C / C++ / MFC

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Writing a Client/Server in Visual C++ 22-Oct-01 9:10 22-Oct-01 9:10  Hello, As a part of the college lab work I have to write a client and a server using MFC. The prof explained the whole stuff briefly, and I recall him having talked about threads etc. The client/server have to use the UDP protocol and be able to transfer files (even big ones). Can someone tell me how to do this? or where I can find relevant resources? I dont know how to analyse the problem. Thanks, Mike Re: Writing a Client/Server in Visual C++ Matt Newman22-Oct-01 13:21 Matt Newman 22-Oct-01 13:21  http://www.codeproject.com/internet/multicastsocket.asp#xx4106xx Gives you a start on multicasting if that is the kind of thing you need. Also check out the Internet & Network section. -Matt Newman -Matt Newman Hiding the main frame in mdi jangel22-Oct-01 8:51 jangel 22-Oct-01 8:51  Hi, does anybody know how can I hide the main frame in a MDI app?? Tnx Re: Hiding the main frame in mdi Tomasz Sowinski22-Oct-01 8:55 Tomasz Sowinski 22-Oct-01 8:55  ShowWindow(SW_HIDE) doesn't work? Tomasz Sowinski -- http://www.shooltz.com Re: Hiding the main frame in mdi jangel22-Oct-01 10:04 jangel 22-Oct-01 10:04  Nop Re: Hiding the main frame in mdi Tomasz Sowinski22-Oct-01 10:24 Tomasz Sowinski 22-Oct-01 10:24  It works for me. Are you sure you're calling ShowWindow(SW_HIDE) for main frame? Tomasz Sowinski -- http://www.shooltz.com Re: Hiding the main frame in mdi jangel22-Oct-01 12:37 jangel 22-Oct-01 12:37  Sorry I think I made the wrong answer. It's there any way to hide the main frame, and show the child frame at the same time? Re: Hiding the main frame in mdi Christian Graus22-Oct-01 18:36 Christian Graus 22-Oct-01 18:36  Because the child frame is a *child* of the main window, I believe hiding the main window will hide the child. However, if you resize the main window to 1x1 pixel and put it at -100, -100, it's very rare for the multimonitor setup to exist that will see your one pixel window. Just store the CRect the window takes up first so you can restore it. Christian As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet. Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery. ADO question ... Hadi Rezaee22-Oct-01 8:25 Hadi Rezaee 22-Oct-01 8:25  I'm writing Client & Server program, i'm using ADO ... If i wanna write program on the Client computer, i must add this line to my source code ? pRecordset->CursorLocation = adUseClient; Is that necessery ? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: ADO question ... Carlos Antollini22-Oct-01 8:47 Carlos Antollini 22-Oct-01 8:47  Yes, if you are using a access Database, but if you are using a SQL Server I saw that the bookmarks and absolute positions don't works if you dont use that parameter. Cheers!!!! Carlos Antollini. Re: ADO question ... Hadi Rezaee22-Oct-01 9:06 Hadi Rezaee 22-Oct-01 9:06  I got your mean about Access database ... But i didn't understand your mean about SQL Server database, you mean if i uss SQL Server database, If i use CursorLocation or i don't use CursorLocation in my program, result is equal ? Is it right ? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie m_pCtrlSite in Derived CButton object Derek Lakin22-Oct-01 7:03 Derek Lakin 22-Oct-01 7:03  I have a pointer to a CButton-derived object that is assigned using GetDlgItem (though I have tried using FromHandle and FromHandlePermanent). Any ideas why sometimes (in a release build) the m_pCtrlSite member of CCmdTarget gets set to 1? I think it should be NULL unless it is something to do with an ActiveX control, which it isn't. This is causing my subsequent call to EnableWindow to fail because inside the CWnd calls it checks m_pCtrlSite for NULL, which it isn't if it's 1. But trying to dereference it (as in the CWnd) casues an obvious access violation. Derek Lakin. Salamander Software Ltd. Serialization of embedded CArray objects ASBR22-Oct-01 6:35 ASBR 22-Oct-01 6:35  Hi, Could somebody solve the following serialization problem (sorry, the experts out there). I have a pointer to an object in CMyDoc class, such as class CMyDoc : public CDocument { protected: CModel* pModel; // ... other members go here }; where CModel is a CObject derived class, defined as class CModel : public CObject { CArray <csomeobj, csomeobj&=""> obj; // other memebers ... }; The CSomeObj is Cobject derived, and has one or more CString members, mixed with other types. we call the Serialize override of obj from CModel::Serialize( CArchive& ar) in the statement obj.Serialize(ar); It goes fine for storing all the objects, but when loading them back, my program gets an error because it reads back a wrong CString memebers of the 'obj' object, but Other data of different type ar Ok. I do not unerstand why ? any help, please ? Re: Serialization of embedded CArray objects Tomasz Sowinski22-Oct-01 8:54 Tomasz Sowinski 22-Oct-01 8:54  Use &lt; and &gt; instead of < and >. And post the serialization code from CYourDoc and CModel. Tomasz Sowinski -- http://www.shooltz.com Displaying a tooltip in a CScrollView Franz Klein22-Oct-01 5:26 Franz Klein 22-Oct-01 5:26  I am able to display a tooltip in a CScrollView initailly but when I scroll down or to the right, then the tooltips don't want to appear. Anybody had this problem before? Thank you Franz Klein Re: Displaying a tooltip in a CScrollView Tomasz Sowinski22-Oct-01 8:17 Tomasz Sowinski 22-Oct-01 8:17  Do you call OnPrepareDC before DPtoLP conversion during hit-testing? Tomasz Sowinski -- http://www.shooltz.com using _ecvt or f_fcvt??? Gérald Mercet22-Oct-01 4:17 Gérald Mercet 22-Oct-01 4:17  In my application i want to return a value into an edit box. i know that i have to change the value in a string type value. So, as the value i want to return is a double i would like to use the function _ecvt. But i have a pb with it, because if i want to return for example a number as 3.14, there is no pb, but if the value is 0.0314, the first 0 after "." is not taken. In my code i do that: int decimal,sign; . . . m_dlgPrice=0.0314; strParam=_fcvt(m_dlgPrice,4,&decimal,&sign); CString strInt=strParam.Left(decimal); CString strDecimal =strParam.Mid(decimal); strParamFin.Format("%s.%s",strInt,strDecimal); CEdit* Edit=(CEdit*)GetDlgItem(IDC_PRICE); Edit->SetWindowText(strParamFin); and in the edit box i could only see .314, so where is the pb? thanks in advance for your help. gerald Re: using _ecvt or f_fcvt??? Bernhard22-Oct-01 4:58 Bernhard 22-Oct-01 4:58  i actually don't know why you do it THIS way.. i would rather use strParamFin.Format ("%f", m_dlgPrice); this works great for me..if the output isn't what you're looking for (use other style specifications like %g ) hope this helps bernahrd "Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason." Re: using _ecvt or f_fcvt??? Gérald Mercet22-Oct-01 6:00 Gérald Mercet 22-Oct-01 6:00  you were right, thanks for your help gerald Find File including Subdirectories.. Bernhard22-Oct-01 4:07 Bernhard 22-Oct-01 4:07  ... i have got a directory with many subdirs.. in most of them there is a foo.cfg file.. i would like to open now all these files.. is there any chance for me and not iterating through all the dir's with find_file??? thanks in advance bernhard "Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason." Re: Find File including Subdirectories.. Carlos Antollini22-Oct-01 4:17 Carlos Antollini 22-Oct-01 4:17  You have the attribute that inform you if the file is a directory. I don't know if you are working with MFC, but when you find a directory and if it is not dot, you need to use the find file into the directory, each time that you find a directory you need to find into it... Good luck...;) Carlos Antollini. Re: Find File including Subdirectories.. Ray Kinsella22-Oct-01 4:17 Ray Kinsella 22-Oct-01 4:17  write a recursive function using CFindFile FindFile(String strDirectory) { OPEN FILE_FIND(strDirectory) FOR EACH file IN FILE_FIND IF IS_DIRECTORY(file) THEN FindFile(file) ELSE // do something else END IF NEXT file CLOSE FILE_FIND } Regards Ray "Je Suis Mort De Rire" THANKS Bernhard22-Oct-01 4:53 Bernhard 22-Oct-01 4:53  thanks for the prompt answer... bernhard "Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason." CListCtrl different text colors for one item stephan22-Oct-01 3:40 stephan 22-Oct-01 3:40  Can anybody help me? I want to set 2 different text colors in one item. Is this possible and how can i do that? Re: CListCtrl different text colors for one item Michael Dunn22-Oct-01 4:51 Michael Dunn 22-Oct-01 4:51  You'll need to draw the item yourself, changing the text color with SetTextColor() before you draw the word you want colored differently. --Mike-- http://home.inreach.com/mdunn/ "....." -- Silent Bob your with and

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