernote shared notebooks might be an idea: http://blog.evernote.com/2009/06/25/notebook-sharing-phase-1/ Perhaps there's a good way to convert email threads into HTML or Word docs and save them to a shared dropbox folder? My ideal solution would be one where I could forward or copy a thread of emails into one spot, and go back after the fact to organize/categorize/add to it. Any ideas?

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• How to escape HAML for Javascript in Sinatra

  - by viatropos

  I would like to return a list/combobox from an ajax request ("Which on of these do you like?" type thing). I would like to write that little snippet in HAML, which converts it to HTML, but when I do, the page goes blank. I'm assuming this is because the HTML isn't escaped. Is there a way to escape HAML so I can do $("#mydiv").html(response);? Here's the method: post "/something" do # process... haml :"partials/_select", :layout => false, :locals => {:collection => choices} end ... the haml template: %select - collection.each do |item| %option{:value => item.to_s}= item.to_s ... and the javascript: success: function(responseText, statusText, xhr, $form) { $(".dialog_content").append(responseText); } I have tried the sinatra_more plugin and the escape_javascript method, but there's problems with the haml buffer in sinatra. Any ideas?

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• Export from HTML to PDF (C#)

  - by Sem Dendoncker

  Hi, In our applications we make html documents as reports and exports. But now our customer wants a button that saves that document on their pc. The problem is that the document includes images. You can create a word document with the following code: private void WriteWordDoc(string docName) { Response.Buffer = true; Response.ContentType = "application/msword"; Response.AddHeader("content-disposition", String.Format("attachment;filename={0}.doc", docName.Replace(" ", "_"))); Response.Charset = "utf-8"; } But the problem is that the images are just links an thus not embedded in the word document. Therefore I'm looking for an alternative PDF seems to be a good alternative, does anyone know a good pdf writer for C#? One that has some good references and has been tested properly? Best regards, Sem

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• How to disable scrolling the document body?

  - by Manohar

  I have a HTML which has lot of content and a vertical scrollbar appears as soon as the HTML is loaded. Now from this HTML a full screen IFRAME is loaded. The problem is when the IFRAME is loaded, the parent scrollbar still persists, I want to disable the scrollbar when the Iframe is loaded. I tried: document.body.scroll = "no", it did not work with FF and chrome. document.style.overflow = "hidden"; after this I was still able to scroll, and the whole iframe would scroll up revealing the parent HTML. My requirement is, when the IFRAME is loaded, we should never be able to scroll the entire IFRAME if the parent HTML has a scrollbar. Any ideas?

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• Null Pointer Exception on a 2D array (Java)

  - by user315156

  I have a class, "Tetris", in which one of the instance variables is "board". "board" is 2D array of Color objects. Upon the creation of a tetris object I call a method that sets the dimensions of board and then sets all of the Color objects to be the Default value, that is to say, Color.blue. public Tetris(int rows, int cols){ this.rows = rows; this.cols = cols; reset(rows, cols); } public void reset(int rows, int cols){ Color[][] board = new Color[rows][cols]; for(int i = 0; i Unfortunately, when I run the code (which obviously has not been posted in its entirety) I get a null pointer exception on the line: board[i][j] = DEFAULT_COLOR; // Color.blue; //DEFAULT-COLOR. Is there anything obviously wrong with what I am doing? (Sorry if there are glaring format issues, this is my first time on Stack Overflow)

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• Strange error in PDF2SWF and no file is created

  - by Corey

  I'm running Snow Leopard and using PDF2SWF via MacPorts. I tried this out using a simple PDF I made from text and it worked fine so I have a feeling this is a problem with my PDF. Here is the command I'm using: pdf2swf 2166D.pdf -o 2166D.swf It doesn't output any file but it throws these errors: Error: Illegal entry in bfchar block in ToUnicode CMap Error: Illegal entry in bfchar block in ToUnicode CMap NOTICE processing PDF page 1 (612x396:0:0) (move:0:0) Segmentation fault I couldn't find anything in teh Googs so now I come to you Stack Overflow. Thanks.

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• Are there any code libraries that validate/convert blog comments to XHTML strict?

  - by Matthew James Taylor

  I am working on a website in PHP where people can make comments similar to a blog, and I only want particular tags to be allowed. Are there any pre-built libraries that process comments and produce valid XHTML Strict code? I would need to do this in JavaScript so I can generate a live preview like Stack Overflow, plus in PHP before saving it to a MySQL database. The allowed HTML tags will be: strong, em, blockquote, and links (rel=nofollow not required) One way would be to allow people to directly enter the HTML into the comment field but I would prefer to use a simple mark up something like this (can be different - this is an example): *strong* _em_ [blockquote] http://www.link.com I want line breaks to be converted to <br />. Are there any code libraries that do the above?

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• Exception on dowloading Pdf file in ASP.NET

  - by Sauron

  I am downloading a Pdf file created by crystal report and I download as ReportDocument repDoc = ( ReportDocument ) System.Web.HttpContext.Current.Session["StudyReportCrystalDocument"]; // Stop buffering the response Response.Buffer = false; // Clear the response content and headers Response.ClearContent(); Response.ClearHeaders(); try { repDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "StudyReport" ); } catch( Exception ex ) { } Eventhough it is working But I got an exception base {System.SystemException} = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.} Can anyone explain what is the reason for this and how to override the exception?

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• Where do you get ArcGIS development questions answered?

  - by nw

  Where do you have the most success getting your ArcGIS development questions answered? ESRI forums? Stack Overflow? Google? Mailing lists? Blog posts? ESRI documentation? I can usually get answers to my ASP.NET/Oracle/JavaScript/C# questions in short order, but questions about ESRI products and APIs are a different matter. Posts founder in the forums, Google returns void, etc. I'm sure this is not uncommon for niche commercial products, but frustrating nevertheless. What works for you? Please share.

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• C++ project type: unicode vs multi-byte; pros and cons

  - by Stefan Valianu

  I'm wondering what the Stack Overflow community thinks when it comes to creating a project (thinking primarily c++ here) with a unicode or a multi-byte character set. Are there pros to going Unicode straight from the start, implying all your strings will be in wide format? Are there performance issues / larger memory requirements because of a standard use of a larger character? Is there an advantage to this method? Do some processor architectures handle wide characters better? Are there any reasons to make your project Unicode if you don't plan on supporting additional languages? What reasons would one have for creating a project with a multi-byte character set? How do all of the factors above collide in a high performance environment (such as a modern video game) ?

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• Accessing Active Directory Role Membership through LDAP using SQL Server 2005

  - by David Neale

  I would like to get a list of Active Directory users along with the security groups they are members of using SQL Server 2005 linked servers. I have the query working to retrieve records but I'm not sure how to access the memberOf attribute (it is a multi-value LDAP attribute). I have this temporary to store the information: DROP TABLE #ADUSERGROUPS CREATE TABLE #ADUSERGROUPS ( sAMAccountName varchar(30), UserGroup varchar(50) ) Each group/user association should be one row. This is my SELECT statement: SELECT sAMAccountName,memberOf FROM OpenQuery(ADSI, '<LDAP://hqdc04/DC=nt,DC=avs>; (&(objectClass=User)(sAMAccountName=9695)(sn=*)(mail=*)(userAccountControl=512)); sAMAccountName,memberOf;subtree') I get this error msg: OLE DB error trace [OLE/DB Provider 'ADSDSOObject' IRowset::GetData returned 0x40eda: Data status returned from the provider: [COLUMN_NAME=memberOf STATUS=DBSTATUS_E_CANTCONVERTVALUE], [COLUMN_NAME=sAMAccountName STATUS=DBSTATUS_S_OK]]. Msg 7346, Level 16, State 2, Line 2 Could not get the data of the row from the OLE DB provider 'ADSDSOObject'. Could not convert the data value due to reasons other than sign mismatch or overflow.

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• How to casue a CppUnit test to fail - from C?

  - by mawg

  I'd like to have an equivalent to CPPUNIT_ASSERT, CPPUNIT_ASSERT_MESSAGE or `CPPUNIT_FAIL' which I can call from some common C code. Our code is a mix of C and C++. Some older apps and those with specific requirements are coded in C and most, especially newer, are coded in C++. However, a lot of project-agnostic, common code, such as memory buffer pools, debug tracing, etc are coded in C. When testing a C++ app in CppUnit, I'd to be able to sprinkle some ASSSERT()s which would cause any running CppUnit test to fail. Maye something like: if testing if running in debugger (Eclipse) then asm("int3"); // stop the debugger, even if no breakpoint at this line else if running CppUnit test - fail the test and move on to next else trace to log file Most of that can be run by wrapping a macro around a few #ifdefs, but I am not sure how I would cause a CppUni test to fail from C code. Can it be done?

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• How to debug packet loss ?

  - by Gene Vincent

  I wrote a C++ application (running on Linux) that serves an RTP stream of about 400 kbps. To most destinations this works fine, but some destinations expericence packet loss. The problematic destinations seem to have a slower connection in common, but it should be plenty fast enough for the stream I'm sending. Since these destinations are able to receive similar RTP streams for other applications without packet loss, my application might be at fault. I already verified a few things: - in a tcpdump, I see all RTP packets going out on the sending machine - there is a UDP send buffer in place (I tried sizes between 64KB and 300KB) - the RTP packets mostly stay below 1400 bytes to avoid fragmentation What can a sending application do to minimize the possibility of packet loss and what would be the best way to debug such a situation ?

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• Facebook Like Box

  - by abelenky

  I'm trying to add a Facebook "Like Box" to an existing website, as described here The Page I'm promoting works just fine in preview-box on that page. But when I copy/paste the code as shown to my website, it instead shows a fraction of an empty facebook page with only a partially visible error message. <iframe src="http://www.facebook.com/plugins/likebox.php?profile_id=SenRandyGordon&amp;width=260&amp;connections=10&amp;stream=true&amp;header=true" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:260px; height:px"></iframe> I cannot figure out what I'm doing wrong, and I added "Like Box"'s in the past, before Facebook released their new API. Please help?

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• The Community-Driven GDB Primer

  - by fbrereto

  I was reading this question and realized it might be helpful for entry- and pro-level developers alike (including myself) to have a common reference for best practices in using gdb. Many questions asked on Stack Overflow could easily be solved by taking some time to step some code in a debugger, and it would be good to have a community-approved resource to "teach them how to fish", so to speak. Even for those seasoned veterans who occasionally find themselves in gdb when they are accustomed to a GUI-tastic debugger might benefit from those who are much more familiar with the command line tool. For starters (both to gdb and to prime this thread) I submit: Ninefinger's gdb primer The gdb quick reference guide, which is useful for telling you what commands are available but not how best to use them. My hope is this thread is a seed planted that is of continued value to the community. If by "continued value" the community decides to nix it altogether, well then the masses have spoken.

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