Deleting a CLI array

Visual C++ Language

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  - 1
    - How to disable hot tracking on a CButton control? As far as I know, 'plain' CButton's don't have hot tracking. So I'll ask again: where is the hot-tracking behavior coming from What does the debugger say about WM_MOUSEMOVE and related mouse messages Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 2
    - ATL IDispEventSimpleImpl reverse order bug still present in VC++ 2005 ???? I fixed the link to the connect site. Try again. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 3
    - Link error : debugging information corrupt Hi I have a VC6 application which uses gdiplus When i build the pjt the following link error occurs gdiplus.lib(imagingguds.obj) : fatal error LNK1103: debugging information corrupt I have the latest platform sdk installed and i was able to use the gdiplus in my other vc6 projects Plz help Regards Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 4
    - error LNK2019: What .lib do i need to link? (C) hmm just read the docs a bit more and i found something that says: Code Snippet To be able to link REX.C with a Windows application you must add ”VERSION.LIB” to your list of linker input files. i did that i put VERSION.LIB in the options section but it didn't make a difference. along with having the .dll in my working directory, am i supposed to have it in my system32 directory as well Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 5
    - mfcs80u.lib(dllmodul.obj) : error LNK2005: _DllMain@12 I said what you have to do, get rid of the function DllMain. The MFC uses DllMain to do initialisation of the MFC for you to use so you need to make sure you don't use MFC. This happens when you create an MFC dll. If that is what you meant to do then you should remember that you can't use the DllMain entry point function since the MFC uses it, but you use other things to do the initialisation. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 6
    - VS2005 / corrupt solution file / References to non existing projects Hi, I have a problem with a number of VS2005 solution files (converted from VS2003). The solution builds but VS keeps updating the solution file which requires a check-out etc. The problem is caused as far as I can see by references to non existing projects! The solution files have references (GUIDs) to project files in the GlobalSection(ProjectConfigurationPlatforms). However some of the references are not listed at the top of the solution file and I cannot find (text search) any project file with such a GUID. If I remove the references then VS adds new references (again to non existing projects). The solution we have contains both vcproj files but also icproj (Intell compiler) with nested vcproj files. Does anybody have an idea what might cause this problem OR Does anybody have suggestions for debugging this problem Thanks in advance TomFr Example: GlobalSection(ProjectConfigurationPlatforms) = postSolution {35A5CE92-181C-4238-965E-870A39BA8D8D}.Debug.ActiveCfg = Debug|Win32 {35A5CE92-181C-4238-965E-870A39BA8D8D}.Debug.Build.0 = Debug|Win32 ... ... {84F9DB36-A887-44F6-B3AA-520FE484DC3A}.Release.ActiveCfg = Release|Win32 <== Non existing Reference. {84F9DB36-A887-44F6-B3AA-520FE484DC3A}.Release.Build.0 = Release|Win32 EndGlobalSection Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 7
    - Interesting fast interop problem Freqy wrote: I'm creating my own container because none of the existing containers support fast merging, fast splitting, and storing the same key twice. If MS had provided *one* decent container class for C# I wouldn't be having this problem. As for managed allocations, they are precisely what I need to avoid since they lock all CLI threads. I need to access up to 100 of these sorted lists about 50 times a second from up to four threads. Failing to do so in the allocated time causes failures at the real-time end (audio output). Ok, those are reasons good enough for me. This essentially means that you need a native container, with your own allocators as a basis, though. Freqy wrote: The circular reference I'm talking about is the class ListNode { public ListNode next; } circular reference required to make a linked list. I'm remembering why I only use C++ when I have to. I wouldn't be that quick to blame C++ (or C++/CLI, to be exact) ref class Foo { public: Foo^ next; }; Foo^ f = gcnew Foo(); f->next = f; Freqy wrote: Finally: managed vs unmanaged - that's the question I'm asking. At the base level the class must be native (or else I'd just implement it in C#). If I create a native C++ library to do this job, it will obviously store objects of type void*. How will I go passing in and out void*s and casting them all the time Can that even be done in C# The further question is to do with returning a reference to a node in the list. It's really the same question again - if my nodes are unmanaged classes, how can I return/wrap these in an efficient manner What you could do is write native C++ code for the container itself, including all time-critical operations and native memory handling, and follow up by creating a middle tier in C++/CLI. In the C++/CLI code you can call into the native container to insert / extract data, utilize the container management functions (e.g. sort), and so forth. The C++/CLI tier should also do any necessary conversion needed between managed and unmanaged types. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 8
    - BackupRead "Access denied" Problem (and backing up files in general) Are you running this on Vista Is the application running under non-admin user's context Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 9
    - sort of CListCtrl You can follow same method there,too. Whatch out paremeters of SetItemText. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 10
    - Wrapper Both articles are quite old. In either case, P/Invoke will play a key part no matter how you go about this. Your options for a solution pretty much limit themselves to 1. writing a managed app which imports specific functions, or 2. writing a mixed C++/CLI appilication, which includes the headers and links the import library of a C++ DLL library. In both cases, you'd re-expose the functionality from the dll through your own wrapper class. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 11
    - please help me---I cannot import VBE6EXT.olb I developed the addin in MS word 2003 using VC++ 2005+ATL. I cannot solve the problem for three days: when I compile: It says: error C4772: #import referenced a type from a missing type library; '__missing_type__' used as a placeholder. The error is in here: #import "C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\VBE6EXT.olb" rename_namespace("VBE6") BUT the file( VBE6EXT.olb ) exactly is in the file. I have no any clue how to solve it. I searched a lot through google. But there is not any help. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 12
    - Combobox Hi, If u would like to add data to combo at the design time itself,go to it's properties,select 'Data' Column,Enter items string like 'one;two;three'.If u run , u will see one,two,three items are added to combo box. To add strings ,at run time, add member variable for this combo and use either AddString or InsertString methods. or u can use Win32 SendMessage(LB_ADDSTRING) to add strings to combo box. about the string' I's working good now, but I want to change this from 2007/03/02 to 02/03/2007 For this following code will convert the date as requested.I don't know,there may be standard functions available. CString strDate="2007/03/02"; CArray<CString,CString> lst; int nPos = 0; lst.Add(strDate.Tokenize(_T("/"),nPos)); while (nPos>0) { lst.Add(strDate.Tokenize(_T("/"),nPos)); } strDate.Empty(); for ( int index = lst.GetCount()-1;index>=0;index--) { if (((CString)lst[index]).Trim().GetLength() >0) { strDate += lst[index]; if (index)strDate +=_T("/"); } } lst.RemoveAll(); Thanx, Ch.T.Gopi Kumar Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 13
    - Allocation problem You don't understand. The error you are getting in new might be a symptom. The actual cause could be elsewhere. The fact that it works using a different version of the compiler might also be coincidental. You might in the future encounter a different symptom using the other version of the compiler. The symptom might be very different eventhough the cause is the same. The actual problem might be very different from what I am describing, but based on the evidence provided so far, the possibility I suggest is possible. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 14
    - Error PROJ003 -- Error Spawning cmd.exe Then try http://search.msdn.microsoft.com/search/Default.aspx query=prj0003&brand=msdn&locale=en-us&refinement=00&lang=en-us There are many previous answers and the ones I looked at indicate that the VC Directories don't have the path for whatever is not found. For you, it seems strange that cmd.exe is not found. I think I saw a previous thread about this same problem for cmd.exe but I forget the solution; or probably I did not see a solution. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 15
    - Why no compilation error - Assigning int to std::string? Hello, I am sure I am missing something or may be I don't understand it properly but can somebody explain me why first line results into compilation error but second does not: Code Snippet std::string tmp_Error = 5 ; // Results in C2440 error std::string tmp_noError ; tmp_noError = 5 ; // No compilation error Thanks and Regards Yogi Watcher Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 16
    - Asunchronous UI updating - other way? In my application, I receive some values from two threads; I have main class of main form, that is one thread TH1 that receives some events like button click and second thread TH2 that works in loop generates some values. When some value or action is received from TH1 or TH2, they both need to be displayed in a control in main form. If I try to change control from TH2, get an exception about cross-threading operation. I have solved that in the way that TH2 doesnt change controls but only properties in main form and in main form I have timer that every 1ms updates labels from properties. Works, no cross-therading troubles. Although I don't like this timer that works all the time, I wanted to make maybe some asynchronous event running - that TH2 would just fire some event in main therad and it would update interface. But I dont know how to do this. How When I tried to make some BackgroundWorker that would br run every time a property changes, it didn't change interface, just has thrown A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll How to force main window to update its controls in its own thread (I think that I just don't know how to implement those events) Tag: Visual C++ Language Deleting a CLI array Visual C++
- Next
  - 1
    - need help with vC++ 2005 This question is also posted in need help . I hope someone else will explain why people should not post the same question in multiple places. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 2
    - MessageBox in a Hello-world app should not show ??? If I delete the manifest stuff, then everything is OK just as expected. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 3
    - Is there an SP1 update for the runtime libraries ?? Thanks to Einar in the language forum i found a workaround by build another installer of VC++ libraries using Redistributable Merge Modules installed by VC++ Express, as explained in http://blogs.msdn.com/nikolad/archive/2005/09/02/running-c-application-built-by-vc-express-on-another-computer.aspx Marcos Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 4
    - The while loop and the CPU. Dav S. A wrote: a loop is the only way to listen for requests using a Socket or TcpListener I think you are assuming something that is not true. Sleep() is not the only solution and is not even the most common. Please see The scope of this forum . There is a Microsoft newsgroup for network programming in which you will get better help. There are abundant tutorials and sample code you can easily find by seraching the internet. Web sites such as CodeProject, CodeGuru and many others can be very useful for this. I have a list of some in my Other Network Programming Sites and there are many others. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 5
    - LNK2001: using unmanangedC++ in manC++ Hi, thanks for your help. I'm not familiar with these settings and with this - I admit - basic knowledge, but I hope you're patient with me. I tried it again without these Additional Depencies und the Ignore Specific Library Settings just to see what happens. There are some (about 20) errors like: error LNK2005: __cexit already defined in MSVCRTD.lib(MSVCR80D.dll) libcmtd.lib error LNK2005: __amsg_exit already defined in MSVCRTD.lib(MSVCR80D.dll) libcmtd.lib error LNK2005: ___xc_a already defined in MSVCRTD.lib(cinitexe.obj) libcmtd.lib error LNK2005: "void * __cdecl operator new(unsigned int)" ( 2@YAPAXI@Z) already defined in MSVCRTD.lib(MSVCR80D.dll) nafxcwd.lib error LNK2005: "void __cdecl operator delete(void *)" ( 3@YAXPAX@Z) already defined in MSVCRTD.lib(MSVCR80D.dll) nafxcwd.lib error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup libcmtd.lib I know that you probably don't like to explain these errors, but I hope you help me finding the right configuration for my project. Thank you very much! Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 6
    - how to trim integer! well i have integer "2007" and i want integer "07". by modulus i am getting only 7 wat i have to do is to convert year from four digit into two digits its like int nYearFourDigit=2007; and i want int nYearTwoDigit=07; similarly if its 1999 then i want 99 only Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 7
    - MSVCRT80.DLL dependency probelm??? Private assemblies method worked for me to some extent. Thanks. Application is working fine enough on fresh XP but is crashing frequently on XP SP2 with C++ runtime distributable installed.There are some DRM license issues and application crashed when it attemps to communicate with server using webservice. Can you tell me how to remove these conflicts. Thanks, Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 8
    - std::vector versus std::map performance The problem with std::map, at least Microsoft's implementation, is that it uses a binary tree, giving it an O(log n) lookup. Even worse, every call made an allocation, making the per-insert cost much more than std::vector which grows the array in large chunks. Performance on std::map was such an issue for me that I stopped using it in a particular area of my code. (Edit: well, actually, I did keep using it in a couple places, but I changed the allocator to use a memory pool which allocated in chunks.) For faster lookup, use a hash table. Decide how many elements in a std::vector (say a prime number at least twice as many as the number of elements you will actually store), come up with some function that "evenly" maps the elements to indices in the array. Handle collisions either by bucketing, where each element is a linked list of elements with the same hash, or by probing, where you just march down the array looking for the match. (If something isn't in the standard implementation of STL, I tend to write it manually and customize it for my real needs. But on the other hand going with a stock implementation is safer and faster.) Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 9
    - Killing a process opened by _popen I have an application here that launches a process via the "_popen()" command. Now, is there a way to kill the process that was spawned by the popen command, without actually waiting for it to complete I was considering sending a "kill" signal to the process but I dont know how to get the pid of the spawned process. Any help is appreciated. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 10
    - Whole machine freezed in VC debugging mode Dear all: I have a strange problem with my Visual Sudio 2005. I support several products developed with Visual C++. But one of the products, every time when I turn on the debugging mode, the whole laptop will freeze, meaning the CPU is still running, but extremely super slow, possibly one instruction per five minutes. Even the Task Manager runs that slow. The only way to stop it is to turn off my Toshiba by powering off it, and then re-start. This has been the case for the last 5-6 months without exception. It is killing my job. It happens only for debugging mode. If anybody has any idea what's going on, please let me know and share with others. Thousands of thanks! Lewis Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 11
    - Thanks Microsoft for 11 Different String Types!!! Yeah the same thing happened with CString that happened with RTTI - when MFC came out C++ standard didn't include run-time type info so Microsoft hand-rolled it. I actually am a fan of CString and think the interface is more intuitive and the class itself is more powerful than std: tring/std::wstring - except that, of course, with the std library strings you can use them with the various STL algorithms. But your average developer isn't too comfortable with the STL, in which case std: tring becomes a sort of "dumbed-down" string class that really doesn't have the power that CString has. Unless I'm targeting standard C++ I would always prefer to use CString, especially now that I can get it without MFC if need be. But I think Microsoft would have provided a CString even if std: tring had been part of the standard. Microsoft really would prefer C++ers not write standard, platform-independent code, they want us to write MS code, and who can blame them This is the secret reason why the STL is and always has been so poorly documented on MSDN. Call me paranoid. So far as BSTR. CComBSTR, _bstr_t, I understand that BSTR originated with VB as a length-prefixed string. CComBSTR and _bstr_t were invented to help make our lives as C++ programmers a little easier as nobody likes to work with raw BSTRs. But CComBSTR and _bstr_t weren't really idiot-proofed enough, IMO, and lead to errors that are hard to detect - those weird kind of COM errors where you're trying to pass a BSTR over a COM method, or return one as an out param, and always the question is, "ok, who allocates this, and who frees it " Also there are some typedefs/#defines used with BSTR that are dubious at best. According to the compiler, a BSTR is an OLESTR is a LPWSTR is a wchar_t* is an unsigned short* and this is plain wrong. I understand why it was done but a BSTR is a fundamentally different type - length-prefixed and capable of containing embedded NULLs - so it shouldn't be typedefed to a non-length-prefixed type that can't contain embedded NULLs and.. you get my point. And how about Unicode, MBCS, DBCS, ANSI... two or three versions of each string manipulation primitive, so we get strcpy, _tcscpy, wcscpy, and well of course now we have the "secure" versions. Not to mention that for years now, to compile against the single-byte versions of the generic text routines you actually define _MBCS (multibyte), and to compile against Unicode versions you #define UNICODE/_UNICODE. Anyway, there are rationales for everything, but it's been a messy journey for us C++ers when it comes to strings and text data in general. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 12
    - Adding Existing Items to Project Hi there, Start Visula studio,click on File>New and from there in the menu of new,you have an option of "project from existing code".Click on that,you will come to a screen where it will ask you "What kind of project you want to create" From the drop down menu click"VC++ " Then you will be taken to a screen where you have to specify the project location and the source file location.Browse and specify the location.After you have given the correct path,I am sure you will be able to see your project in visual studio. All the best! Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 13
    - Combo box in CListCtrl in c++ Hi, I have a list control (CListCtrl) on my VC form . I want to make one of its column to show a combo box.How is this possible. Any suggestion will be help ful. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 14
    - ASM on Intel Compiler C++ =S Intel tries very hard to be compatible with GCC on Linux and VC on Windows. I'm fairly certain, ICL doesn't support GNU style inline assembly in Windows mode. You can still use standard inline assembly. There's no subsitution and no clobber and output list, you have to care of it yourself. Alternatively, there's the __cpuid intrinsic which you might want to use, something along the lines of inline void cpuid( int in, int& eax, int& ebx, int& ecx, int& edx) { int regs[4]; __cpuid(regs,in); eax = regs[0]; ebx = regs[1]; .. } Visual C++ does support (shared-memory) OpenMP, but Intel is usually very strong at low-level performance optimizations. And of course, it's probably a good idea to check at the Intel support forums. -hg Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 15
    - Problem with minimizing a child window Hello. Im making an application that has a CMDIFrameWnd and containing two CMDIChildWnd. The parent window and one of the child windows have been added by the wizard on creating my project, the other child window is added by me later and thats the one Im having trouble minimizing. When I maximize my custom added child window the Minimize/return to previous size buttons at the top left corner of the window disappears, so its stuck in maximized mode, this doesn't happen when I maximize the original child window that was created by the wizard. Here is some of my code for my custom window: BOOL CTestWnd::Create() { return CMDIChildWnd::Create(NULL, "Test Window", WS_CHILD | WS_VISIBLE | WS_OVERLAPPEDWINDOW, rectDefault, ((CMDIFrameWnd*)((CNIIface2App*) AfxGetApp())->m_pMainWnd), NULL); } In the second to last argument I get the main window for my application and add it as a parent window. How can I fix it so that my custom made child window also works with the minimize/maximize/restore size buttons properly The other child window that does work is added using the document/view architecture and thus I have no control of that code; it is added by the DocumentTemplate on starting my program. Tag: Visual C++ Language Deleting a CLI array Visual C++
  - 16
    - What's the parent of a top-level VC8 project? This being MS' forum, yes, I was hoping somebody from MS would care to comment. Tag: Visual C++ Language Deleting a CLI array Visual C++

Thomas2054

I am used to the C++ requirement of using

delete [ ] array_pointer;

to free memory.

If I have a CLI array like

pString_progString = gcnew array<System:tring ^>(7);

How do I delete it I have read that I should not use the "delete [ ]" form, but I do not know what to use.

The help system for "array" makes no mention of this.

I am new to the CLI constructs and thus may be missing something basic.

Thanks.

Thomas

Re: Visual C++ Language Deleting a CLI array

nobugz

You don't. The garbage collector will delete it for you. You are missing something basic, read up on the .NET garbage collector. It is important.

Re: Visual C++ Language Deleting a CLI array

Thomas2054

nobugz,

Thanks for the reply. I looked at the material on garbage collector and it does make reference to deleting a tracking handle in order for the object's destructor to be run.

I can understand not using delete on an object that has no destructor, or at least no destructor written by me. But what of an object with an destructor in which there is important stuff to run

If I have an CLI array of with objects that have a destructor how do I invoke it

Thanks.

Thomas

Re: Visual C++ Language Deleting a CLI array

nobugz

In the new C++/CLI syntax, the destructor for a managed class has an entirely new meaning. It is invoked when you call Dispose() or exit a block where the class instance is declared as a local variable (no hat). The finalizer (!ClassName) is invoked by the garbage collector, whenever it feels ready to do so. You should avoid using it.

I can't really think of a good reason you'd need a destructor for a CLI array. Both the array and its elements are automatically "deleted" by the garbage collector.

Re: Visual C++ Language Deleting a CLI array

Thomas2054

Thanks nobugz for taking the time. You have gotten me off BDC by showing me were to look for more information and the fact that the destructor now serves a different purpose than in C++ originally.

Thomas