C / C++ / MFC

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N-ary Tree sniper4-Jul-01 8:45 sniper 4-Jul-01 8:45  Is there any site that has VC++ source code for N-ary tree? Or is there such class provided by MS Visual studio? Re: N-ary Tree Ghazi H. Wadi4-Jul-01 11:38 Ghazi H. Wadi 4-Jul-01 11:38  Try Data Structures and Algorithms with Object-Oriented Design Patterns in C++ By Dr. Bruno R. Preiss check out the c++ source code of the book Cheers Alfadhly It is Illogical to define an inventor by his invention Re: N-ary Tree Nick Blumhardt4-Jul-01 21:25 Nick Blumhardt 4-Jul-01 21:25  That's a clever aphorism in your sig... Just out of interest, where is it from? Re: N-ary Tree Ghazi H. Wadi5-Jul-01 7:56 Ghazi H. Wadi 5-Jul-01 7:56  Thanks Nick, It is just a disclaimer so my answers here don't get mixed up with my work , ideological background or my hair cut preferences Cheers It is Illogical to define an inventor by his invention Using of classes from LIB ... Hadi Rezaee4-Jul-01 8:00 Hadi Rezaee 4-Jul-01 8:00  Hi all, Please explain to me, how can i add LIB to my project ? and how can i use of it ? Because, first i copy the LIB files to my project directory, then in Project Setting i wrote the lib file in Link section in setting ... But, i want to add the classes from LIB file to my project which i'll can use of classes in my project ... Please help me ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Using of classes from LIB ... Michael P Butler4-Jul-01 9:11 Michael P Butler 4-Jul-01 9:11  You'll need to include the LIB's .h files into your source code then you'll be able to inherit the classes into your own classes. Michael Re: Using of classes from LIB ... Hadi Rezaee4-Jul-01 11:11 Hadi Rezaee 4-Jul-01 11:11  Thanks alot, My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Using of classes from LIB ... l a u r e n4-Jul-01 11:07 l a u r e n 4-Jul-01 11:07  hey hadi are you talking about the crystal reports thing again? you must link in crpe32m.lib (i think thats what is called) in your project settings as well as include the .h file in your stdafx.h file i emailed you some sample code earlier today and the files you need to include ... did you get them? --- "every year we invent better idiot proof systems and every year they invent better idiots" Re: Using of classes from LIB ... Hadi Rezaee4-Jul-01 11:16 Hadi Rezaee 4-Jul-01 11:16  Hi, No lauren ... I had stupid question, maybe ... --- About Crystal Report, i got your example, it was very nice ... but my Crystal Report version is 7.0, and you sent to me Crystal Reports header files for version 8.0 ... Can you tell me, how can i download the header files(peplus.h and peplus.cpp) for Crystal Report 7.0 ??? Thanks again, My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Using of classes from LIB ... l a u r e n5-Jul-01 0:28 l a u r e n 5-Jul-01 0:28  go to www.crystaldecisions.com and search for files called peplus.* i found a version for cr vr 6 and cr vr 8 but not 7 maybe ask the tech support people for what version you can use --- "every year we invent better idiot proof systems and every year they invent better idiots" Help with Hooks or window messages PLEASE! Alex Waag4-Jul-01 7:34 Alex Waag 4-Jul-01 7:34  Alright I'm trying to intercept the Messages sent to a paticular window like Spy++ that comes with MSVS. I have a DLL file that (I think) starts and stops a global hook. When I start the test program (or step debug the DLL) the messages stop getting sent to the window that i'm blocking, but aren't getting sent to my callback function. I would greatly appericate it if anyone could enlighten me with some help. I can give more info or code if nessacary. Thanks Alex Waag alexxwaag@hotmail.com My Software nerver has bugs, It just develops random features. Re: Help with Hooks or window messages PLEASE! Oscar Londono4-Jul-01 11:17 Oscar Londono 4-Jul-01 11:17  Take a look to samples on MSDN. Try this "DLL: Windows Message Spy Sample" or "Spy: Monitoring Messages with SPY". Good luck. Oscar L. Get a pointer from another function 4-Jul-01 6:37 4-Jul-01 6:37  I create a dynamic array in a function: int* pNumber = new int [SomeProgramVariable]; for (inti=0;i{ *(pNumber+i) = i; } ... ... delete [] pNumber; I want to return the pNumber, so that another function can use this pointer.....for example, I can call this function liked...... GetPointer(pNumber)....and when the function calls this, it can get pNumber from the parameter......... But I cannot get the information i want..... how to do it??? Re: Get a pointer from another function Paolo Messina4-Jul-01 6:57 Paolo Messina 4-Jul-01 6:57  First of all, do not delete it! However, you have to store the pointer somewhere, in a global variable or, better, in a member variable if you're using classes. Then provide whichever method you prefer to access the pointer. If it's global or public memeber you don't need an access function, otherwise provide one. Hope this helps, Paolo. Re: Get a pointer from another function Oscar Londono4-Jul-01 7:07 Oscar Londono 4-Jul-01 7:07  You should no delete it! If you need it as return value, declare: int *GetPointer() { int *pNumber = new int [SomeProgramVariable]; ... return pNumber; } If you need it as parameter, pointer to pointer is necesary because you are allocate memory on function body: void GetPointer(int **pNumber) { *pNumber = new int [SomeProgramVariable]; ... } Re: Get a pointer from another function Mike Burston4-Jul-01 12:41 Mike Burston 4-Jul-01 12:41  >>void GetPointer(int **pNumber) >>{ >> *pNumber = new int [SomeProgramVariable]; >> ... >>} "pointer to pointer" is just plain silly - in C++ it should almost always be reference to pointer : void GetPointer(int *&pNumber) { pNumber = new int [SomeProgramVariable]; ... } With "pointer to pointer" the following code compiles but crashes GetPointer(NULL); With "reference to pointer" it would never compile. Re: Get a pointer from another function Oscar Londono4-Jul-01 13:56 Oscar Londono 4-Jul-01 13:56  Ok. That's good. It's an alternate form. No necesary it's plain silly! Remember, good programers don't trust only on compiler. You should verify every part of code. And, if you look COM interfaces, 'pointer to pointer' is essential. Oscar L. WTL CIPAddressCtrl 4-Jul-01 6:08 4-Jul-01 6:08  This may be a dumb question, but I'm having trouble getting the CIPAddressCtrl in my application. When I place a IP Address Control on the dialog in the resource editor I can't start my app. The Run function fails to create my main Dialog when the app starts. If I try and manually create a CIPAssressCtrl in my OnInitDialog the create method return 0 every time. Anybody got some examples that I could look at? Timothy Bish Re: WTL CIPAddressCtrl 4-Jul-01 6:33 4-Jul-01 6:33  the appwizard generated _tWinMain() looks like this INITCOMMONCONTROLSEX iccx; iccx.dwSize = sizeof(iccx); iccx.dwICC = ICC_COOL_CLASSES | ICC_BAR_CLASSES; BOOL bRet = ::InitCommonControlsEx(&iccx); you need to add ICC_INTERNET_CLASSES to the dwICC member. RegSaveKey and RegRestoreKey Advanced Privilege problems 4-Jul-01 5:43 4-Jul-01 5:43  I have created a Registry Backup program that restores and saves certain registry files. However, it only works fine when logged on as an administrator. When logged on with less rights I have the following error: 1314 : A required privilege is not held by the client. I know from previous investigations that privileges need to be set which I have done as follows:- BOOL CRegistryBackupDlg::EnableBackupPrivilege() { HANDLE hToken = NULL; if(!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) return FALSE; TOKEN_PRIVILEGES tkp; LookupPrivilegeValue(NULL, SE_BACKUP_NAME, &tkp.Privileges[0].Luid); tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; BOOL bOk = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, NULL, 0); CloseHandle(hToken); return bOk; } and BOOL CRegistryBackupDlg::EnableRestorePrivilege() { HANDLE hToken = NULL; if(!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) return FALSE; TOKEN_PRIVILEGES tkp; LookupPrivilegeValue(NULL, SE_RESTORE_NAME, &tkp.Privileges[0].Luid); tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; BOOL bOk = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, NULL, 0); CloseHandle(hToken); return bOk; } These usually allow to perform the functions. However I have pinpointed my problems down to RegSaveKey and RegRestoreKey not having sufficient privileges when not logged on as administrator. My two regsitry calls look like this :- lResult = RegSaveKey(hKey, m_current_path , NULL); or lResult = RegRestoreKey(hKey, m_current_path, NULL); Like I said it usually works when logged on as administrator so I know that the majority of my code works it just a slight tweak of the privileges that is required but I really don't what is needed. Can you help? Thanks in advance. Re: RegSaveKey and RegRestoreKey Advanced Privilege problems Michael Dunn4-Jul-01 7:18 Michael Dunn 4-Jul-01 7:18  The RegSaveKey() and RegRestoreKey() docs say you need the SE_RESTORE_NAME priv, not SE_BACKUP_NAME. Try changing that. --Mike-- http://home.inreach.com/mdunn/ "Holding the away team at bay with a non-functioning phaser was an act of unmitigated gall. I admire gall."   -- Lt. Cmdr. Worf Re: RegSaveKey and RegRestoreKey Advanced Privilege problems 5-Jul-01 0:01 5-Jul-01 0:01  I have already set these privileges it appears to be more involved than that. Where do I start? MolleX4-Jul-01 5:33 MolleX 4-Jul-01 5:33  I need to make my own control that should be a rather complicated list box. But where do I start? Is there any good tutorials for this on the net or books? Should I inherit from CWnd or CListCtrl? Stuff like that, that I need answers to. Cheers Re: Where do I start? 4-Jul-01 5:45 4-Jul-01 5:45  Here is a good place to start http://www.codeproject.com/combobox/ Static Text and CStatic 4-Jul-01 5:08 4-Jul-01 5:08  Hi, I have a dialog with a static text control. I want to change it's caption at run time. Despite it having an ID in the .rc file (IDC_STATIC), it doesn't come up in classwizard so i can't map it to a CStatic object and thus use the inherited CWnd::SetWindowText member function to update it's text. I tried manually adding the mapping with : CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CMonemupdDlg) DDX_Control(pDX, IDCLOSE, m_Close); DDX_Control(pDX, IDC_STATIC, m_Static); //}}AFX_DATA_MAP and defining CStatic m_Static in the header file, in the same place as the ClassWizard created definition for IDCLOSE/m_Close. But although this compiles, I get a debug assertation failure in dlgdata.cpp at line 37. What am I doing wrong? I know that I could just use CStatic::Create to create the static text control but i'd far rather have the resource managed in the dialog editor. Thanks for your help Jon

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