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Re: Ports <k>Andreas Hoheisel13-Aug-01 21:06 <k>Andreas Hoheisel 13-Aug-01 21:06  yust trace netstat -a Re: Ports 13-Aug-01 22:50 13-Aug-01 22:50  COM Ports or TCP ports? CreateProcess -> illegal instruction 13-Aug-01 11:00 13-Aug-01 11:00  I have an app A, which uses CreateProcess to spawn another app B. It works fine. I took the code from A and moved it to another app C. I thought app C would now launch app B. It does but as soon as B becomes alive it(B) causes an 'illegal instruction' and exits. How can it be it works with app A and not C? Could you help me find possible reasons for this behaviour. Thank You LP A CWnd in a view... Re-size... 13-Aug-01 11:00 13-Aug-01 11:00  Hi, in a simple application using Document/View Architecture: In My view I have a CWnd Item, I use it to create a very special control, it work very well. so you can see theses lines in my view definition (.h) class CBoopView : public CView { [.....] //some stuff public: CMYSpecialControl MyControl; [.....] //other stuff }; //then in the cpp file i create the control itself that way int CBoopView::OnCreate(LPCREATESTRUCT lpCreateStruct) { CRect MyRect(10,10,200,30); if (CView::OnCreate(lpCreateStruct) == -1) return -1; //for sure MyControl.Create is an override to simplify his creation MyControl.Create(MyRect,this,1); MyControl.ShowWindow(SW_SHOWNORMAL); return 0; } in the CMYSpecialControl, derived from CWnd you can find this override on the create function BOOL CGraphScroll::Create(const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) { return CWnd::Create(NULL, _T(""), WS_CHILD, rect, pParentWnd, nID, pContext); } Now the problem is: MoveWindow(...) and SetWindowPos(...) did'nt work!! My special control is a CWnd so i'm supposed to be able to replace it anywhere in the parent frame(my view) but it didn't work. I've try a lot of thing. who control the client area of my control? his parent(My View)? himself? It's hard to find the exact way you must create a child window in a view and how deal whit it.... thanks for help or anything who can help me to find the solution Remi Morin Remi.Morin@Lyrtech.com Re: A CWnd in a view... Re-size... Paolo Messina13-Aug-01 11:54 Paolo Messina 13-Aug-01 11:54  Well, a view is just like any other window, nothing special from the system's point of view. Which exactly is the problem? Can you see the child window? Maybe you need to add the style WS_CLIPCHILDREN to the view, in PreCreateWindow(). You should be able to move/resize the child window at any time (if it's been created of course). Paolo ------ "airplane is cool, but space shuttle is even better" (J. Kaczorowski) Re: A CWnd in a view... Re-size... 14-Aug-01 3:39 14-Aug-01 3:39  I can see the control at it's original position, but if I move it, it is not display anymore. In fact my special control is only able to draw himself in the first rectangle he received in the create function. example: MySpecialControl.Create(CRect(10,10,100,50),this,1); this will work very well I can see my control but when i try to move it that way: MySpecialControl.OnNewSize(this,CRect(10,35,100,50)); OnNewSize is a member function that i have create void CMySpecialControl::OnNewSize(CWnd *pParent,CRect MyRect) { //that way MoveWindow(MyRect,TRUE); //or that way (i have also try the two...) SetWindowPos(pParent, MyRect.top, MyRect.bottom, MyRect.Width(), MyRect.Height(), SWP_SHOWWINDOW) } Maybe there something I don't understand whit windows... By the way I've try this PreCreateWindow(CREATESTRUCT& cs) { // TODO: Modify the Window class or styles here by modifying // the CREATESTRUCT cs cs.style |=WS_CLIPCHILDREN ; return CView::PreCreateWindow(cs); } nothing... do I have to call the OnSize(UINT nType, int cx, int cy) or something like that? thank you Remi Morin Remi.Morin@Lyrtech.com Re: A CWnd in a view... Re-size... 14-Aug-01 4:16 14-Aug-01 4:16  ...now it work... i don't know why... and I don't know why it was'nt working... Remi Morin Remi.Morin@Lyrtech.com HTTP Connection question... Cabadam13-Aug-01 10:31 Cabadam 13-Aug-01 10:31  I am using CInternetSession, CHttpConnection, and CHttpFile to get a file from an HTTP server. I am having a problem though determining if the initial connection succeeded or not. If the server is 'off' then the code seems to execute despite my 'ifs' and produces an exception. If I put the statement throwing the exception into a try-catch, it isn't caught, and crashes the program anyway. CInternetSession net; CHttpConnection* http = NULL; CHttpFile* file = NULL; http = net.GetHttpConnection("cabadam.homeip.net"); if (http == NULL) { status += "Failed to connect to server!\r\n"; dlg->edit_status.SetWindowText(status); dlg->GetDlgItem(IDC_BUTTON_CONTINUE)->EnableWindow(1); return 1; } file = http->OpenRequest(CHttpConnection::HTTP_VERB_GET,"version.txt"); try { file->SendRequest(); //THIS STATEMENT crashes the program even though it is inside a try catch } catch (CInternetException pEx) { status += "Failed to connect to server!\r\n"; dlg->edit_status.SetWindowText(status); dlg->GetDlgItem(IDC_BUTTON_CONTINUE)->EnableWindow(1); return 1; } I have tried several different things, but I haven't been able to figure out how to determine if it was unable to connect with the server. Am I doing something wrong? Or is there an easier way to do this? Thanks! Adam cabadam@houston.rr.com Re: HTTP Connection question... 14-Aug-01 4:46 14-Aug-01 4:46  try this: try { http = net.GetHttpConnection("cabadam.homeip.net"); } catch(CInternetException *ex) { ...failed... ex->Delete(); } hope this helps Re: HTTP Connection question... Cabadam15-Aug-01 4:47 Cabadam 15-Aug-01 4:47  Oh duh!! On the catch, I had the pEx as CInternetException, not CInternetException* That did it... thx Adam cabadam@houston.rr.com Classy question otvac13-Aug-01 9:47 otvac 13-Aug-01 9:47  When I fail to define a New Class correctly, how do I remove the New Clas from the project, si I can redifine it? Richard Re: Classy question Chris Losinger13-Aug-01 10:02 Chris Losinger 13-Aug-01 10:02  delete the files from the file view (highlight, press delete) delete the actual files (from Explorer) delete your .CLW file (from Explorer). this will be regenerated the next time you launch classwiz -c ------------------------------ Smaller Animals Software, Inc. http://www.smalleranimals.com What to distribute with the final program build? 13-Aug-01 9:00 13-Aug-01 9:00  I'm done building my program, but I was just wondering what DLL to include with it. Some of my friend who doesn't own VC++ have trouble running it. Please help... Re: What to distribute with the final program build? Gregg Carlstrom13-Aug-01 9:06 Gregg Carlstrom 13-Aug-01 9:06  Use the Dependency Walker program that comes with MSVC++. It'll show you all the DLLs required to run your application; it's generally a good idea to package those into your installer, and have it install the DLLs if the ones present on the user's system are older. You don't need to package them all, mind you -- you probably won't need to add Kernel32 into your installer, for example -- but MFC/OLE/COM DLLs should definitely be packaged. Re: What to distribute with the final program build? Kuniva13-Aug-01 20:45 Kuniva 13-Aug-01 20:45  just a tip: if its an MFC program goto Project>Options and on the combobox change "Debug" to "Release", then choose "Link MFC in static library" instead of "Link MFC dynamically" then click ok. goto Build(or run or comile whatever it says) and click "batch build" then select "Release" and click build. it will now build ur project in a folder called "Release" in ur main project folder, so in it you will find an executable which is linked statically and should contain everything you need. Kuniva Want, take, have. (oh btw, best way of learning some language is by looking at examples, start large!) :p Error in GetFieldValue() Tomas13-Aug-01 8:17 Tomas 13-Aug-01 8:17  Hello. This portion of code works perfect in an aplication that conect to Access 2000 with a DSN ODBC. CRecordset rs; rs.Open(CRecordset::forwardOnly,"SELECT COUNT(*) FROM mytable",CRecordset::readOnly); short nField=0; CString str; rs.GetFieldValue(nField,str); long NumRecords = atol(LPCSTR(str)); Now I am porting the aplication to works with SQL Server 2000 and this portion of code give me the error: "State:S1002,Native ,Origin:[Microsoft][ODBC SQL Server Driver] Invalid column number". In MSDN I have found "GetFieldValue calls the ODBC API function SQLGetData. If your driver outputs the value SQL_NO_TOTAL for the actual length of the field value, GetFieldValue throws an exception. For more information about SQLGetData, see the ODBC SDK Programmer's Reference" I don't know if this is the problem. Anybody can tell me how can I solve this problem?. Thanks in advance. Tomás. Re: Error in GetFieldValue() Bret Faller13-Aug-01 8:33 Bret Faller 13-Aug-01 8:33  SQL automatically makes column 0 the bookmark column (which is useless unless you're using bookmarks). Start your column numbers at 1. Bret Faller Odyssey Computing, Inc. Re: Error in GetFieldValue() Tomas13-Aug-01 8:54 Tomas 13-Aug-01 8:54  Thank you Bret. This is not the solution. I start with 1 and the error is "The index is not valid or the field name is incorrect". I think the problem is another but I have no idea. Tomás Re: Error in GetFieldValue() Bret Faller13-Aug-01 9:02 Bret Faller 13-Aug-01 9:02  Are you using a snapshot or dynaset recordset? Bret Faller Odyssey Computing, Inc. Re: Error in GetFieldValue() Tomas13-Aug-01 9:20 Tomas 13-Aug-01 9:20  I am using... In the constructor: m_nDefaultType = dynaset; And to open: rs.Open(CRecordset::forwardOnly,_T("SELECT COUNT(*) FROM mytable"),CRecordset::readOnly); Re: Error in GetFieldValue() Bret Faller13-Aug-01 11:04 Bret Faller 13-Aug-01 11:04  Actually, the anonymous guy is correct. You should use GetRecordCount(). And I believe the reason the other doesn't work is because I think the GetFieldValue gets a column value rather than a returned recordset value. So just do a plain open with a NULL query in order to get the whole recordset then do a GetRecordCount. Bret Faller Odyssey Computing, Inc. Re: Error in GetFieldValue() 13-Aug-01 9:56 13-Aug-01 9:56  Seems like you just want the number of records in the database, so why don't you use the CRecordset::GetRecordCount() function. Re: Error in GetFieldValue() Tomas13-Aug-01 12:01 Tomas 13-Aug-01 12:01  Yes this is a solution, but too slowly because you need to check all the recordset to know the number of records. MoveFirst(); DoWhile(IsBof()) { MoveNext(); count++; } Is more eficient to do a SELECT COUNT(*) rather a DoWhile(). Tomás Re: Error in GetFieldValue() 14-Aug-01 12:27 14-Aug-01 12:27  No. You don't check it like this. For example: let's say you have a class CMyRecordset derived from CRecordset, and you use the default SQL, once you open the your RS class all you have to do is this.. CMyRecordset rs(db); long lNumOfRecords; rs.Open(); // if opens without any problem.. // this should give you the number of records you are looking for.. lNumOfRecords = rs.GetRecordCount(); What does this function do? Bret Faller13-Aug-01 8:13 Bret Faller 13-Aug-01 8:13  Good day, Does anyone know what exactly GetSuperWndProc() does? I keep getting this as an unresolved external in my embeddedVC program even though I never call it. If I override it it will compile fine but crashes on execution. I was wondering if anyone knows what its supposed to do so that I can implement it. Thanks. Bret Faller Odyssey Computing, Inc.

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