Hi i want to overwrite the content(object) in a specific file i have set the position but it always add to the end of the file Code int InputIO::editPatient(int location,Obj P){ int positon=location*sizeof(P); f.open("File.dat",ios::in|ios::out|ios::app|ios::binary|ios::ate); f.seekp(0,ios::beg); f.see...
I need to Erase the file contents from a selected Point (C++ fstream) which function should i use ? i have written objects , i need to delete these objects in middle of the file ...
I want to convert val.ElementAt(i) to float value : float *d = new float[NMAX]; char *buffer = new char[128]; CStringArray val; //adding some values to val buffer = (LPSTR)(LPCSTR)val.ElementAt(i).GetBuffer(); d[i] = atof(buffer); as the result in d[i] I have just part of the value(if it was 55 in d is - 5, 666 - 6 ...), help ...
I have written a simple single threaded client server application in Visual C++. When I run my server I wait for some time that it accepts some request from the client. When I connect the client to the server. The log message on the client reports 14 bytes are send and there is no message on the server. I have written a print statement ...
Hi All, I've the following class definitions in exe and dll. // A.exe: Class A { void fun() { B* b = new B(); b.funx(); } // B.dll: Class B { void funx (void) { C* y = new C(); y.funy(); } Class C { void funy() { } } Lets say I change the size of class B, should i recompile A.exe? And should I recompile A.exe even if I change size...
I am getting this his warning but all functions working properly . what does this really means? 'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. ...
Can anyone tell me how to implement Binary tree using C++ STL set. I have implemented binary tree using structures in C and class in C++ struct binary { int node; struct binary *left; struct binary *right; }; I am not sure about how to implement it using STL set. Actually I don't know how to to represent left and right in...
i am using visual c++ 2010 can i run this code? what should i add to visual studio? ...
I am developing a Windows application that will live in the system tray. The application can be enabled/disabled by the user. Whenever the user enables it, it needs to listen/sniff HTTP traffic and add a specific HTTP header on all outgoing packets. I think it can be done by changing the system or browser settings to be localhost:my_po...
I am working to reduce the build time of a large Visual C++ 2008 application. One of the worst bottlenecks appears to be the generation of the PDB file: during the linking stage, mspdbsrv.exe quickly consumes available RAM, and the build machine begins to page constantly. My current theory is that our PDB files are simply too large. How...
I have a MS Visual C++ 2005 project where I am trying to have a main dialog box with a section devoted to displaying selectable subform dialogs boxes. Each subform will be of the same size but have a different layout. The selection is performed using a combo-box control. I searched on the best way to implement this functionality and I...
[ Add HTTP:// to the beginning of picture links to make them work for you. ] [ All Steps here were done with both Release and Debug versions. The pictures shown only display debug-related information. ] OpenCV 2.1.0 does not work properly with Visual Studio 2010 on my computer when it begins to load _Video files with the opencv_ffmpeg D...
I have two projects within one solution. Both projects contain some files that are the same. For instance, Project1 contains shared.cpp and so does Project2. However, when I edit shared.cpp and build both projects, is there any way I can make VC++ compile the source file once, then use the single object file in the linking of the two pro...
Hello, I have bunch of native C++ objects and classes contains DTL maps, maps of maps and lists and vectors. I need to call managed C++ functions from C++ native code and need to pass these native objects and STL containers(lists,maps , maps of maps) to C++/CLI. It needs to marshal or some how serialize these objects. How can I do that...
I get this error: ...\visual studio 2010\Projects\SDLT\Debug\SDLT.exe not found or not built by the last incremental link; performing full link I have include, library, and additional file dependencies setup but I keep getting the link error. For include: C:\SDL-1.2.14\include;C:\SDL-1.2.14\SDL_image-1.2.10\include; For libraries: C:...
One thing that has always annoyed me in Visual C++ is the fact that, unlike Visual C#, intellisense does not automatically display when a new line (or equals sign, etc) is entered, so I must press Ctrl+Space every time. Is there any way to change this? It has gotten to the point where I have even considered using something like AutoIt t...
Possible Duplicate: The Definitive C++ Book Guide and List I want to learn to program in c++, currently i find difficult to make programs and design a structured one. I want to learn how to develop good logic for the programs , as well as i want to learn all the nuances of c++ language.Please tell me as to what i should do to ...
I have a window with the following properties set int he .rc file: STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_CAPTION | WS_SYSMENU It has an associated class (derived from CDialog) and when I instantiate it, then call that object's DoModal() on it it is not really modal - I can click on the "parent" window. CMyDl...
In C# we have a datatype object which can hold any type of data. Same thing I want to achieve in VC++. Can anyone kindly let me know VC++ equivalent of "Object of C#". IN C#, in the calling appl program (say call.cs) object ob=null; ob=(object)str; funct(ref ob); Here str is empty string. This thing I want to achieve in VC++. ...
I am having a custom grid control, where each cell is entered with values., I need to add a control (checkbox) to the cells of the grid which i wish., Whats the best method to do that? From the custom grid i could get the cell location etc. ...