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- Previous
  - 1
    - behaviour of simple short -> int conversion differs in debug and release version The following code prints out -1 in debug mode (correct) and 0 in release mode (wrong) if compiled with Visual Studio.NET 2003. #include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { short usVal; // enter -1 std::cin >> usVal; int iVal = usVal; iVal = iVal >> 17; std::cout << iVal << std::endl; return 0; } Tag: COM files Tag: 269201
  - 2
    - VC++ 6 vs. VC++ express: please advise I'm planning to write some code for a friend (for free), and may use C++, which I haven't used in 5 years. Just installed my VC++6 on Windows xp home edition. Since my recollection of MS VC++ has faded anyway, I was thinking of trying their free VC++ express (I love C++ but never gave MS VC++6 high marks for user friendliness). I have some questions and reservations, and would appreciate any advice. --Will installing the free VC++ express mess up my installation of VC++6, somehow making that less usable? I imagine installing VC express might answer the remaining questions, but I'm a bit afraid to do that without reassurance about its effect on VC++6. --does VC express have the full ISO C++, including STL? --are there restrictions, like amount of memory used, size of arrays, etc? --does it produce reasonably fast code? --is it easy to get started? --what else does VC express lack that the full commercial product has? --any other comments are welcome My code is not going to be polished professional work--just a favor for one friend. But I do need STL, operator overloading, reasonable speed of execution, and to be able to read/write text files on disk and display info to the user. Basically, the program is going to read *a lot* of data, do some *lengthy* numerical number crunching, write some results back to disk, and display some results. Thank you all! Tag: COM files Tag: 269189
  - 3
    - What the L? in wsprintf Hi, I'm programming in Visual C++ 2005 Express Edition and am having a problem with wsprintf. I'm trying to display a variable value on screen, here is my code: wsprintf(pelement->string, L"%d", (UINT32)val); Only the most significant character shows up. L"%2d" or L"%3d" doesn't really help. If I use just "%3d" without the L it just displays %3d on the screen. Text works fine with the line: wsprintf(pelement->string, L"%s", "test"); Others I have talked to don't even use the L, so why do I seem to need it. Why does it not display integers correctly? And what does it mean? Thomas Tag: COM files Tag: 269180
  - 4
    - Strange delete memory failure Hello all, I have the following problem: i am declaring something like that: char* mystring = new char[200]; then i'm filling the string. After lloking the memory, it looks like it is correct with 4 no man's land bytes before and after the string and correct length. However, when deleting (delete [] mystring), it causes a debug assertion failure even if just before the delete, my string is still well defined in memory. How can such a thing happen? I know I am doing a lot of processing between declaration and delete and that could be that i am writing at the wrong adress but this is not the case here. What should I check in this case? thanks for any help. bye F. Tag: COM files Tag: 269178
  - 5
    - dllexport and DEF files!! OK I'm writing a dll in C (can't use C++), and I was using the _declspec(dllexport) to export the functions, however it crashed when making calls because I didn't have a DEF file. Now I understand you only need a DEF file if you don't use _declspec(dllexport) or if you're using _stdcall calling convention, which I'm not. Is this just a C requirement, and not needed in C++? Tag: COM files Tag: 269170
  - 6
    - Cannot link with library Hello All, I am writing one dll which gets statically linked to some lib say library1.lib. library1.lib exports some functions say function1. After building library1.lib,I have linked to it by going project->settings->linker->input. I have used some functions from it in my DLL. Now when I build DLL, it gives me some linker errors like ssleay32.lib(s2_srvr.obj) : error LNK2019: unresolved external symbol __imp__SetLastError@4 referenced in function _ssl2_accept ssleay32.lib(ssl_cert.obj) : error LNK2019: unresolved external symbol __imp__GetLastError@0 referenced in function _SSL_add_dir_cert_subjects_to_stack ssleay32.lib(ssl_lib.obj) : error LNK2019: unresolved external symbol _time referenced in function _ssl_update_cache like wise Could someone shed some light on this problem ? Thanks. Tag: COM files Tag: 269168
  - 7
    - HELP: DLL and synchronizing global data I have a DLL that contains global data. The data is initialized from DllMain during DLL_PROCESS_ATTACH and destroyed during DLL_PROCESS_DETACH. Once initialized, the global data is only read from and not modified at all. My question is what sort of protection should I provide, if any, to this global data. I have done some testing and everything appears to work with no synchronization at all, my concern is that problems might appear when running on multiprocessor machines, something I can't test for at the moment. Any help much appreciated... -- Best regards Mark Tag: COM files Tag: 269161
  - 8
    - COMDAT folding - which flags disable it inadvertently? Howdy; I'm wondering which compiler flags in VC++ 2003 and 2005 would inadvertently disable COMDAT folding? Reading one of Raymond Chen's blog posts, /Za definitely kills COMDAT folding support. The reason I ask is because we're replacing some old non-templated arrays with templated array types in one of our larger projects, and we're getting a huge increase in size via a Release build with the relevant COMDAT-specific flags turned on. Also: can COMDAT folding occur cross-library? Or is that only possible if Whole Program Optimization and Global Optimizations are turned on? Thanks! Si Tag: COM files Tag: 269160
  - 9
    - Run in debug mode with VS and Without. Difference? Here is my problem whihc is very strange for me; (VC++ 2003) i am developping a multi-threaded DLL and using STL of VC++, (especially "list")... So far i always compiled my code in debug mode... ok... Here it is; When i run my application with double click on it, it throws a run-time error; i search and i found that it gives error on a "delete xStruct;" statement, i commented it and it again gave an error when trying to run push_back of STL list. Here is the strange thing; Without changing "anything" instead of double clicking&running the app. when i start it via "Start" button (again in debug mode) in VS 2003 it works perfect... How can u explain it??? Tag: COM files Tag: 269159
  - 10
    - VC BUG,SO BIG class c{ int i_; public: c(int i){ printf("c\r\n"); i_ = i; } ~c(){ printf("~c\r\n"); i_ = -1; } void foo() const{ printf("foo,%d", i_); } }; class a{ public: const c & c_; a() : c_( c(1) ) { } }; int main() { a _1; _1.c_.foo(); } The ~c() will never invoke. So RAII is a dream. Tag: COM files Tag: 269153
  - 11
    - defragmenting memory I got a shareware program that supposedly defragments memory in Windows. Any ideas what kind of VC++ functions it is probably using? Tag: COM files Tag: 269150
  - 12
    - GetProcAddress() refused to return address I'm trying to explicitly link a 3rd party DLL, but I can't get GetProcAddress() to return an address to any of my functions. I'm able to link implicitly, and here's a declaration for one of the functions that I used for implicit linking: extern "C" int __declspec(dllexport) __cdecl OpenFile(LPCTSTR AFileName); That works when linking implicitly. So when linking explicitly, LoadLibrary() returns fine, but when I call: GetProcAddress(hDLL, "OpenFile"); it returns NULL and GetLastError() indicates "The specified procedure could not be found". I've Googled for this, but this seems to be a very unique problem, and I don't know what else to try. I'm running VC++8.0. Tag: COM files Tag: 269148
  - 13
    - Profiling code with optimisation on Hi, I have some templated vector code to unroll a loop, see below. I am trying to test this code against a simple a*a + b*b + c*c vector dot product to see if it truly is producing the same code. I ran the code below and had a look at the assembly listing and it does look like the inlining works, but unfortunatly the optimising power of the compiler is so great that it substituted my code for a simple: int main() { printf("%f", 14.0f); return 0; } which is great, but not what i want for profiling purposes :-). I still want some optimisation for inlining the code, just not so much. NOTE: I only have the basic optimise for speed settings, nothing fancy like global intrinsic functions.... template<typename _Value> struct Vector { _Value _value; }; template<typename _Vector> struct VectorDotProd {}; template<typename _Type, int _Length> struct VectorDotProd<Vector<_Type[_Length]> > { typedef Vector<_Type[_Length]> _Vector; __inline static float Apply(_Vector const & vector0, _Vector const & vector1) { return Impl<_Type, _Length-1>::Apply(vector0, vector1); } template<typename _Type, int _Index> struct Impl { __inline static float Apply(_Vector const & vector0, _Vector const & vector1) { return vector0._value[_Index] * vector1._value[_Index] + Impl<_Type, _Index-1>::Apply(vector0, vector1); } }; template<typename _Type> struct Impl<_Type, 0> { __inline static float Apply(_Vector const & vector0, _Vector const & vector1) { return vector0._value[0] * vector1._value[0]; } }; }; int main() { typedef Vector<float[3]> Vector3f; Vector3f v0 = {1.0f, 2.0f, 3.0f}; Vector3f v1 = {1.0f, 2.0f, 3.0f}; float result = VectorDotProd<Vector3f>::Apply(v0, v1); _RPTF1(_CRT_WARN, "v0.v1 = %f\n", result); printf("%f\n", result); return 0; } Tag: COM files Tag: 269147
  - 14
    - Deploying builds, PDB, C7 and debug symbols... Is there a way to ship debug symbols linked into the PE with MSVC8? It seems only the PDB method is supported because of the linker, yet the C++ compiler knows how to embed C7 in the .obj files. It is very tedious for us to deploy .PDB with each .DLL and .EXE, through Subversion, because of the sheer size of these... Does somebody have a solution to this problem? Cheers, Bertrand Tag: COM files Tag: 269144
  - 15
    - Tooltip only shown sometimes?! Hello, I implemented a simple tooltip for my deskband which is only shown sometimes. for example after activating the deskband and hover over the band, the tootip is shown. it is not shown, when the time of the tooltip is eleapsed (smoothed out) and i hover the cursor again over the band. it is also not shown when i click on the desktop and then hover the cursor over the band. ..sounds difficult?! :-) to understand what i mean, have a look at the tooltips of the tray icons. they are shown always. has anyone an idea what's happening here? i looked at the msdn lib, used google, but all without success. thanks for any tips and advices! ////////////////////////////////////////////////////////////////////// m_hWndToolInfo = CreateWindowEx( WS_EX_TOOLWINDOW, TOOLTIPS_CLASS, NULL, WS_POPUP | TTS_NOPREFIX, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, m_hWnd, // Window Handle of Deskband NULL, g_hInst, // Instance of Deskband NULL); if (m_hWndToolInfo) { SetWindowPos(m_hWndToolInfo, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW); char strTT[400] = "Some Text"; LPTSTR lptstr = strTT; // Initialize Members of the Toolinfo Structure m_ti.cbSize = sizeof(TOOLINFO); m_ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND; m_ti.hwnd = m_hWnd; m_ti.hinst = g_hInst; m_ti.uId = (UINT)m_hWnd; m_ti.lpszText = strTT; // Send an TTM_ADDTOOL to the Tooltip Control SendMessage(m_hWndToolInfo, TTM_ADDTOOL, 0, (LPARAM) (LPTOOLINFO) &m_ti); SendMessage(m_hWndToolInfo, TTM_ACTIVATE, true, 0); } ////////////////////////////////////////////////////////////////////// Tag: COM files Tag: 269132
  - 16
    - ref / value structs I`m having some trouble calling functions from a c++\cli dll from my C# code. I pass in structs (that are defined in the DLL) as ref types. When I try this I get an error. When I create them as value types the function works fine with the same syntax on the C# side. Can you also point me to some artical on the subject, since I can`t find anything... Tag: COM files Tag: 269131
  - 17
    - why the service manager doesn't start my service Hi, all, I have a question, and I hope to get some hints here.. I created a really simple service just to check why the service manager doesn't start my service the second time if the first time failed.. I created an atl service through the wizard, and the only thing I do is override the PreMessageLoop()... HRESULT CAutoStartServiceModule::PreMessageLoop(int nShowCmd) { HRESULT hr = CAtlServiceModuleT<CAutoStartServiceModule, IDS_SERVICENAME>::PreMessageLoop(nShowCmd); if(FAILED(hr)) return hr; //return a false here.. //log event here.. LogEvent(_T("Failed to start the service, should retry ....")); return E_ABORT; } And in the service control panel, i set "Recovery options" as First Failure: Restart the service.. Second Failure: Restart the service.. Subsequent Failure: Restart the service.. But the service was not restarted ... I wonder maybe I miss something to report the right information back to the service control manager.. Thanks for any help.. J.W. Tag: COM files Tag: 269119
  - 18
    - Converting CString to char array I've a CString that need to be converted to char array. Is my syntax correct? CString c_string = "XYZ"; char char_array[20]; strcpy(char_array, c_string); Tag: COM files Tag: 269102
  - 19
    - Alocating memory for vector of structs Our need is to dynamically allocate memory for an stl vector of structs which contain vectors in some of their fields: vector< struct{ int; float; vector<int>; vector<int> } > The size of the int vectors is not constant; it varies from element to element depending on the input. How can I most efficiently allocate the memory needed for this? Thanks! Tag: COM files Tag: 269101
  - 20
    - what's the meaning of "!!" in c++ Hi all, Recently I encountered some code like this: // ------------------------------------------ if( !!tmp0 ) { TempControl->sSelection = ConvA2I((TCHAR*)tmp0); } // ------------------------------------------ Anyone can give a clue what it means or why the author write this code "!!tem0" ? why not just if(tmp0) ? there should be some reason behind it. Best Regards, Lin Tag: COM files Tag: 269096
  - 21
    - "Unspecified Error" while cleaning a project Hi all. When I do a right-click on a particular project in a solution and try to "clean" it, or look at the "properties", I get an "Unspecified Error". I understand this must have got something to do with my messing around with the .vcproj's and the .sln's by hand. But I have no clue as to how to go 'bout it. I'm using VC++ .NET 2003. Any help will be greatly appreciated. Thanks in advance. Nishant. Tag: COM files Tag: 269086
  - 22
    - console winevents and codepage change on 2 or multi cpu systems Hey guys, any help would be appreciated. Background: My system basic specs is Windows XP, SP2, VC6. Intel P4 Hyperthreading. This problem occurs only if there is more than 1 cpu(hyperthreading or Dual Xeon). I am using SetWinEventHook to get notification of console winevents. Events 4001h-4007h After I setup the hook, I run several console applications, let's use cmd.exe as an example. all is well, notifications are coming from all the windows and I was happy for a while. Yet... When I run CMD.EXE, and then run "chcp", I get the active codepage. if I try to change it using "chcp 437", the CMD.EXE process hangs. Same happened if I use a console application of my own and use the api SetConsoleOutputCP to change the codepage. If the console process didn't hang for the first time, opening a second console application(or cmd.exe) and changing the codepage causes it to hang. Assume the only line of code in the WINEVENTPROC that fires is int i=0; No global variables, no calls. so the problem is not within the proc. I tried WINEVENT_OUTOFCONTEXT and WINEVENT_INCONTEXT methods with EXE's or DLL's, exact same results. I tried hooking only 4007h event, same results. The problems occurs only in the console events(4001h-4007h), other events work great. If I UnHook the events, change the codepage(works) and hook back, it works but it's just not supposed to be this way! ! ! and it is not good for my design. On single processor systems it works well, on multi processor systems it only works If I set the affinity of CSRSS to only one CPU and so on (not a good solution obviously, just for the sake of testing...) then all is working well. Questions 1. WTF? 2. Am I doing something that is not thread safe ? 3. Is this a bug in windows ??????? is their api not thread safe ? 4. Not related to the problem(I am not using VB for the above problem), does any one know why UnHookWinEvent doesn't work in VB(doesn't unhook) ? while SetWinEventHook is working great.? Thank you very much for your time, Lao. Tag: COM files Tag: 269085
  - 23
    - Generic Class Hi Folks, Could you please elucidate the meaning of word "Generic" in context of C++?? Is it like "Common", or "Basic", or what??? What is the best usage of that kind of classes? Thanks a bunch! Tag: COM files Tag: 269078
  - 24
    - User Breakpoint Unhandled Exception Error VS.NET 2003 I was browsing the other posts on this topic but I need to enquire further on it. I'm experiencing the same User Breakpoint Unhandled Exception on one of my machines. My main desktop. Possible heap corruption ( if it is in fact a heap corruption, how do you trace the and remove it?). Then I decided to run the project on my laptop with the same version of VS.NET (2003) and it ran without error or interruption of any sort in all modes(release, debug). I'm really not sure what else to try as I need to get it back functioning normally on my desktop which is my main development machine. Especially due to the fact that it has a video card supportive of the advanced graphics technologies that I plan to use in the project. Any assistance on my situation is much appreciated. Tag: COM files Tag: 269076
  - 25
    - [newbie] new and delete Hi, I'm really new to C, so please excuse trivial questions: What is the correct mechanism to delete memory that was created like that: void AnyFunction() { char pBuf[300]; [...] do something with pBuf //now, delete pBuf delete [] pBuf; } Somehow the delete statement does not seem to work - can anyone tell me (for sure) how I successfully delete objects like pBuf in the example above? Best wishes, Peter Tag: COM files Tag: 269072
- Next
  - 1
    - Regular expression for Japanese charector set Hi, I need a regular expression for the validating the edit control data : Characters that can be used:Full width characters , Half width alpha numeric characters,half width symbols like ! # $ % & ' * + - / = ? ^ _ ` { | } Can any one solve this problem, writing a regular expression for the above specified condition I need it ASAP Tag: COM files Tag: 269069
  - 2
    - TreeView and GetCheck() results In a TreeView with checkbox style when I check or uncheck a box the immediate result is always a bad result. Example: I click on a checkbox and in the OnClick() function I go to see if the value is 0 or 1; the value is always wrong and if I clic in the same checkbox on in another one the result is always the previous result. I've tried with UpdateData(true\false) but no changes happen. I can see that SetCheck() work fine but not GetCheck . What's the problem? Tag: COM files Tag: 269066
  - 3
    - Unauthorized memory allocation - Possible VC2005 bug? Hi, I have a relatively small Visual C++ project using MFC which allocates unusually hight amount of virtual memory as soon as the program starts(roughly 280MB), even before hitting the internal MFC stuff. When I debug them program in Visual Studio 2005 with a breakpoint at the beginning of int _tmainCRTStartup(void) function in crt0.c Windows Task Manager shows the following information: Memory Usage: 5,620K Peak Memory Usuage: 5,620K Page Faults: 1,420 VM Size: 282,360 K Paged Pool: 632K NP Pool: 2K Handles: 102 Threads: 1 GDI Object: 6 Running the program in release mode produces the same result. Also, compiler/linker settings are almost set to default. My question why the program allocates so much VM, before even its started WinMain() function? Is it a Windows issue or Visual C++? Any help appreciated! - Damon Tag: COM files Tag: 269052
  - 4
    - VSflexgrid Highlight problem in VC++ I am using VSflexgrid8 ocx control in VC++ code. I need to highlight a particular row dynamically by code not by clicking the row manually.How to achieve that. Second thing is if I resize the column width by mouse the highlighted row should be present but in my programme it is disappearing.how to hold the highlighted row even after resizing the column. Any solution is great help to me Thanks Tag: COM files Tag: 269051
  - 5
    - Quick question! Hello, How are you all doing today... I hope only good! :-) I am trying to read a byte from my PC into a micro processor using RS232... I know I know, you all though I had finally got this done... But you see, I never really tested the part where the processor had to read the bytes in from the PC! It appears just as complicated as the vice versa operation which is reading in bytes from the processor by which I have done! And since the available controls on the CPU side are very limited, I must be carefull on what I issue from the PC side! I am using the popular serial class... here is the problem I hope to resolve! I am sure its got something to do with the windows variable types!!! ? Simply put, here is the bulk of the code: ////////////////////////////////////////////////////// LRESULT CALLBACK WndProc_CW1 (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { TCHAR zzz[] = TEXT("5"); char xxx[1]; ...other code... case WM_COMMAND: //Convert Wide characters to byte sized charaters WideCharToMultiByte(CP_ACP,0,zzz,1,xxx,0,NULL,NULL); MySerial.Write(xxx); return 0; ...other code... } //////////////////////////////////////////////////////////////////////// Basically, when I converted the wide character to multi byte, and I put my cursor over xxx, I get: "Ã?Ã?Ã?Ã?Ã?Ã?Ã?Ã?Ã?Ã?5" Shouldn't I just be getting the, "5". The reason I am asking this is that my processor gets two rs232 interupts instead of just one, and reads in "Ã?" on the first interupt and "Ã¿" on the second interupt. I obviously need only the "5"! Overall I thing that I am somehow sending out wrong information, but why? Does someone know why this is happening! I thankyou all for any resolutions to this problem! Sincere Thanks! -- Best regards Robert Tag: COM files Tag: 269049
  - 6
    - why XOR bitmap edge always not smooth? hello, I XOR tow bitmaps, one is black for mask. But the edge always not smooth. Why? Any good method? Many thanks. Tag: COM files Tag: 269045
  - 7
    - ? Function Pointer to a Method of Unknown Class Hi, I've got a class which needs to store a pointer to a function. The class will use that as a callback to pass some data to the specified function when the data changes. I need to be able to pass a method of the required format from an unknown class to it. For example: typedef void(*Z)(int); class A { int i; Z fp; void ReadI(); } class B { void init(); void Foo(int t=0;); A m_a; } class C { void init(); void Bar(int x); A blah; } ... void A::ReadI() { i=somechange(); fp(i); } void B::init() { m_a.fp=Foo; } void B::Foo(int t) { cout<<t; } void C::init() { blah.fp=(Z)Bar; } void C::Bar(int x) { int i=x; } Unfortunately, I keep getting an error saying that it cannot convert from the function to the typedef. I took a look around but came up empty. Is this possible? If not, is there another way that works (preferably simple)? Thanks. -- Alec S. news/alec->synetech/cjb/net Tag: COM files Tag: 269032
  - 8
    - DLL exporting with __declspec or .DEF file? I've been reading several posts, MSDN articles and VC Help but it's still not clear to me whether or not an EXE has to be recompiled if an implicitly linked DLL changes. Currently, all of our applications are statically linked and we are considering converting our library code to a DLL. From what I've read, implicit linking seems to be the simpliest to implement but I'm concerned about the statements I've read that says if you are using __declspec to export/import and you change the DLL then you have to recompile the EXE's that implicitly link to the export lib. We are using purely C code, no C++ and the testing that I've done seems to indicate that additional functions can be exported from the DLL and the EXE's run fine without recompiling. Is this just by shear luck? I guess I'm trying to understand if using __declspec exports by name or ordinal and if using __declspec is the way we should go or if we should be using the .DEF method, though this method seems to carry a high maintenance overhead. All of the code is under our control and the DLL is meant to be used only with our applications. We simply think switching our library code over to a DLL will allow us to provide bug fixes to existing code without having to redistribute all the applications that use the library functions and add new library functions needed for new applications. Any comments, insights or suggestions will be greatly appreciated. Tag: COM files Tag: 269027
  - 9
    - Visual Studio 2005 C++ compiler crash The following code crashes Visual Studio 2005 C++ compiler: CString GetApplicationDir() { /* gets path of current .exe file */ } ... CString TextLine; TextLine.Format ("%s%s %d",GetApplicationDir().operator LPCTSTR(), ); I think the original author meant to cast the result of the function call to a LPCTSTR, but chose an awkward construct. In any event, it should not have crashed the compiler. Tag: COM files Tag: 269019
  - 10
    - Is there SP6 for Visual C++ 6.0 ? Microsoft's web site says here: http://tinyurl.com/foqqc that "Service Pack 6 for Visual Basic 6.0, Visual C++ 6.0 with Visual Source Safe 6.0d" is "recommended for all users of Visual Basic 6.0, Visual C++ 6.0 and Visual Source Safe 6.0." But the title reads "Visual C++ 6.0 *with* Visual Source Safe 6.0d". I am confused: Is SP6 good for standalone Visual C++ 6.0 or is it good only for the version that comes with Visual Source Safe 6.0? Currently I have SP5 installed on top of my VC++ 6.0 and I would like to know whether SP6 can benefit me in anyway. (please don't advise me to upgrade to Visual C++ 2005, since I am planning to do so anyway. However for an intermediate period of time, I still need to use MSVC 6, just to make sure that I am not breaking a current legacy system) Thanks, Victor Tag: COM files Tag: 269018
  - 11
    - declaration incorrect I'm working on some AI stuff for simulation. The code below generates error ============================= c:\Documents and Settings\luckie\My Engine\Gamedemo\CMisc.h(12): error C2143: syntax error : missing ';' before '<' c:\Documents and Settings\luckie\My Engine\Gamedemo\CMisc.h(12): error C2238: unexpected token(s) preceding ';' c:\Documents and Settings\luckie\My Engine\Gamedemo\CMisc.h(12): error C2501: 'CMind::list' : missing storage-class or type specifiers =================================== class CMind { public: CMind(); ~CMind(); private: list <std::string, D3DXVECTOR3> m_MemorySlot; }; Tag: COM files Tag: 269011
  - 12
    - unicode support Hi all, I have an application which supports only ascii. Now, we would like give unicode support to this application. It is win32 application with mfc support application. What setting should I change for unicode? -- Thanks & Regards, John. Tag: COM files Tag: 269010
  - 13
    - SetConsoleCtrlHandler? Hi all, I tried to handle, close event of win32 console window with MFC support using SetConsoleCtrlHandler API. According to http://windowssdk.msdn.microsoft.com/en-us/library/ms685049.aspx link. It is not able to handle Ctrl + c event. How can I handle it? It is populating one dialog box which has "End Program" dialog box with "Endnow" and "cancel" buttons. (Window cannot end this program. It may need more tme to complete an operation.....) Am I missing anything to handle console window events like Ctrl+c for Win32 console application with MFC support. -- Thanks & Regards, John. Tag: COM files Tag: 269008
  - 14
    - Toolbar multilingual Hi I have make a toolbar for internet explorer based on the Rashid thada toolbar sample which i have download from the codeproject.com. I have convert this sample to UNICODE. How i can Set the Font of a control so that i could diplsay chinies or other languages on the buttons. i have a specific font i want to set the font for he buttons of the toolbar and want to display some text of that font on the toolobar buttons. Jinn. Tag: COM files Tag: 269007
  - 15
    - Casting of pointer to member functions I am writing an application in which I use pointer to member functions to achieve a certain functionality. At one point I need to be able to cast between different types of member function. In a very simplified version, this is what I want to do: class Base { public: typedef void (Base::*MethodPrototype)(); Base(MethodPrototype method): m_method(method) {} void call() { (this->*m_method)(); } private: MethodPrototype m_method; }; class Derived: virtual public Base { public: Derived(): Base(reinterpret_cast<MethodPrototype>(&Derived::myMethod)) {} int myMethod() { return(1); } }; The constructor of the Derived class failes to compile as visual c++ reports that the reinterpret_cast is invalid. This does however only occur when the inheritance is virtual, if it isn't virtual, the casting works fine. Furthermore, the above code compiles with GCC 3.4.2. Is it Visual C++ or GCC that isn't quite conformant. And is there a workaround to be able to do this? Thanks for any help! / David Olsson Tag: COM files Tag: 268999
  - 16
    - regarding Object Unwinding Hello, i had a problem of Object Unwinding, my compiler shows error : error C2712: Cannot use __try in functions that require object unwinding. So, i know that SEH doesn't support the "Object Unwinding", that is supported by C++; what can be done additionally to overcome this problem. Thanks in advance. Tag: COM files Tag: 268997
  - 17
    - Retrieve ListBox Items I am currently trying to retrieve a certain item in a listbox by passing in the window handle and the string value of the item I am looking for. I know that once I have the window handle of the listbox I can retrieve the item where it matches the string value I passed in to the method. Once I retrieve the correct item I want to be able to highlight that item, but the problem is that I do not know the correct syntax for this to happen. The code is not compiling correctly. If someone could please help me out with this simple task I would appreciate it. void CListBoxTest::TestHighLight( HWnd hwnd, string value ) { int itemValue = SendMessage( hwnd, LB_FINDSTRINGEXACT, -1, value.cstr() ); //To add the code here for highlighting listbox item once the index is found } Tag: COM files Tag: 268993
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    - Any good "nullable" template for native C++? I need to read int and float numbers from a text file. Some of value may be missing and I need a nullable variable to store it. Any widely used one available? Tag: COM files Tag: 268979
  - 19
    - error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'std::string'... I'm sure I'm not defining this correctly. What's the right method here? #include <iostream> using namespace std; struct functor { void operator()(string& s) { cout << "Called (" << s << ")" << endl; // Error here } }; int main(int argc, char** argv) { cout << "Start" << endl; string parameter("parameter"); functor example; example(parameter); system("pause"); return 0; } Tag: COM files Tag: 268971
  - 20
    - CL bug when compiling __hook (..)? Hi NG, have a nerve-racking compiler error (VC 8; CL Version 14.00.50727.42) when using __hook (..): [...] void func (...) { __hook (&Controller::PlayCompleted, this, &ControllerImpl::EhPlayCompleted); __hook (&Controller::ForwardCompleted, this, &ControllerImpl::EhPlayCompleted); __hook (&Controller::RecordCompleted, this, &ControllerImpl::EhRecordCompleted); __hook (&Controller::MessageCompleted, this, &ControllerImpl::EhPlayCompleted); // <=== Compiler error C2039: 'MMessageCompleted': undefined identifier ???? __hook (&Controller::GoCompleted, this, &ControllerImpl::EhPlayCompleted); __hook (&Controller::SkipCompleted, this, &ControllerImpl::EhPlayCompleted); __hook (&Controller::RewindCompleted, this, &ControllerImpl::EhPlayCompleted); __hook (&Controller::PlayProgressChanged, this, &ControllerImpl::EhPlayProgressChanged); __hook (&Controller::ForwardProgressChanged, this, &ControllerImpl::EhPlayProgressChanged); __hook (&Controller::RewindProgressChanged, this, &ControllerImpl::EhPlayProgressChanged); __hook (&Controller::RecordProgressChanged, this, &ControllerImpl::EhRecordProgressChanged); } [...] compiler output: [...] d:\projects\lm\applications\diconcl\recorder\wio_controller\controllerimpl.cpp(764) : error C2039: 'MMessageCompleted': Ist kein Element von 'WIO_Controller::Controller' d:\projects\lm\applications\diconcl\recorder\wio_controller\controller.h(156): Siehe Deklaration von 'WIO_Controller::Controller' d:\projects\lm\applications\diconcl\recorder\wio_controller\controllerimpl.cpp(764) : error C2065: 'MMessageCompleted': nichtdeklarierter Bezeichner d:\projects\lm\applications\diconcl\recorder\wio_controller\controllerimpl.cpp(764) : error C3709: '&Controller::MMessageCompleted': Ungültige Syntax zur Bestimmung des Ereignisses in __hook/__unhook [...] As you can see I'm never using an event called 'MMessageCompleted'! Reordering of the above sequence of statements leads to another C2039. So, what can I do? Thanks Edgar Tag: COM files Tag: 268960
  - 21
    - CListView listing items in other views but not report view Hi, I'm working on a program that contains a CListView. When I insert items into it, they're visible in all views (icons, list) except in report view. The column headings I created (OnCreate method) are visible in report view though. Any ideas why report view is not displaying them? Another question, is a column header actually a column? In other words, if I only insert a column heading will using the InsertItem followed by the SetItemText routines actually insert values into the report view? This is actually a repost of the post below, but nobody responded. Maybe I should have been more specific http://groups.google.com/group/microsoft.public.vc.language/browse_thread/thread/9b0cb7194a7d2173/004e2677a9cd5363?hl=en#004e2677a9cd5363 Regards, Michael Tag: COM files Tag: 268952
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    - Accessing the value of a struct Hi I have a COM component that passes some udts around. The function header is thus: void App::PassUdt(struct udtSR *pudtSR) pudtSR has a member struct called udtValue1 of type udtLONG that has the definition: struct udtLONG { long lngValue; enum enumVarStatus enmStatus; }; what i want to do is set a LONG to the value stored in the lngValue part of udtLONG. however if I add long lVal = pudtSR.udtValue1.lngValue; I get the following error: error C2228: left of '.udtValue1' must have class/struct/union type Can anyone point me in the right direction ? Many thanks Steve Tag: COM files Tag: 268938
  - 23
    - saving a word document in a runtime path Hi everybody, I have a source code that stuart sent me and I will include it afterwards. But the problem is I need to save the word document in my own favorable path not in the path which my user chooses. Is there anybody who can help me? // The code is being run in visual studio 6 vc++ source code: //#include "stdafx.h" #include <afx.h> #include "atlbase.h" CComModule _Module; #include "atlcom.h" #include "atlimpl.cpp" #include "atlctl.h" #include "atlctl.cpp" #include "comdef.h" #include <fstream.h> // In order to be able to include the type libraries from MS Word we have // to undefine the ExitWindows macro from winuser.h since this macro will // clash with the ExitWindows method of the Tasks interface. // See Q148223 at MSDN. #undef ExitWindows #import "C:\Program Files\Common Files\Microsoft Shared\OFFICE10\MSO.DLL" #import "C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\VBE6EXT.OLB" #import "C:\Program Files\Microsoft Office\Office\msword9.olb" #import "C:\Program Files\Microsoft Office\Office\graph9.olb" int main(int argc, char* argv[]) { // Since we want to use COM objects, we must initialize the COM //sub-system. VERIFY (SUCCEEDED (CoInitialize (NULL))); // Retrieve the CLSID of the MS Word application. CLSID clsidWordApplication; HRESULT hr = CLSIDFromProgID (L"Word.Application", &clsidWordApplication); _ASSERT(SUCCEEDED(hr)); if (!SUCCEEDED(hr)) return 0; // We introduce this code block, so that all smart pointers get //destroyed before // this block is left. If we didn't do this, some of our smart //pointers would still // be alive when we call CoUnitialize at the end of main, which would //cause memory // access violations. { Word::_ApplicationPtr spWordApplication; try { // Create the Word application object. If Word isn't running //already, this // will launch Word as background process. VERIFY (SUCCEEDED (spWordApplication.CreateInstance (clsidWordApplication, NULL, CLSCTX_SERVER))); if (!(bool) spWordApplication) throw _com_error (E_FAIL); // Retrieve the documents collection from the Word application. //This collection contains // all documents that are open at the moment. We need this //collection in order to // add a new document to it (this means we create a new //document). Word::DocumentsPtr spDocuments = spWordApplication->GetDocuments(); if (!(bool) spDocuments) throw _com_error (E_FAIL); Word::_DocumentPtr spNewDocument = spDocuments->Add (); if (!(bool) spNewDocument) throw _com_error (E_FAIL); // We add a new chart to the document. To be able to do this we //must retrieve the // collection of so called 'inline shapes'. Inline shapes are //basically such things // like pictures, charts, or any other linked objects. Word::InlineShapesPtr spInlineShapes = spNewDocument->GetInlineShapes (); if (!(bool) spInlineShapes) throw _com_error (E_FAIL); // Retrieve the CLSID of the MS Chart object. CComBSTR strClassNameChart (L"MSGraph.Chart"); VARIANT Temp; Temp.vt = VT_BSTR; Temp.bstrVal = strClassNameChart.Detach (); VARIANT ChartObjectShouldBeLinkedToAnExternalFileVARIANT; ChartObjectShouldBeLinkedToAnExternalFileVARIANT.vt = VT_BOOL; ChartObjectShouldBeLinkedToAnExternalFileVARIANT.boolVal = VARIANT_FALSE; Word::InlineShapePtr spNewInlineShape = spInlineShapes->AddOLEObject (&Temp, &vtMissing, &ChartObjectShouldBeLinkedToAnExternalFileVARIANT); // We want to access the new inline shape via the correct //interface. Graph::ChartPtr spChart = spNewInlineShape->OLEFormat->Object; if (!(bool) spChart) throw _com_error (E_FAIL); // Configure the chart. spChart->ChartType = Graph::xl3DColumnClustered; spChart->HasLegend = VARIANT_TRUE; spChart->HasTitle = VARIANT_TRUE; spChart->ChartTitle->Text = _bstr_t (L"translator's sensitivity to sentence lengthes"); spChart->Width = 600.00; // spChart->AutoScaling= VARIANT_TRUE; // Create a data sheet that contains the data that will be shown //in the chart. // This is the place where you have to provide your own data. For //this example I // will use random generated data to fill the data sheet. Graph::DataSheetPtr spDataSheet = spChart->Application->DataSheet; if (!(bool) spDataSheet) throw _com_error (E_FAIL); spDataSheet->Cells->Clear (); // Set the column and row names. spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)1), _variant_t ("translation NIST score")); spDataSheet->Cells->PutItem (_variant_t ((BYTE)1), _variant_t ((BYTE)2), _variant_t ("0-20")); spDataSheet->Cells->PutItem (_variant_t ((BYTE)1), _variant_t ((BYTE)3), _variant_t ("20-25")); spDataSheet->Cells->PutItem (_variant_t ((BYTE)1), _variant_t ((BYTE)4), _variant_t ("25-30")); spDataSheet->Cells->PutItem (_variant_t ((BYTE)1), _variant_t ((BYTE)5), _variant_t ("30-35")); spDataSheet->Cells->PutItem (_variant_t ((BYTE)1), _variant_t ((BYTE)6), _variant_t ("35+")); // Fill the cells with some data from file. int x[100]; ifstream inf("c:\\my.txt"); for (int i=0; i<5; i++ ) inf>>x[i]; spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)2), _variant_t ((long)x[0])); spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)3), _variant_t ((long)x[1])); spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)4), _variant_t ((long)x[2])); spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)5), _variant_t ((long)x[3])); spDataSheet->Cells->PutItem (_variant_t ((BYTE)2), _variant_t ((BYTE)6), _variant_t ((long)x[4])); spChart->Application->Update (); spChart->Application->Quit (); spNewDocument->Save (); --------------------------------------------------- spWordApplication->Quit (); } catch (...) { // Close the applications, if they are running. if ((bool) spWordApplication) spWordApplication->Quit (); } } CoUninitialize(); printf ("Finished!\n"); return 0; } my problem is in "spNewDocument->Save()" which opens a savefile dialog and save the spNewDocument in user-chosen path and with a name which user gives it. Tag: COM files Tag: 268921
  - 24
    - mixed mode dll usage Hi! I`m having some trouble finding information about using mixed-mode dll in asp.net. What do I need to do in the mixed-mode dll to export the managed functions and what do I need to do in the C#/ASP.NET code in order to use them? Thanks in advance. Elad. Tag: COM files Tag: 268874
  - 25
    - MFC Projects See my website for MFC Projects. Download source for FREE http://www.mfc.neuralnetworks.in Tag: COM files Tag: 268861

Is there a way to compile COM files (instead of EXE) in VC++?

Thank you.

Re: COM files by Ajay

Ajay
Wed Sep 20 15:36:26 CDT 2006

> Is there a way to compile COM files (instead of EXE) in VC++?
>

Not sure what exactly you mean but you can make a COM server(a DLL) in
VC++ using different technologies. Typically you will use ATL but you
can also use MFC as well or a combination.

Is that what you were asking?
---
Ajay

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Re: COM files by Heinz

Heinz
Wed Sep 20 16:57:35 CDT 2006

<mike7411@gmail.com> schrieb im Newsbeitrag
news:1158783965.783067.152720@k70g2000cwa.googlegroups.com...
> Is there a way to compile COM files (instead of EXE) in VC++?

You can compile .C or .CPP files, but no .COM files. Or do you want to
compile C|CPP into a .COM file?

.COM files are 16 bit apps, VC++ 2 and later are compilers for 32 bit apps,
so - no, there's no way. (Even with old 16 bit compilers you cannot compile
to .COM files directly. You could only strip anything from an .EXE which
didn't belong into a .COM with tools like exe2bin.)

Heinz

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Re: COM files by Vladimir

Vladimir
Mon Sep 25 11:19:03 CDT 2006

In some old C-compilers there is a so-called TINY memory mode which is used
to build .COM files.

Vladimir Grigoriev

<mike7411@gmail.com> wrote in message
news:1158783965.783067.152720@k70g2000cwa.googlegroups.com...
> Is there a way to compile COM files (instead of EXE) in VC++?
>
> Thank you.
>

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