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  • Is there a way to capture a bitmap from a WPF window using native C++?

    - by Mike Caron
    Imagine a document window in a MDI application which contains a child WPF window, say a sidebar for example. How can one get a bitmap containing both the WPF pixels AND the GDI (non-wpf) pixels? I've discovered that when making my thumbnail preview for the Win7 taskbar app icon hover, I get black in the parts of the preview where the WPF pixels should be. My current method simply grabs a bitmap capture of the document window. Then I get a DC for the preview, make a memory DC from it and select my bitmap into it. Then I do some size adjustments and bitblt the memory dc to the real dc. I'm guessing that the BitBlt operation doesn't take into account the fact that the WPF pixels are hardware accelerated and therefore need to be grabbed from the graphics hardware. All the stuff in GDI is managed just fine, though and when there's no WPF child windows, the preview image looks fine. I'm wondering if it's at all possible to grab a bitmap of the WPF window from native C++. Then I can blt that onto the black area of the previous preview.

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  • Win2k3 password Authentication using LDAP in VC++

    - by user001
    Hi, I need to implement the Win2k3 password validation policy. As my application resides on Win2k3 cane we validate the password directly with windows domain password by using LDAP. This is because application design does not want to store 8/more password entry into DB and validate new password against that. As Windows already does same thing and using LDAP we can lookup into windows server. Can any one please let me know LDAP API to fulfill above requirement in VC++.

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  • How to add data to sql but for one id and more than one data ?

    - by Phsika
    i have one id and more filepaths.forexample: StudyInstanceUid:123456 FilePath: C:/a.jpg C:/b.jpg C:/c.jpg C:/d.jpg C:/e.jpg Result added table: 123456|C:/a.jpg 123456|C:/b.jpg 123456|C:/c.jpg 123456|C:/d.jpg 123456|C:/e.jpg How can i add more than one path for one id public bool AddDCMPath2(string StudyInstanceUid, string[] FilePath) { SqlConnection con = new SqlConnection("Data Source=(localhost);Initial Catalog=ImageServer; User ID=sa; Password=GENOTIP;"); SqlCommand cmd = new SqlCommand("INSERT INTO StudyDCM (StudyInstanceUid,FilePath) VALUES (@StudyInstanceUid,@FilePath)", con); try { con.Open(); cmd.CommandType = CommandType.Text; foreach (string filepath in FilePath) { cmd.Parameters.AddWithValue("@StudyInstanceUid", StudyInstanceUid); cmd.Parameters.AddWithValue("@FilePath", filepath); cmd.ExecuteNonQuery(); } } finally { if((con!=null)) con.Dispose(); if((cmd!=null)) cmd.Dispose(); } return true; }

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  • Why can one null return be tested but another throws an exception?

    - by mickey
    I want to test if an xml attribute is present. Given this: XmlAttributeCollection PG_attrColl = SomeNodeorAnother.Attributes; This first test works: if (null != PG_attrColl["SomeAttribute"]) "GetNamedItem" is supposed to return null, but the following test throws an exception complaining about the null it returns. if (null != PG_attrColl.GetNamedItem("SomeAttribute").Value;) Why the difference? Just curious.

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  • Cant install .NET application in Clients PC

    - by Niraj Doshi
    Hello all, My client's PC runs Windows 7 Ultimate with .netframework 4 client profile. I am unable to install my application developed in VS2008. I tried uninstalling .NET Framework 4 From his PC and running the Clean up tool provided by Microsoft. But still I am unable to install it successfully. It provides Error 1001. I tried running the program as administrator. I also tried to Turn on .net 3.5 feature from add or remove program. Thanks in advance. :) Edit: The error what i get is shown here. Furthermore, I have confirmed that it is a 32bit processor and i run x86 release version of setup The application is developed in a Windows 7 OS with .NET Framework 3.5 I have installed this application in 7 PCs which have .NET 3.5 installed in them and having OS Windows XP,Vista and Windows 7; and all are working fine. In clients PC, when I try to install .NET 3.5 again, the installer starts but then it disappears suddenly without doing anything I have tried turning on .NET 3.5 framework feature from control panel Program and Features. I have tried running the program as Administrator I have tried setting the application setup in Windows XP and Vista compatible mode. But still the issue persists. Thanks :)

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  • Can I correctly debug assemblies loaded with the 'AssemblyResolve' event?

    - by Thiado de Arruda
    I'm experimenting with the AppDomain's 'AssemblyResolve' event by hidding the depedencies for an executable file in another folder. The assemblies seem to beloading and executing fine, however debugging seems to be crazy, sometimes it hits my break points, sometimes it doesnt , and sometimes it hits the same code twice(It seems absurd but I'm sure the code is executing only once). I don't understanding how debuggers works but I guess it has something to do with the PDB files. Anyone got an idea of what might be happening and how can I fix it? Edit: Let me add that I'm calling methods on the dynamically loaded assemblies using reflection, sometimes the method I'm stepping over throws an exception that only pops at a later time.

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  • GridView CheckBox Disable

    - by zxc
    I have a gridview populated by checkbox using the code below Data Source Result: Branch,101,102,103,104,105,106,107,108,109,110 00001,null,null,null,null,null,null,null,null,null,null 00016,1,1,1,1,1,0,0,0,0,0 00244,1,1,1,1,1,1,1,1,1,1 <asp:TemplateField HeaderText="101"> <ItemTemplate> <asp:CheckBox runat="server" id="cb101" Checked='<%# Eval("101").ToString().Equals("1") %>' /> </ItemTemplate> </asp:TemplateField>... and so on It is properly working for checkbox if if the column is 0 and 1. Now what I need to do is if the column is null the checkbox should be disabled/readonly

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  • RC2135 file not found error

    - by user333422
    Hi, I manually added code fro a new dialog box in my .rc file and I have started getting this error. error RC2135: file not found: 0 I don't understand this error as it is not specifying any filename. Any help is appreciated. Thanks, SG

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  • difference in using virtual and not using virtual

    - by numerical25
    In C++, whether you choose to use virtual or not, you can still override the base class function. The following compiles just fine... class Enemy { public: void SelectAnimation(); void RunAI(); void Interact() { cout<<"Hi I am a regular Enemy"; } private: int m_iHitPoints; }; class Boss : public Enemy { public: void Interact() { cout<<"Hi I am a evil Boss"; } }; So my question is what is the difference in using or not using the virtual function. And what is the disadvantage.

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  • How To Block The UserName After 3 Invalid Password Attempts IN ASP.NET

    - by shihab
    I used the following code for checking user name and password. and I want ti block the user name after 3 invalid password attempt. what should I add in my codeing MD5CryptoServiceProvider md5hasher = new MD5CryptoServiceProvider(); Byte[] hashedDataBytes; UTF8Encoding encoder = new UTF8Encoding(); hashedDataBytes = md5hasher.ComputeHash(encoder.GetBytes(TextBox3.Text)); StringBuilder hex = new StringBuilder(hashedDataBytes.Length * 2); foreach (Byte b in hashedDataBytes) { hex.AppendFormat("{0:x2}", b); } string hash = hex.ToString(); SqlConnection con = new SqlConnection("Data Source=Shihab-PC;Initial Catalog=test;User ID=SOMETHING;Password=SOMETHINGELSE"); SqlDataAdapter ad = new SqlDataAdapter("select password from Users where UserId='" + TextBox4.Text + "'", con); DataSet ds = new DataSet(); ad.Fill(ds, "Users"); SqlDataAdapter ad2 = new SqlDataAdapter("select UserId from Users ", con); DataSet ds2 = new DataSet(); ad2.Fill(ds2, "Users"); Session["id"] = TextBox4.Text.ToString(); if ((string.Compare((ds.Tables["Users"].Rows[0][0].ToString()), hash)) == 0) { if (string.Compare(TextBox4.Text, (ds2.Tables["Users"].Rows[0][0].ToString())) == 0) { Response.Redirect("actioncust.aspx"); } else { Response.Redirect("actioncust.aspx"); } } else { Label2.Text = "Invalid Login"; } con.Close(); }

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  • Using LINQ to isolate a particular obect from a list of objects

    - by dezkev
    Hello All, I am trying my hand at making an invaders clone. there are 30 aliens arranged in a 5x 6 matrix on screen. I need to give the bottom most alien the ability to fire a shot. I am using LINQ to group the aliens into 5 groups based on Location.X and then sort the groups descending.I then need to choose one of the groups ( that gives me 5 groups) and select the First alien in the group and use it;s coordinate to fire a shot. My code below ,well ,works , but aliens in ANY row are merrily firing shots- not just the bottom most. Pl look at my code below and tell me whats wrong. (r = an instance of the Random class, all aliens are in a list called invaders). { var query = (from inv in invaders group inv by inv.Location.X into invgroup orderby invgroup.Key descending select invgroup).ToList(); var invfirst = query[r.Next(query.Count)].First(); invaderShots.Add(new Shot( new Point(invfirst.Area.X + invfirst.Area.Width / 2, invfirst.Area.Y + invfirst.Area.Height + 5), displayrect, Shot.Direction.Down)); }

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  • Cannot perform an ORDERBY against my EF4 data

    - by Jaxidian
    I have a query hitting EF4 using STEs and I'm having an issue with user-defined sorting. In debugging this, I have removed the dynamic sorting and am hard-coding it and I still have the issue. If I swap/uncomment the var results = xxx lines in GetMyBusinesses(), my results are not sorted any differently - they are always sorting it ascendingly. FYI, Name is a varchar(200) field in SQL 2008 on my Business table. private IQueryable<Business> GetMyBusinesses(MyDBContext CurrentContext) { var myBusinesses = from a in CurrentContext.A join f in CurrentContext.F on a.FID equals f.id join b in CurrentContext.Businesses on f.BID equals b.id where a.PersonID == 52 select b; var results = from r in myBusinesses orderby "Name" ascending select r; //var results = from r in results // orderby "Name" descending // select r; return results; } private PartialEntitiesList<Business> DoStuff() { var myBusinesses = GetMyBusinesses(); var myBusinessesCount = GetMyBusinesses().Count(); Results = new PartialEntitiesList<Business>(myBusinesses.Skip((PageNumber - 1)*PageSize).Take(PageSize).ToList()) {UnpartialTotalCount = myBusinessesCount}; return Results; } public class PartialEntitiesList<T> : List<T> { public PartialEntitiesList() { } public PartialEntitiesList(int capacity) : base(capacity) { } public PartialEntitiesList(IEnumerable<T> collection) : base(collection) { } public int UnpartialTotalCount { get; set; } }

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  • Copy text from website.

    - by VBeginner
    So, I've been saving a .txt file from a website and using... My.Computer.FileSystem.ReadAllText() To put it into a string. But I figured it'd be more efficient to just grab it directly. How do I go about this? Thank you.

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  • C/C++ detect network type

    - by Gavimoss
    I need to write a win32 c/c++ application which will be able to determine whether the PC it's running on is connected to one of 2 networks. The first network is the company LAN (which has no internet connection) and the second network is a standalone switch with a single PC connected to it (the PC that the program is running on). I'm pretty new to network programming but so far I have tried testing to see if a network drive which is held on our LAN can be mapped. This works fine if the PC is connected to the LAN, the drive mapping succeeds so so LAN detection is successful. However, if the PC is connected to the switch, this results in a VERY long timeout which is not a suitable as it will delay the program so much as to make it unusable. Does anyone have any alternative suggestions? I'm using c/c++ in VS 6.0

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  • VB.NET take each letter of a word and display in ListBox

    - by Kaleet
    Private Sub btnWord_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnWord.Click Dim Inputter As String Dim Words As String = "" Do Inputter = InputBox("Enter word", "Enter Word") If Inputter <> String.Empty Then lstDisplay.Items.Add(Inputter) Word += Inputter.Substring(0, 1) End If Loop Until Inputter <> String.Empty ' SOMETHING GOES HERE!!!!!' lstDisplay.Items.Add("---") lstDisplay.Items.Add(Word) End Sub Here is how it works, when you click the button it displays an input box so for example type in "CAT". But I can't figure out how to get it to do C (newline) A (newline) T (newline) within the listbox. Please help! C A T - CAT

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  • Strange exception phenomenon in Windows 7

    - by Level 2
    I spot some interesting articles about exception handle in CodeProject http://www.codeproject.com/KB/cpp/seexception.aspx After reading, I decided to do some experiment. The first time I try to execute the following code char *p; p[0] = 0; The program died without question. But After several times when I executed the same problem binary code, it magically did fine. Even the following code is doing well. Any clue or explanation? char *p p[1000] = 'd'; cout<<p[1000]<<endl; My O/S is Windows 7 64bit and compiler is VS2008 rc1.

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  • mfc, how can i make a proccess in an OnLButtonDown() event happen again and again untill i live the

    - by Erez
    What happen untill now is this... Any line happens once, and if i use a while(1) or while (nFlags == MK_LBUTTON) its working as it should but i get a crash... The other problem, or mabye the same one is the delay if i will be able to do it, mabye using while() with Timer()????? I was thinking about Timer() to recall the function with delay but i can't call OnLButtonDown() becouse as i understand it only a messege can call it with the arguments..... 10x

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  • Qt, Color Picker Dialog?

    - by high6
    Is there a color picker dialog for Qt like the following? Also it needs to have a OnColorChanged signal which is called when ever the selected color changes. I want to give a live preview when they are changing the colors, that is why. Using google I could only find this one that was a triangle in side of a circle and personally I think it looks ugly.

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  • How to access Excel Max Column value?

    - by Phsika
    i try to create table from excel rows. however; excel columns : column1 has max 200 character row column2 has max 300 character row column3 has max 500 character row So i need to create sql create MyTable column3 nvarchar(500) according to Excel Max Character.

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  • Best way to fix an out-of-sync TFS workspace after a back-up/restore

    - by DanO
    Wednesday I had to restore from a back-up image I made on Monday. At the time of the snapshot I had about 20 files modified, which I later checked in, and more, on Tuesday. Now that I am back to a snapshot from Monday morning, my workspace has all of these files checked-out or added, etc. even my check-in comments and work-item associations. But I already did that check-in on Tuesday. I'm thinking I will shelve all the pending changes (just in-case), and then just undo all changes, and get latest (specific version). And I should be back to good. Any cautions or suggestions? (TFS 2008, VS2010)

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