C / C++ / MFC

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Re: Profiling with Visual C++net el667-Nov-02 4:05 el66 7-Nov-02 4:05  Thanks Nick for the quick response! It's nice to see some MSFT people looking at forums. I am also sad to find out about the missing profiler. Despite the fact that the Visual C++6 profiler was not too great, it was nevertheless usefull to quickly find out bottlenecks. I have uploaded the Compuware profiler community edition. I hope this will do the trick. Note that I am working on my own tool to post-process computational fluid dynamics results (10+ millions triangles on cut surface displayed with OpenGL). Optimizing is therefore very important. I sincerely hope that some kind of profiler will be added later on to the studio tools. I would also add to the list of features: openMP for C++ ... which is much easier to use for parallel processing than the threads. I know that Intel C++ has it. Is this compiler compatible with the MFC libraries and visual .net environment? Thanks Eric CString and console app. Nick Parker6-Nov-02 11:49 Nick Parker 6-Nov-02 11:49  I get linker errors when I try to do this, do I have to use a #pragma or something? #include <iostream.h> #include <afx.h> int main() { CString c; return 0; } Error: --------------------Configuration: test - Win32 Debug-------------------- Linking... nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex Debug/test.exe : fatal error LNK1120: 2 unresolved externals Error executing link.exe. test.exe - 3 error(s), 0 warning(s) Nick Parker May your glass be ever full. May the roof over your head be always strong. And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing Re: CString and console app. Boogie6-Nov-02 12:08 Boogie 6-Nov-02 12:08  If you are using MS Visual Studio, go change your project setting to "Use MFC in a Shared DLL." Re: CString and console app. Nick Parker6-Nov-02 12:14 Nick Parker 6-Nov-02 12:14  Boogie wrote: If you are using MS Visual Studio, go change your project setting to "Use MFC in a Shared DLL." Ah, that works fine, but is there a way to do this directly in code alone so the setting is still listed as "Not Using MFC"? Thanks for the response by the way. Nick Parker May your glass be ever full. May the roof over your head be always strong. And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing Re: CString and console app. Boogie6-Nov-02 12:17 Boogie 6-Nov-02 12:17  I am not sure about that. CString is a MFC class. That's the reason I ask you to change the project setting. Your other option is to use char type. Maybe someone else can help you. Re: CString and console app. Nick Parker6-Nov-02 12:32 Nick Parker 6-Nov-02 12:32  Boogie wrote: Your other option is to use char type. I know I can use other data types to do this, however I wanted to do this specifically with a CString. Thanks for the input. Nick Parker May your glass be ever full. May the roof over your head be always strong. And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing Re: CString and console app. James Spibey7-Nov-02 0:27 James Spibey 7-Nov-02 0:27  If you want to use CString but not MFC, I use the excellent CStdString[^] class which is an exact clone of CString but using stl. Cheers James Re: CString and console app. Nick Parker7-Nov-02 1:02 Nick Parker 7-Nov-02 1:02  James Spibey wrote: which is an exact clone of CString but using stl. Thanks James, I will take a look at it today. Nick Parker May your glass be ever full. May the roof over your head be always strong. And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing skip droping the combobox jimNLX6-Nov-02 11:38 jimNLX 6-Nov-02 11:38  I want to check for a certain condition when a user selects to drop down a box. If that condition is not met I want to display an error message and then NOT display the drop down. Does anybody have any ideas on how to do this? I have tried everything I can think of. I have the error message and all of that but after the user selects ok on the message the box drops down with nothing in it. Anybody? Re: skip droping the combobox alex.barylski6-Nov-02 11:56 alex.barylski 6-Nov-02 11:56  Check out ON_CBN_DROPDOWN "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: skip droping the combobox Anonymous7-Nov-02 3:06 Anonymous 7-Nov-02 3:06  I've added the CBN_DROPDOWN, but I don't know how to say "quit". Re: skip droping the combobox alex.barylski7-Nov-02 9:07 alex.barylski 7-Nov-02 9:07  I'm not certain without trying, but I would think it would work something like this... case CBN_DROPDOWN: if(!ShowTheDropList) return; "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr help...... MFC is the Best6-Nov-02 11:27 MFC is the Best 6-Nov-02 11:27  hello, does the possibility exist to convert hexadecimal in integer? thanks, mfc Re: help...... Christian Graus6-Nov-02 11:50 Christian Graus 6-Nov-02 11:50  Yes. In what context ? You can do this: int n = 0x0BADF00D; you can also use iostreams to display a number of any format as any other, my ostringstream article shows how. Christian No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002 Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002 During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002 Re: help...... MFC is the Best7-Nov-02 5:28 MFC is the Best 7-Nov-02 5:28  thank you for your reply! i have hexadecimals in a string and i need them as integer numbers. how can i get it? thanks, mfc Re: help...... Christian Graus7-Nov-02 10:06 Christian Graus 7-Nov-02 10:06  sscanf[^] appears to be what you're looking for. Christian No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002 Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002 During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002 Re: help...... MFC is the Best9-Nov-02 5:33 MFC is the Best 9-Nov-02 5:33  sorry i forgot: thank you very much.....great... Foward Declare bhutt6-Nov-02 11:05 bhutt 6-Nov-02 11:05  Discription: MFC application using Foward Declare. What the program is Suppose to do: Pressing the left mouse button calls m_CGoHereFirst.Funct1(); located in the class CGoHereFirst(). It Prints: "1st: Var = 5", which works fine. It then calls m_CGoHereSecond->Funct2(); located in CGoHereSecond(). It is suppose to print "2nd: Var = 5", however I get the Error message; "This program has performed an illegal operation and will be shut down" Why is the second print message causing an Error? How do I fix the problem? Important header and cpp functions listed below: HEADER FILE INFO: CGoHereFirst.h: class CGoHereSecond; // Part of 2nd Foward Declare class CGoHereFirst : public CWnd { // Implementation public: CGoHereSecond *m_CGoHereSecond; // Part of 2nd Foward Declare int Var; void Funct1(); virtual ~CGoHereFirst(); }; CGoHereSecond.h: Forward Declare class CGoHereFirst; // Part of 1st Foward Declare class CGoHereSecond : public CWnd { // Implementation public: CGoHereFirst *m_CGoHereFirst; // Part of 1st Foward Declare void Funct2(); virtual ~CGoHereFirst(); }; Foward_Declare.h: // Implementation public: CGoHereFirst m_CGoHereFirst; MEMBER FUNCTIONS: void CForward_DeclareView::OnLButtonDown(UINT nFlags, CPoint point) { // TODO: Add your message handler code here and/or call default m_CGoHereFirst.Funct1(); CView::OnLButtonDown(nFlags, point); } #include "GoHereSecond.h" // Part of 2nd Foward Declare void CGoHereFirst::Funct1() { Var = 5; CString a; a.Format("1st: Var = %d", Var); AfxMessageBox(a); m_CGoHereSecond->Funct2(); } #include "GoHereFirst.h" // Part of 1st Foward Declare void CGoHereSecond::Funct2() { CString b; b.Format("2nd: Var = %d", m_CGoHereFirst->Var); AfxMessageBox(b); } Strange exception behaviour Boris Russel6-Nov-02 10:34 Boris Russel 6-Nov-02 10:34  Hey all, I have a strange problem with an exception being thrown and not caught properly. The exception is of the CDBException type and the code looks like the snippet given below. If I give an erroneous sql statement, an exception is thrown and caught, but when I leave the END_CATCH (or END_CATCH_ALL for that matter), the program crashes. This only occurs in release mode - debug mode is trapping and continuing fine. Sounds like I'm running rampage in my mem region, but I'm fairly sure I'm not...Any help on this will be mighty appriciated. CRecordset* pRecordset = NULL; TRY { BOOL bIsRecordPresent = FALSE; //make the recordset pRecordset = new CRecordset( &m_Database ); //open it if (pRecordset->Open(CRecordset::snapshot, szSQLIsPresent, CRecordset::readOnly)) { ... } } CATCH(CDBException, eDB) { char bufErr[512]; eDB->GetErrorMessage(bufErr, 512, NULL); eDB->Delete(); //error reporting } CATCH(CMemoryException , e) { char bufErr[512]; e->GetErrorMessage(bufErr, 512, NULL); e->Delete(); //error reporting } END_CATCH Best regards /Boris Re: Strange exception behaviour Boris Russel6-Nov-02 10:39 Boris Russel 6-Nov-02 10:39  Found it - The exception clean up of CDBException 'eDB->Delete();' throws a new exception. Have no idea why /Boris is there any api that tell the name of currently imran_rafique6-Nov-02 10:18 imran_rafique 6-Nov-02 10:18  is there any api that tell the name of currently login user ? is there any api that tell the status of the os? i mean to say that wheather the system is in logof aur login state? r00d0034@yahoo.com Re: is there any api that tell the name of currently Gary Kirkham6-Nov-02 10:38 Gary Kirkham 6-Nov-02 10:38  GetUserName will give you the name of the user that is currently logged in Gary Kirkham A working Program is one that has only unobserved bugs how to process active window hwnd ? imran_rafique6-Nov-02 10:04 imran_rafique 6-Nov-02 10:04  how to start a process ? and get its id ? how to process active window hwnd ? r00d0034@yahoo.com Re: how to process active window hwnd ? Christian Graus6-Nov-02 10:50 Christian Graus 6-Nov-02 10:50  What on earth do you mean by imran_rafique wrote: how to process active window hwnd ? How do you WANT to process it ? Christian No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002 Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002 During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002 CPropertyPage doesn't get the focus! Daniel Strigl6-Nov-02 10:04 Daniel Strigl 6-Nov-02 10:04  I have a property sheet (CPropertySheet) with 2 property pages (CPropertyPage). So, the problem is that when I click on the second page (change to the second page) this page will not get the focus! I have to click on any control on this page (or with the tab key) to get the focus! How can I fix that? (I am working with Embedded Visual C++, PocketPC / PocketPC 2002, MFC) Daniel --------------------------- Never change a running system!

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