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Re: Programming problem Joe Woodbury19-Dec-02 5:45 Joe Woodbury 19-Dec-02 5:45  Key problem: - Sum is not initialized to zero. (Set your warnings to level 4 if using VC7. If using VC6, you'll have to use pragma to ignore several warnings.) Minor problems: - Total is not used - num should be a local variable. Algorithm problem: - Using pow() is inefficient. (Remember, it doesn't matter in which order you add the digits!) Re: Programming problem Anonymous19-Dec-02 7:23 Anonymous 19-Dec-02 7:23  So do you advise me putting cin >> digit into the for loop and then adding the digits to sum? Re: Programming problem Joe Woodbury19-Dec-02 10:17 Joe Woodbury 19-Dec-02 10:17  Only if you are allowed to have the user enter one digit at a time. Otherwise you can process the digits from right to left: while (digit) { sum += digit%10; digit /= 10; } Of course this assumes: digit >= -99999 && digit <= 99999. Open file duvaft19-Dec-02 3:06 duvaft 19-Dec-02 3:06  Hi, I have a problem (I think a big problem). The language is C++. The operation sistem is Windows 2000. If I create two application. In the first application fill a structure, open a file and send this information (pointer to file) at second application which fill the file. When the second application end your job, the control switch at first application which close the file. The question is: can I open a file in a application sending the pointer at second applicaton to fill the file. Re: Open file Joe Woodbury19-Dec-02 5:20 Joe Woodbury 19-Dec-02 5:20  No. Handles are unique to an application's memory space. CSocket multithreading[urgent] junni19-Dec-02 2:47 junni 19-Dec-02 2:47  Hi, Can any one help me out in sorting out the problem that is getting my brains out ...it's like Iam calling the CSocket object in the secondary thread and at this point I get an exception raised "Debug assertion failed" ..and I did the same thing with the raw socket handle and it worked absolutely perfect ..can ne one plz help cause I have to use the CSocket class and plz if there are any alternatives.. Thanx and Regards, Junni Re: CSocket multithreading[urgent] Rage19-Dec-02 2:48 Rage 19-Dec-02 2:48  Post some code. ~RaGE(); Re: CSocket multithreading[urgent] junni19-Dec-02 3:02 junni 19-Dec-02 3:02  CSocket* connect() { pClientSocket = new CSocket; pClientSocket->Create(); bConnect = pClientSocket->Connect( m_strServerIPAddress.c_str(), m_iServerPort ); } if( ! bConnect ) { CString strTmp; strTmp.Format("Error: Failed to connect to server (%s).",m_strServerIPAddress.c_str()); AfxMessageBox(strTmp); return FALSE; } return pClientSocket; } //then I did CSocket m_pClientSocket; m_pClientSocket=new CSocket; m_pClientSocket = Connect(); //then I used the m_pClientSocket->Receive() func that worked //now I created a secondary thread using beginthreadex() //then I called the m_pClientSocket->Receive()func in the secondary thread func threadproc()in a while loop ..it seems that evrytime I call the Receive method it raises the Debug assertion failed exception ..if I ignore the error I continues to execute the receive func of CSocket but after quite some delay.. Is there ant way out of this problem... Thanx and Regards Junni Re: CSocket multithreading[urgent] Daniel Turini19-Dec-02 3:03 Daniel Turini 19-Dec-02 3:03  As Rage pointed, you should provide more complete information about your problem. Which assertion failed? This is important info. Some pseudo-code would be useful for helping you too. A common error on multithreaded CSocket code is made with CSocketServer; from MSDN: " If you want to handle this connection in a different thread, just passing the MFC object to the thread will not work correctly. To correctly set up everything for the connection to be handled in a different thread, the following steps are required: 1. Detach the socket handle from the CAsyncSocket object in the thread where the connection was accepted. 2. Pass the socket handle to the thread. 3. In the thread, attach this handle to a CAsyncSocket derived object. " I see dumb people Re: CSocket multithreading[urgent] Brian Delahunty19-Dec-02 3:53 Brian Delahunty 19-Dec-02 3:53  I vaguely remember comming across this problem before. I just opted to use socket handle as I was under presure to get the project finished on time. I never had the chance to go back and figure it out. If you figure it out I'd be grateful if you posted the answer here. Regards, Brian Dela Re: CSocket multithreading[urgent] Nish Nishant19-Dec-02 6:28 Nish Nishant 19-Dec-02 6:28  Is the secondary thread a worker thread? If so, you'll have problems as CSocket needs a message pump. Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Review by Shog9 Click here for review[NW] Re: CSocket multithreading[urgent] junni19-Dec-02 18:55 junni 19-Dec-02 18:55  yes it is a worker thread and can u provide some info about the Message Pump and how to implement that..a snippet of code would do a lot.. Thanx junni Re: CSocket multithreading[urgent] RobJones19-Dec-02 9:32 RobJones 19-Dec-02 9:32  does the error have something to do with m_hash? Rob Re: CSocket multithreading[urgent] junni19-Dec-02 18:58 junni 19-Dec-02 18:58  Nope Writing hex to a file Franz Klein19-Dec-02 2:28 Franz Klein 19-Dec-02 2:28  I am trying to write a program that writes pure hexadecimal text into a file. For example I want to write in the figure 0x00010000 into the file. However I have tried using streams but when I look at the file the contents in a hex viewer the contents are 34 38 for a 0 whereas I would like there to be 00 01. Does anybody know of a way to do it using std::streams? Re: Writing hex to a file David Chamberlain19-Dec-02 3:09 David Chamberlain 19-Dec-02 3:09  If you are writing "text" into a file, then it wouldn't matter if it was hex or not ... everything will be characters. When looked at in a hex viewer, you will be seeing characters, regardless of what they represent. If you want the resulting file to be viewed with a hex viewer and to look like hex bytes, then you will want to write the data to the file in binary. Good luck, Dave "You can say that again." -- Dept. of Redundancy Dept. Getting Access to the Desktop Wallpaper Waleed Eissa19-Dec-02 2:23 Waleed Eissa 19-Dec-02 2:23  Hi code gurus, I'm trying to find out how to retrive the desktop background (a.k.a. desktop wallpaper) to use it in my applications (just the wallpaper without the desktop icons or any other things). Also, I want to change the wallpaper bitmp (in memory by retrieving the bitmap handle or a pointer to the bitmap). For example, I want to write a screen saver that utilizes the desktop background to apply some graphics effects on the background bitmap. Also I want to use it in other applications .. I want to change the bitmap itself e.g. draw a clock on the bitmap. I don't want to load the wallpaper bitmap file, I know how to do this but I want to get the wallpaper from memory, is this possible? Thanks in advance ... (a.k.a. Wal2k) www.wal2k.com Re: Getting Access to the Desktop Wallpaper Kannan Kalyanaraman19-Dec-02 2:38 Kannan Kalyanaraman 19-Dec-02 2:38  Take a look at IActiveDesktop interface. Its got all the methods to deal with what you have mentioned like setting up the wallpaper, retrieving the bitmap etc.I'm not sure if you would be able to get a handle to the wallpaper bitmap from memory Cheers Kannan Static linked library with resources f.o.b19-Dec-02 2:20 f.o.b 19-Dec-02 2:20  Hi all, is it possible to create a string table resource within a static linked library. I use a static linked library and I want to use different string tables to translate error messages in different languages. With AfxMessageBox I create the dialog to display the error messages. If this is not possible, has anybody another idea to do that? Ciao, f.o.b Re: Static linked library with resources Pavel Klocek19-Dec-02 2:55 Pavel Klocek 19-Dec-02 2:55  Sorry, it's not. Resources are compiled by resource compiler and appended to a finished exe file. Static library is handled by C++ compiler/linker. You can prepare a resource file to be included into rc file of the application using the library using #include statement (With a risk of resource ID conflict). Pavel Sonork 100.15206 Re: Static linked library with resources Ted Ferenc19-Dec-02 4:22 Ted Ferenc 19-Dec-02 4:22  Have alook at my article, it uses resource only DLLs not static libraries http://www.codeproject.com/cpp/mult_lang_support.asp Re: Static linked library with resources Fob19-Dec-02 5:11 Fob 19-Dec-02 5:11  I solved my problem. If you want to know how to do it, check the following web side (unfortunatly in german): http://www.differentpla.net/~roger/devel/tips/vc/resources_in_libs/ Re: Static linked library with resources Fob19-Dec-02 5:22 Fob 19-Dec-02 5:22  Ups, sorry, the webside is in english ) Ciao, f.o.b dynamic forms misiek19-Dec-02 2:16 misiek 19-Dec-02 2:16  I'd like to create an application (a DialogBased or SDI) that has the main window splitted into two parts. The first part is a treeview and the second is a form that shows details of an item selected in the treeview. There is one form for every different type of an item. The problem I've come across is to how to make the second part of window dynamic? I mean how to visualize the detailed form and changing (replacing) it into another dynamically once the item in the tree view is changed? Many thanks for any hint in advance. misiek Re: dynamic forms Pavel Klocek19-Dec-02 2:43 Pavel Klocek 19-Dec-02 2:43  I suppose you are using MFC. I've solved it with a view which owns hidden modeless dialogs for each type of item. When an item in the tree is selected, the proper dialog is shown and filled. Pavel Sonork 100.15206

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