how to convert CString to String^

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  - 1
    - All VS2005's faults... :) Whenever Trying to debug an exe in VS2005 IDE, it keeps popping up an error: "The procedure entry point _snprintf_s could not be located in the dynamic link library MSVCR80.dll" Note that the exe is built in Debug mode. Thanks, DH Tag: how to convert CString to String^ Tag: 265125
  - 2
    - SSH connections Is there any kind of support for SSH connections in VC++? Tag: how to convert CString to String^ Tag: 265124
  - 3
    - Empty manifest file In a build of a service COM module, the following error are generated during linking: ... Linking... LIBCMT.lib(ftol2.obj) : error LNK2005: __ftol2 already defined in WMStubDRM_34119.lib(ftol2.obj) MSVCRT.lib(MSVCR80.dll) : error LNK2005: _free already defined in LIBCMT.lib(free.obj) MSVCRT.lib(MSVCR80.dll) : error LNK2005: _malloc already defined in LIBCMT.lib(malloc.obj) MSVCRT.lib(ti_inst.obj) : error LNK2005: "private: __thiscall type_info::type_info(class type_info const &)" (??0type_info@@AAE@ABV0@@Z) already defined in LIBCMT.lib(typinfo.obj) MSVCRT.lib(ti_inst.obj) : error LNK2005: "private: class type_info & __thiscall type_info::operator=(class type_info const &)" (??4type_info@@AAEAAV0@ABV0@@Z) already defined in LIBCMT.lib(typinfo.obj) LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library ..\..\bin\MyService.exe : fatal error LNK1169: one or more multiply defined symbols found Then I added the Command Line option, "/FORCE", the service module finishes it linking (and the service can be started manually), but gives the warnings: ... Generating Code... Linking... LIBCMT.lib(ftol2.obj) : warning LNK4006: __ftol2 already defined in WMStubDRM_34119.lib(ftol2.obj); second definition ignored MSVCRT.lib(MSVCR80.dll) : warning LNK4006: _free already defined in LIBCMT.lib(free.obj); second definition ignored MSVCRT.lib(MSVCR80.dll) : warning LNK4006: _malloc already defined in LIBCMT.lib(malloc.obj); second definition ignored MSVCRT.lib(ti_inst.obj) : warning LNK4006: "private: __thiscall type_info::type_info(class type_info const &)" (??0type_info@@AAE@ABV0@@Z) already defined in LIBCMT.lib(typinfo.obj); second definition ignored MSVCRT.lib(ti_inst.obj) : warning LNK4006: "private: class type_info & __thiscall type_info::operator=(class type_info const &)" (??4type_info@@AAEAAV0@ABV0@@Z) already defined in LIBCMT.lib(typinfo.obj); second definition ignored LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library ..\..\bin\MyService.exe : warning LNK4088: image being generated due to /FORCE option; image may not run WMStubDRM_34119.lib(gs_support.obj) : warning LNK4254: section '.CRT' (40000040) merged into '.data' (C0000040) with different attributes LIBCMT.lib(crt0init.obj) : warning LNK4253: section '.CRT' not merged into '.rdata'; already merged into '.data' Embedding manifest... ... In both above cases, the generated manifest file is empty with no dependancy info contained at all, as below: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1"> </assembly> Do some people know what's cause of the problem? Thanks, DH Tag: how to convert CString to String^ Tag: 265123
  - 4
    - CCcomBSTR to vector<DWORD> hi [VC++ 6] I receive values from an another application as a com string: "234,454,567,5676756, etc... " And i need to store the values as DWORDs in an array, preferably a vector<DWORD> . What would be the faster way of doing this ? thank you Tag: how to convert CString to String^ Tag: 265122
  - 5
    - static library Error 1 error LNK2005: _printf already defined in libcmtd.lib(printf.obj) MSVCRTD.lib Error 2 error LNK2005: _free already defined in libcmtd.lib(dbgheap.obj) MSVCRTD.lib Error 3 error LNK2005: _malloc already defined in libcmtd.lib(dbgheap.obj) MSVCRTD.lib Error 4 error LNK2005: "private: __thiscall type_info::type_info(class type_info const &)" (??0type_info@@AAE@ABV0@@Z) already defined in libcmtd.lib(typinfo.obj) MSVCRTD.lib Error 5 error LNK2005: "private: class type_info & __thiscall type_info::operator=3D(class type_info const &)" (??4type_info@@AAEAAV0@ABV0@@Z) already defined in libcmtd.lib(typinfo.obj) MSVCRTD.lib Error 6 error LNK2005: __vswprintf already defined in libcmtd.lib(vswprint.obj) MSVCRTD.lib Error 7 error LNK2005: _sprintf already defined in libcmtd.lib(sprintf.obj) MSVCRTD.lib Error 8 error LNK2005: _wcschr already defined in libcmtd.lib(wcschr.obj) MSVCRTD.lib Error 10 fatal error LNK1169: one or more multiply defined symbols found d:\wf\integration\test4\InitialIntegration-Lib\InitialIntegration\CAAgent\D= =ADebug\DeviceAccessMonitoring.dll 1 Error 12 error LNK2019: unresolved external symbol "public: __thiscall CDeviceAccessMonitor::CDeviceAccessMonitor(void)" (??0CDeviceAccessMonitor@@QAE@XZ) referenced in function "int __cdecl StartServiceThread(void)" (?StartServiceThread@@YAHXZ) InitCAApp.obj Error 13 fatal error LNK1120: 1 unresolved externals d:\wf\integration\test4\InitialIntegration-Lib\InitialIntegration\CAAgent\D= =ADebug\InitCAApp.exe 1 I am creating several projects with static library. When i finally make an executable using this static libraries. I am getting the above errors. What is the basic fundamental of using the static library in right way? Tag: how to convert CString to String^ Tag: 265112
  - 6
    - Runtime error 6034 again Thanks to Alex and Viviana for their help! Unluckily I am still struggling with the runtime error 6034. The annoying thing is the error message keeps saying that "...You need to modify your applications to build with a manifest." Does this mean that I miss some steps when I build my binaries? Yes, I did have all the manifests for each module of my binaries embeded. Thus I remove all these from the folder of the exe/app. "- I deploy the whole content of the directory Microsoft Visual Studio 8\VC\redist\x86\Microsoft.VC80.CRT (meaning the dlls and the corrsponding manifest) into the application directory, at the same level with my exes." I tried this both ways, 1. Copied all files inside the folder, ...\VC\redist\x86\Microsoft.VC80.CRT, into the folder of the exe (at the same level). 2. Copied the folder of "...\VC\redist\x86\Microsoft.VC80.CRT" into the folder of the exe. Both give me the same runtime error - 6034. Another thing I did is since I compiled all modules in Debug mode, thus, I copied the folder of "...\VC\redist\x86\Microsoft.VC80.DebugCRT", plus "...\VC\redist\x86\Microsoft.VC80.DebugMFC." By the way, can we avoid using such deployment scheme with 2005, or is there a way we just do it like in 2003? Thanks again, DH Tag: how to convert CString to String^ Tag: 265111
  - 7
    - date and time What is the simplest and most user-friendly way to enable someone to specify a date and time in VC++? Thank you. Tag: how to convert CString to String^ Tag: 265108
  - 8
    - VS 2005 and Manifest for runtime dlls Hi all, I'm having some problems with Visual Studio 2005 and even though I read everything I could find in MSDNL I still couldn't find the answer. Mainly my problem is that even though the manifest needed for the MS runtime library is embedded into the binary the C:\Program Files\Microsoft Visual Studio 8\VC\redist\x86\Microsoft.VC80.CRT\Microsoft.VC80.CRT.manifest is still needed. Detailed: I did the following steps: 1) New Project -> Win32 Console Application -> Empty project 2) Add new .cpp file with some code (as easy as possible), eg: #include <stdio.h> void main() { printf("MOMO"); } 3) Build the project in Release 4) Open the built .exe in the Visual Studio IDE (File -> Open -> File) => we can see the RT_MANIFEST being indeed 1, as suggested by MSDNL, which means the manifest is embedded into the binary. 5) Copy this new binary, eg coco.exe on a Windows XP system with no Visual Studio installed Now there are the following scenarios: a) Run coco.exe on that machine => error "The system cannot execute the specified program.", when run from cmd prompt, or "This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem.", when double-clicked in explorer. Not working might be normal as there are no runtime DLLs b) copy the C:\Program Files\Microsoft Visual Studio 8\VC\redist\x86\Microsoft.VC80.CRT DLLs (msvcp80.dll and msvcr80.dll) on the target machine in the same directory like the coco.exe and try again to run coco.exe => the errors like above. This is what I don't understand. Why isn't this enough taking in account that the manifest is embedded in the binary? c) If I also copy in the exact same directory where the DLLs and coco.exe are the file Microsoft.VC80.CRT.manifest from C:\Program Files\Microsoft Visual Studio 8\VC\redist\x86\Microsoft.VC80.CRT, running coco.exe will work. But doesn't that mean that I have an external manifest? If yes, means this is not what I want, as in MSDNL is stated that having an external manifest is not a good idea as this won't work if you load a DLL via LoadLibrary, so I want the manifest embedded. In other words, can somebody pls: I) explain why the scenario b) is not working II) the C:\Program Files\Microsoft Visual Studio 8\VC\redist\x86\Microsoft.VC80.CRT\Microsoft.VC80.CRT.manifest is always needed? Does this mean external manifest or not? III) what do I need to do in order to deliver on the target machine the DLLs in the same directory where the app is? (not WinSxS, and not a subdirectory of the application directory) Thanks in advance, Viv Tag: how to convert CString to String^ Tag: 265091
  - 9
    - Why can't shift variable ? Hi All, I can't pass this complier: void Boki (unsigned char ABC, unsigned int Data) { Boki_SendData(ABC); Boki_SendData(Data >> 8); //send high byte Boki_SendData(Data); //send low byte } err msg: warning C4761: integral size mismatch in argument; conversion supplied Don't know why error here.... Could you please advice how to fix that ? Thank you very much! Best regards, Boki. Tag: how to convert CString to String^ Tag: 265087
  - 10
    - please say the tips for socket programming hi, i have changed my code like this: sender: ******** //Method for checking any errors to establish connection int Sender::SetAddress(void) { GetAddress(); //connect to the address specified with the socket and check if any error int returnValue=connect(mySocket,(struct sockaddr *)&serverAddress,sizeof(serverAddress)); if(returnValue== INVALID_SOCKET) { returnValue = WSAGetLastError(); cout<<endl<<"Error in Connecting"; CloseSocket(); return 1; } else cout<<endl<<"The connection is ready for communication"; return returnValue; } //Method for storing the data in the buffer for sendning int Sender::GetFileInfo(void) { FILE *filePointer; CString sendFilePath=""; char *fileName,*fileContent,*fileNameLength,*fileSize; unsigned int bytesRead; int valueReturn; fileSize = new char(32); fileNameLength=new char(32); CString findFilePath=filePathInformation+"*.*"; bWorking=finder.FindFile(findFilePath); while (bWorking) { bWorking = finder.FindNextFile(); CString findFileName(finder.GetFileName()); if(findFileName.Compare(".") == 0 || findFileName.Compare("..") == 0) continue; int returnValue=SetAddress(); switch(returnValue) { case 0: sendFilePath=finder.GetFilePath(); filePointer = fopen(sendFilePath, "rb"); if( filePointer == NULL ) { cout<<endl<<"File open error"; CloseSocket(); valueReturn=1; } else { fseek(filePointer, 0, SEEK_END); // Move File Pointer to EOF sizeOfFile=ftell(filePointer); // Get position of File Pointer rewind(filePointer); // Move File Pointer back to beginning of file fileNameSize=findFileName.GetLength(); char *returnChar=ltoa( sizeOfFile, fileSize,10); returnChar=itoa(fileNameSize,fileNameLength,10 ); fileName=new char(fileNameSize); strcpy(fileName,findFileName.GetBuffer(fileNameSize)); fileContent=(char *)calloc(sizeOfFile,sizeof(char)); bytesRead=fread(fileContent,sizeof(char),sizeOfFile,filePointer); int valueReturned=SendData(fileSize,fileNameLength,fileName,fileContent); fclose(filePointer); CloseSocket(); sendFilePath.Empty(); valueReturn=0; } break; case 1: cout<<endl<<"Error in connecting"; CloseSocket(); valueReturn=1; break; } if(valueReturn==1) return valueReturn; /*delete[] fileSize; delete[] fileNameLength; delete[] fileName; free(fileContent);*/ } return valueReturn; } int Sender::SendData(char *fileSize,char *fileNameLength,char *fileName,char *fileContent) { BOOL flag=FALSE; int returnValue = send(mySocket,fileSize,32,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Length"; CloseSocket(); flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Size Sent Successfully : "<<fileSize; } //send file name length returnValue = send(mySocket,fileNameLength,32,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Details"; CloseSocket(); flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Length Sent Successfully : "<<fileNameSize; } //Send the file name returnValue = send(mySocket,fileName,fileNameSize,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending in File Name"; CloseSocket(); flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Name Sent Successfully : "<<fileName; } //sending the file returnValue = send(mySocket,fileContent,sizeOfFile,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Contents"; CloseSocket(); flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Sent Successfully "<< returnValue<<" bytes"; } CloseSocket(); ERRORLABEL: if(flag==TRUE) return 0; else return 1; } void Sender::GetAddress() { //Creating connection to the socket WSADATA wsadata; int r = WSAStartup(MAKEWORD(2,0) , &wsadata); //CREATE SOCKET mySocket = socket (AF_INET, SOCK_STREAM,0); if(mySocket == INVALID_SOCKET) cout<<endl<<"CANNOT OPEN SOCKET TO COMMUNICATE"; //Select the address and file details from .ini file serverAddress.sin_family = AF_INET; //Getting the port details from the ini file CString port=iniFileReader.getKeyValue("PortNumber","ADDRESS_INFORMATION"); portNumber=atoi(port); // storing the Address information in the structure serverAddress.sin_port = htons(atoi(port)); CString IPAddress; IPAddress=iniFileReader.getKeyValue("IPAddress","ADDRESS_INFORMATION"); char *address; int IPAddressLength=IPAddress.GetLength(); address=IPAddress.GetBuffer(IPAddressLength); serverAddress.sin_addr.S_un.S_addr=inet_addr(address); } void Sender::SetIniFileInfo(void) { char filePath[_MAX_PATH] = ""; char * ModuleName = NULL; HMODULE ModuleHandle = NULL; ModuleName = "Receiver.exe"; ModuleHandle = GetModuleHandle(ModuleName); // Retrieve the path of the EXE. long valueReturned=::GetModuleFileName(ModuleHandle, filePath, sizeof(filePath)); char *tempString=strrchr(filePath, '\\' ); if(tempString!=NULL) *tempString='\0'; iniFilePath=filePath; iniFilePath+="\\SenderConfig.ini"; iniFileReader.setINIFileName(iniFilePath); filePathInformation=iniFileReader.getKeyValue("SendFolderPath","FILE_INFORMATION"); } void Sender::CloseSocket(void) { //CLOSE SOCKET AND EXIT closesocket(mySocket); WSACleanup(); } int main(int argc, char* argv[]) { Sender *senderObject=new Sender; senderObject->SetIniFileInfo(); senderObject->GetAddress(); int returnValue=senderObject->GetFileInfo(); if(returnValue==0) cout<<endl<<"File Infromation retreived succesfully"; //delete senderObject; return 0; } Receiver: ********** void Receiver::GetAddress(void) { WSADATA wsadata; int r = WSAStartup(MAKEWORD(2,0) , &wsadata); //CREATE SOCKET mySocket = socket (AF_INET, SOCK_STREAM,0); if(mySocket == INVALID_SOCKET) cout<<endl<<"CANNOT OPEN SOCKET TO COMMUNICATE"; char filePath[_MAX_PATH]; char * ModuleName = NULL; HMODULE ModuleHandle = NULL; ModuleName = "Receiver.exe"; ModuleHandle = GetModuleHandle(ModuleName); // Retrieve the path to the EXE. long valueReturned=::GetModuleFileName(ModuleHandle, filePath, sizeof(filePath)); char *tempString=strrchr(filePath,'\\' ); if(tempString!=NULL) *tempString='\0'; iniFilePath=filePath; iniFilePath+="\\"; iniFilePath+="ReceiverConfig.ini"; //cout<<endl<<iniFilePath; iniReader.setINIFileName(iniFilePath); //assign input values to the address structure serverAddress.sin_family = AF_INET; CString port=iniReader.getKeyValue("PortNumber","ADDRESS_INFORMATION"); portNumber=atoi(port); // storing the Address information in the structure serverAddress.sin_port = htons(atoi(port)); CString IPAddress; IPAddress=iniReader.getKeyValue("IPAddress","ADDRESS_INFORMATION"); char *address; int IPAddressLength=IPAddress.GetLength(); address=IPAddress.GetBuffer(IPAddressLength); serverAddress.sin_addr.S_un.S_addr=inet_addr(address); filePathInformation=iniReader.getKeyValue("SaveFolderPath","FILE_INFORMATION"); } int Receiver::SetAddress(void) { int returnValue; GetAddress(); //check the port number is valid and if it is blocked if(portNumber<=65535 && portNumber>=1024) { returnValue = bind (mySocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress)); if (returnValue==SOCKET_ERROR) { returnValue = GetLastError(); cout<<endl<<" Cannot bind to the port"; return 1; } if((returnValue=listen(mySocket,10))== 0 ) { } else { cout<<endl<<"Error: Port is not Ready for listening"; return 1; } } else { cout<<endl<<"Invalid Port"; return 1; } int serverAddrInfoSize=sizeof(serverAddress); mySocket= accept(mySocket,(struct sockaddr *)&serverAddress,&serverAddrInfoSize ); if(mySocket==INVALID_SOCKET) { CloseSocket(); return 1; } return returnValue; } void Receiver::ReceiveData(void) { int returnValue=-1; int fileNameLength; BOOL flag=FALSE; CString filePath; long fileSize; char *fileContentBuffer,*fileNameBuffer,*fileSizeBuffer,*fileNameSizeBuffer; fileSizeBuffer=(char *)calloc(32,sizeof(long)); fileNameSizeBuffer=(char *)calloc(32,sizeof(int)); do{ int valueReturned=SetAddress(); switch(valueReturned) { case 0: filePath=filePathInformation; //Buffer to store the file size returnValue=recv(mySocket,fileSizeBuffer,32,0); if(returnValue== SOCKET_ERROR) { cout<<endl<<"Error in receiving Data"; flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Size Received : "; } //long valueReturned=_CrtSetBreakAlloc(allocReqNum); fileSize=atol(fileSizeBuffer); cout<<fileSize; //Buffer to store the file name size returnValue=recv(mySocket,fileNameSizeBuffer,32,0); if(returnValue== SOCKET_ERROR) { cout<<endl<<"Error in receiving Data"; flag=FALSE; goto ERRORLABEL; } else { flag=TRUE; cout<<endl<<"File Length Received : "; } //value=_getch(); fileNameLength=atoi(fileNameSizeBuffer); cout<<fileNameLength; //allocate memory for the buffer to store the file name received fileNameBuffer =new char(fileNameLength); returnValue=recv(mySocket,fileNameBuffer, fileNameLength,0); //save the file name if(returnValue != SOCKET_ERROR) { filePath+=fileNameBuffer; cout<<endl<<"File Name Received successfully : "<<fileNameBuffer; } else { cout<<endl<<"Error in Receiving File Name"; flag=FALSE; goto ERRORLABEL; } //value=_getch(); //allocate memory for the buffer to store the file contents received fileContentBuffer =(char *)calloc(fileSize,sizeof(char)); returnValue=recv(mySocket,fileContentBuffer, fileSize,0); if(returnValue != SOCKET_ERROR) { int filePathLength=filePath.GetLength(); char *filePathBuffer=filePath.GetBuffer(filePathLength); int retValue=WriteFileContents(fileSize,filePathBuffer,fileContentBuffer); } //check there is any error in receiving else { cout<<endl<<"Error in Recieving File Contents"; flag=FALSE; goto ERRORLABEL; } //delete fileContentBuffer; //returnedValue=_CrtDumpMemoryLeaks(); filePath.Empty(); break; case 1: cout<<endl<<"Error in connecting"; flag=FALSE; goto ERRORLABEL; break; } ERRORLABEL: if(flag=FALSE) { CloseSocket(); return; } CloseSocket(); /*free(fileContentBuffer); delete[] fileNameBuffer; delete[] fileSizeBuffer; delete[] fileNameSizeBuffer;*/ }while(returnValue!=-1); } int Receiver::WriteFileContents(long fileSize,char *fileName,char *fileContent) { FILE *filePointer=fopen(fileName,"wb"); if( filePointer == NULL ) { cout<<endl<<"File open error"; CloseSocket(); return 0; } else { int bytesWrote=fwrite(fileContent,sizeof(char),fileSize,filePointer); cout<<endl<<"File Received successfully "<<bytesWrote<<" bytes"; fclose(filePointer); } return 1; } void Receiver::CloseSocket(void) { //CLOSE SOCKET AND EXIT filePathInformation.Empty(); closesocket(mySocket); WSACleanup(); } int main(int argc, char* argv[]) { cout<<"test"<<endl; Receiver *receiverObject=new Receiver; receiverObject->ReceiveData(); delete receiverObject; return 0; } seeing this please say the method to do this, sirisha. Tag: how to convert CString to String^ Tag: 265083
  - 11
    - Functor adaptor question I had a case today where I needed a functor that was a bound member function. Basically: class MyClass { ...bug free code omitted... void PrintMe( int x ) { printf( "%d\n", x ); } void A_Function() { ... std::vector<int> myList; ... std::for_each( myList.begin(), myList.end(), bound_mem_fun( *this, PrintMe ); // bound_mem_fun is made up ); } Am I correct in my conclusion that there is no such adapter in the standard library? It looks like there is one in Boost, and it only took about 8 lines of code to implement it, but I don't want to reimplement it if there is one built in that I missed. -- - Tim Roberts, timr@probo.com Providenza & Boekelheide, Inc. Tag: how to convert CString to String^ Tag: 265077
  - 12
    - printing all kind of files hi, I am new to VC++. Are there any functions which can be used to print all kind of files to the printer. I have tried, ShellExecute().. But it is able to print only document files. I am not able to print image files, ppts and some more. I tried with OpenPrinter(), but i dont know how to send all kind of files once we open it. Then I also tried CDC.. With that also between StartDoc() and EndDoc() what should be written for printing? Please give some suggestions... Tag: how to convert CString to String^ Tag: 265076
  - 13
    - Runtime error 6034 I recently convert a solution of several projects from Visual Studio 2003 to 2005. When distributing the binaries I encounter the problem which the exe cannot start. I did put all those DLLs and their manifest files, such as msvcr80.dll and Microsoft.VC80.CRT.manifest, in the same folder (at the same level) of the exe. However when starting the exe, it gives me a runtime error: R6034 An application has made an attempt to load the C runtime library incorrectly. Could people here point out the cause of such a problem? Note: I did build all modules with "Embed manifest" setting to "Yes". And copied all the manifest files for each modules into the same folder of the exe. Thanks! DH Tag: how to convert CString to String^ Tag: 265066
  - 14
    - IOCTL_DISK_CREATE_DISK Hi, I've been tasked with writing the front-end application to a storage array product. One of the features is a setup wizard to initialize/partition/format a new array. I've been looking into the problem and I'm having a hard time figuring out how to get this done. My expectation was that IOCTL_DISK_CREATE_DISK would initialize the disk for me (I haven't got to partitioning or formatting yet). However, after the DeviceIO call executes successfully nothing changes within the Disk Management Snap-In. Shouldn't the disk entry now say "Initialized"? Either the code or my expectations are incorrect =) Here's the code... HANDLE hDevice; BOOL bResult; DWORD junk; hDevice = CreateFile("\\\\.\\PhysicalDrive2", FILE_ALL_ACCESS, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); if (hDevice != INVALID_HANDLE_VALUE) { CREATE_DISK cd; cd.PartitionStyle = PARTITION_STYLE_MBR; cd.Mbr.Signature = 0x28; bResult = DeviceIoControl(hDevice, IOCTL_DISK_CREATE_DISK, &cd, sizeof(cd), NULL, 0, &junk, (LPOVERLAPPED) NULL); CloseHandle(hDevice); } Perhaps the signature field has something to do with the problem. It wasn't clear what I should set it to. I tried 0 and 0x28. Thanks for your help... Tag: how to convert CString to String^ Tag: 265061
  - 15
    - Re: Socket Programming My first reply never arrived in the newsgroup for some reason. It has been > 12 hours since i sent it so i'll just resend. >> I am trying to transfer a folder of files using socket. could anyone >> help me by providing tips to send and receive. I want the files to be >> saved with same file name as sent. anyone help me regarding this, > > For the data communication you can use this as a tutorial. > http://www.codeproject.com/internet/server_client_sockets.asp > > The client has to tell the server to create a new folder. copying the > files is simply done by sending a header that describes the name of the > file and possible other attributes, and then send the file data. > Implement different message types so that you can make a difference > between commands and data. > > Or you could use FTP instead of creating your own mini file transfer > protocol. > > -- > > Kind regards, > Bruno van Dooren > bruno_nos_pam_van_dooren@hotmail.com > Remove only "_nos_pam" > Tag: how to convert CString to String^ Tag: 265059
  - 16
    - Easy way to read out formated string ? Hi Experts: I have a string which will always be in the format below: "<string1><string2><string3>" Any of string1, string2 and string3 could be null, and their lengths is not known. Just wondering, if there is an easy way to parse the whole string and read out string1, string2 and string3 into 3 strings? Thanks for any idea on this! Polaris Tag: how to convert CString to String^ Tag: 265057
  - 17
    - Help is needed to compile C program using Visual Studie 2005 Hi, I need your help. I have a legend C program that works well after it was compiled under Visial Studio 6. Now a new version of Visial Studio 2005, V8 is installed on my machine. And I failed to generate its *.exe file. What I have done is: 1. Create a project under C++; 2. Select 32-bit window console project; 3. Add my *.c files into it. 4. Compile it. Error information: When I included statement: #include "stdafx.h" Error information: Error 1 fatal error C1853: 'Debug\Filter.pch' precompiled header file is from a previous version of the compiler, or the precompiled header is C++ and you are using it from C (or vice versa) c:\0-filter\filter\filter.c 66 Line 66 points --> #include "stdafx.h" When I excluded statement: #include "stdafx.h" Error information: Error 1 fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source? c:\0-filter\filter\filter.c 445 I don't know what to do to correct the situation. Thank you. Weng Tag: how to convert CString to String^ Tag: 265048
  - 18
    - Including only once - What is best practice? What is the best practice to prevent duplication of includes? From what I can see, you can use: #pragma once at the top of included headers, or: #ifndef headerName #define headerName // header stuff here #endif If I create an include file that say needs <windows.h>, is it a best practice to then include that in that header file to sort of document that fact, and use one of the above techniques? If you see what I'm meaning. Hope my noob question was clear enough. Thanks Tag: how to convert CString to String^ Tag: 265041
  - 19
    - file folder transfer using sockets hi, I am trying to transfer a folder of files using socket. could anyone help me by providing tips to send and receive. I want the files to be saved with same file name as sent. anyone help me regarding this, i am closing the old connection, WSAcleanup and creating new socket and getting new connection for every file transfer. at the other end also every time i am accepting the connection before i receive the files. Is the procedure i am following is correct & safe or not? please answer this, sirisha. Tag: how to convert CString to String^ Tag: 265035
  - 20
    - file folder transfer using sockets hi, I am trying to transfer a folder of files using socket. could anyone help me by providing tips to send and receive. I want the files to be saved with same file name as sent. anyone help me regarding this, i am closing the old connection, WSAcleanup and creating new socket and getting new connection for every file transfer. at the other end also every time i am accepting the connection before i receive the files. Is the procedure i am following is correct & safe or not? please answer this, sirisha. Tag: how to convert CString to String^ Tag: 265034
  - 21
    - Hook an installable device driver I use extensively win32 hooks in my application. I have a special library for that and it works fine(its not a standard win32 event hooks, but win32 functions hook). Now I need to hook to an installable device driver ( an acm codec)- to its function, "DriverProc". This is not a standard win32 dll and thus the right way to hook it is to load the driver, get a pointer to this function - DriverProc, and hook it. I'm stack in this stage, how exactly to hook having this pointer in my hands? Does anyone have any idea how to do it? Can someone here direct me please? Thanks in advance. Tag: how to convert CString to String^ Tag: 265033
  - 22
    - First-chance exception in Sender.exe: 0xC0000005: Access Violation. hi i am getting this error while accessing a CString variable in loop. why am i getting this. sirisha. Tag: how to convert CString to String^ Tag: 265031
  - 23
    - Socket Programming hi, I am trying to transfer a folder of files using socket. could anyone help me by providing tips to send and receive. I want the files to be saved with same file name as sent. anyone help me regarding this, sirisha. Tag: how to convert CString to String^ Tag: 265028
  - 24
    - How to suspend operation/threads in VC Hi, I tried stdlib.h sleep(10); to no avail. I need a resolution of millisec range Thx Jack Tag: how to convert CString to String^ Tag: 265022
  - 25
    - command line secure shell I have a command line secure shell program and I would like to write my own program to interact with it. I would like to perform both reading and writing to the secure shell program. Could someone tell me the best way to do this? Thank you. Tag: how to convert CString to String^ Tag: 265013
- Next
  - 1
    - Embedding a resource at runtime Hi there. Does anyone know if it's possible to embed a new resource into an assembly at runtime as well as update an existing (assembly) resource. Any assistance would be appreciated. Thanks. Tag: how to convert CString to String^ Tag: 264983
  - 2
    - Help Using WinDBG Hi, Can any one point me to the specific link of how to use windbg tool properly for debugging complex applications. Example How to track the Access Voilation error from withen the DLL which may use other DLLs. Tracking the addresses of the function in the memory. Tracking which function in which DLL is failing. Tag: how to convert CString to String^ Tag: 264979
  - 3
    - memory leakage in vc++ 6.0 am trying to develop an application to transfer a folder of files using sockets. I have been using a loop to transfer all the files. there are many memory leakage errors found in debugging. how can i solve this? the output is differing. and I am unable to find the exactly where is the error in the code. the code for sending is like this : in which i am sending the contents in the order file size, filename size, file name, file contents void Sender::SendData(void) { CString findFilePath=filePathInformation+"\\*.*"; bWorking=finder.FindFile(_T((LPCTSTR)findFilePath)); while (bWorking) { bWorking = finder.FindNextFile(); CString findFileName(finder.GetFileName()); if(findFileName.Compare(".") == 0 || findFileName.Compare("..") == 0) { //CloseSocket(); continue; } int returnValue=SetAddress(); if(returnValue==0) { CString sendFilePath=finder.GetFilePath(); FILE *filePointer; //int returnedValue; if( (filePointer = fopen(sendFilePath, "rb" )) == NULL ) { cout<<endl<<"File open error"; CloseSocket(); return; } else { char *fileContentBuffer; unsigned int bytesRead,fileNameLength; long fileSize; //long allocReqNum; //first send the file size details fseek(filePointer, 0, SEEK_END); // Move File Pointer to EOF fileSize=ftell(filePointer); // Get position of File Pointer rewind(filePointer); // Move File Pointer back to beginning of file fileContentBuffer = (char *)calloc(32,sizeof(long)); //returnedValue=_CrtIsMemoryBlock(fileContentBuffer, 32, &allocReqNum, NULL, NULL); ltoa( fileSize, fileContentBuffer,10 ); int returnValue = send(mySocket,fileContentBuffer,32,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Length"; CloseSocket(); return; } else cout<<endl<<"File Size Sent Successfully : "<<fileSize; //long valueReturned=_CrtSetBreakAlloc(allocReqNum); //delete fileContentBuffer; free(fileContentBuffer); //send file name length fileNameLength=findFileName.GetLength(); fileContentBuffer = (char *)calloc(32,sizeof(int)); char *returnChar=itoa( fileNameLength, fileContentBuffer, 10 ); returnValue = send(mySocket,fileContentBuffer,32,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Details"; CloseSocket(); return; } else cout<<endl<<"File Length Sent Successfully : "<<fileNameLength; free(fileContentBuffer); //delete fileContentBuffer; //Send the file name char *temporaryBuffer; fileContentBuffer = (char *)calloc(255,sizeof(char)); temporaryBuffer=findFileName.GetBuffer(fileNameLength); strcpy(fileContentBuffer,temporaryBuffer); returnValue = send(mySocket,fileContentBuffer,fileNameLength,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending in File Name"; CloseSocket(); return; } else cout<<endl<<"File Name Sent Successfully : "<<temporaryBuffer; free(fileContentBuffer); //delete fileContentBuffer; //sending the file fileContentBuffer = (char *)calloc(fileSize,sizeof(char)); bytesRead=fread(fileContentBuffer,sizeof(char),fileSize,filePointer); returnValue = send(mySocket,fileContentBuffer,fileSize,0); if(returnValue == SOCKET_ERROR) { cout<<endl<<"Error in Sending File Contents"; CloseSocket(); return; } else cout<<endl<<"File Sent Successfully "<< returnValue<<" bytes"; //delete fileContentBuffer; free(fileContentBuffer); } //returnedValue=_CrtDumpMemoryLeaks(); fclose(filePointer); CloseSocket(); } else { cout<<endl<<"Error in connecting"; CloseSocket(); return; } } } could u please help regarding this. that would be greatful to me, sirisha. Tag: how to convert CString to String^ Tag: 264965
  - 4
    - Get current windows profile name Hello, What is the Win32 API to obtain current logged in user name or a special unique ID without having to login as adminstrator thank you Tag: how to convert CString to String^ Tag: 264961
  - 5
    - [OT] Google Hates MSDN? Hi All, I understand this is OT, but has anyone else noticed that Google seems to hate the MSDN now? where previously something like sprintf etc would have referenced the MSDN in the top page or so, now the MSDN docs are usually no-where to be found on a google search.??? -- - Mark Randall http://www.temporal-solutions.co.uk "We're Systems and Networks..." "It's our job to know..." Tag: how to convert CString to String^ Tag: 264960
  - 6
    - C++ equivlence of int[][] x.length Hi, In java, you can extract the height and width of an array. In C++, how can u do the same? In java, I do this int width = img[0].length; int height = img.length; Type of img is int[][] Thanks in advance Jack Tag: how to convert CString to String^ Tag: 264955
  - 7
    - Format time Year Month Day hour minute second millisecond How can one format the time in order of increasing precision: Year Month Day hour:min:sec.millisec ie. 2006 6 5 11:40:35.456 Right now I have this setup that results in: Fri May 26 13:03:30.451 struct _timeb g_tstruct; _ftime( &g_tstruct ); fprintf(LogFile, "%.19s.%hu\n", ctime( & ( g_tstruct.time ) ), g_tstruct.millitm ); and have seen that another %s could be used to hold the year found from &g_tstruct[20]. But I haven't been able to find any other formats available. Thanks, Tag: how to convert CString to String^ Tag: 264952
  - 8
    - slider control problem, first control in slider control array could not be set Dear people out there, I cant see through the tomatoes on my eyes, so I ask you to help me overcome my human weakness. I got the following problem: I've got 10 sliderbars in defined an array and assigned the controls to the corresponding ID's. Here some code, if not enough, I give u more // the slider bars DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_1, m_sliderBars[0]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_2, m_sliderBars[1]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_3, m_sliderBars[2]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_4, m_sliderBars[3]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_5, m_sliderBars[4]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_6, m_sliderBars[5]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_7, m_sliderBars[6]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_8, m_sliderBars[7]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_9, m_sliderBars[8]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_10, m_sliderBars[9]); for (i=0; i<10; i++ ) { m_sliderBars[i].SetRange(0, 5000); m_sliderBars[i].SetPos(200); } The problem is, the first sliderbar sets its range between 0 and 100 and the position to 0, no mather what I do. This is not what I want it to do. Is there anything I did not take into account, or do I really have a problem and should look for a doctor checking my eyes. I am desperate, since I dont see, why it wont work. Would anybody show a little mercy and spend a few minutes for me please? Thank you in advance. Tag: how to convert CString to String^ Tag: 264946
  - 9
    - slider control problem, first control in slider control array could not be set Dear people out there, I cant see through the tomatoes on my eyes, so I ask you to help me overcome my fucked up human weakness. I got the following problem: I've got 10 sliderbars in an array and assigned the controls to the corresponding ID's. Here some code, if not enough, I'll give you more. // the slider bars DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_1, m_sliderBars[0]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_2, m_sliderBars[1]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_3, m_sliderBars[2]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_4, m_sliderBars[3]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_5, m_sliderBars[4]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_6, m_sliderBars[5]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_7, m_sliderBars[6]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_8, m_sliderBars[7]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_9, m_sliderBars[8]); DDX_Control(pDX, IDC_SLIDER_COLOR_CHOOSER_10, m_sliderBars[9]); for (i=0; i<10; i++ ) { m_sliderBars[i].SetRange(0, 5000); m_sliderBars[i].SetPos(200); } The problem is, the first sliderbar sets its range between 0 and 100 and the position to 0, no mather what I do, this is not what I want it to do. Is there anything I did not take into account, or do I really have a problem and should look for a doctor checking my eyes. I am desperate, since I dont see, why it wont work. Would anybody show a little mercy and spend a few minutes for me please? Thank you in advance. Tag: how to convert CString to String^ Tag: 264945
  - 10
    - Why fscanf_s does not work ?? Try to debug this code, fscanf_s does not read from an input text file numbers.txt that has 20 integers separated by a space. What I am doing wrong ?? #include <stdio.h> #include "stdafx.h" #include <stdlib.h> #define SIZE 20 /* size of elements in the the sequence of numbers */ int _tmain(int argc, _TCHAR* argv[]) { int array[SIZE]; int i, pass, hold; FILE *fp; /* opens the file in in read only mode */ if(fopen_s(&fp,"d:\\numbers.txt","r")!=0) { printf("Error opening the file\n"); exit(1); } /* load the data in the array */ else { for(i=0;i<=SIZE-1;i++) { fscanf_s(fp,"%d",&array[i]); } } fclose(fp); /* show data */ for(i=0;i<=SIZE-1;i++) { printf("%d ", array[i]); } printf("\n"); return 0; } Tag: how to convert CString to String^ Tag: 264939
  - 11
    - manifests and Vista Beta2 Not sure where the best place for this is as I can't find a 'Vista/programmer' type of newsgroup. I've got a VC 8 MFC application that I've written that installs fine on XP and on Vista Beta2 and runs fine on XP. But when I try to run it on a Vista Beta2 system, it complains that the 'side-by-side configuration is incorrect' and tells me to check the event log. I can't tell much from the event log but it tells me to run the 'sxstrace'. When I try to do that it tells me 'access denied'. Any ideas if this is just a Vista problem or if there's something I need to do with my build/setup so that it'll run on Vista? Thanks! Tag: how to convert CString to String^ Tag: 264938
  - 12
    - Cannot convert from 'Type' to 'const Type&' error with templates Hello, I encountered strange compilation error, so I want to hear what other people say before I blame the compiler. My environment: VC++2005, XP/Win2K. I made helper function, which helps to build predicates for many standard algorithms. The point of the function is that it compares certain member of the class instead of whole class object. Here's the code: --------- //////////////////////////////////////////// // Template class for composition f(g(x)) template<typename F, typename G> class compose_t : public std::unary_function< typename G::argument_type, typename F::result_type > { public: explicit compose_t(const F& f, const G& g) : m_f(f), m_g(g) {} typename F::result_type operator()( const typename G::argument_type& x) const { return m_f(m_g(x)); } private: F m_f; G m_g; }; // Template function to construct compose_t template<typename F, typename G> compose_t<F, G> compose(const F& f, const G& g) { return compose_t<F, G>(f, g); } //////////////////////////////////////////// // Sample class struct X { X(const char* s, int n) : s_(s), n_(n) {} const std::string& GetS() const { return s_; } std::string s_; int n_; }; //////////////////////////////////////////// // Helper function to form arbitrary predicate template < typename T, typename Func, typename Pred > compose_t<std::binder2nd<Pred>, Func> mem_match( const T& val, Func fn, Pred pr = std::equal_to<T>() ) { return compose(std::bind2nd(pr, val), fn); } //////////////////////////////////////////// // int _tmain(int /*argc*/, _TCHAR* /*argv*/[]) { typedef std::vector<X> XVec; XVec v; v.push_back(X("one", 1)); v.push_back(X("two", 2)); v.push_back(X("three", 3)); XVec::iterator it = std::find_if( v.begin(), v.end(), mem_match( std::string("two"), std::mem_fun_ref(&X::GetS) ) ); return 0; } --------- The problem is that mem_match doesn't compile. Compiler issues error C2783: could not deduce template argument for 'Pred'. So, now I tried this one: template < typename T, typename Func > compose_t<std::binder2nd<std::equal_to<T> >, Func> mem_match(const T& val, Func fn) { return compose( std::bind2nd( std::equal_to<T>(), val), fn); } This compiles without any problem, however I cannot control std::equal_to predicate from the outside of mem_match. I cannot specify std::binary_function as template parameter for std::binder2nd, since std::binary_function doesn't have operator() at all, and compiler rightfully complains about it. How can I control predicate for mem_match? Thanks in advance Alex Tag: how to convert CString to String^ Tag: 264936
  - 13
    - OOP problem! Hello, Just to not cause any contreversy: "I understand that class definitions go in headers and method implementations go in CPP files, however to simplify things, I put everything under one listing!" okay! "A_CTR" class derives from "actions" class and "actions" class derives from "components" class. ALSO: "T_CTR" class derives from "transitions" class and "transitions class derives from "components" class. So, its doing like a pyramid, with "components" class at the top, and where "actions" and "transitions" classes are right below "coponents". Further, "A_CTR" class is underneath "actions" and "T_CTR" is under "transitions". I guess this can be better viwed in the code below. Please consider the following code and see question after code: =============================================== class components { public: components(){} components(int Flag); virtual ~components() {} static int FLAG_AllTrueInCase; protected: }; //ADT class actions:public components { public: actions(){} virtual ~actions(){} virtual bool conv_BOOL_INPUT_INTERNAL( int Bool_ID_INPUT1,int Bool_ID_INTERNAL1, IO *io); protected: }; class A_CTR:public actions { public: A_CTR(){} virtual ~A_CTR(){} virtual int SYS_getCnstCount(int i_COunterID)const; virtual void setCounter(int i_CounterID,int i_CountCnst); protected: int iCount1Cnst; int iCount2Cnst; int iCount3Cnst; }; int A_CTR::SYS_getCnstCount(int iCounterID)const { ...other code... return iCount1Cnst; } void A_CTR::setCounter(int iCounterID, int iCountCnst) { ...other code... iCount1Cnst = iCountCnst; } //ADT class transitions:public components { public: transitions(){} virtual ~transitions(){} }; class T_CTR:public transitions { public: T_CTR(){} virtual ~T_CTR(){} virtual bool get_CTR_Ellapsed(int i_CounterID, int i_BranchDest); protected: int iC1CurrentCount; int iC2CurrentCount; int iC3CurrentCount; }; bool T_CTR::get_CTR_Ellapsed(int iCounterID,int iBranchDest) { int xxx; xxx = A_CTR::SYS_getCnstCount(1); /// *** ERROR! *** on this line! } =================================================== What if we are in a method of the T_CTR class and we wish to access a member of the A_CTR class? The following line: xxx = A_CTR::SYS_getCnstCount(1); /// *** ERROR! *** on this line! causes the following error: c:\_DTS_PROGRAMMING\C_PROGRAMMING\vc++\MY_APPS_LAB\XPPLC\WndProc_ClassMethods.h(375): error C2352: 'A_CTR::SYS_getCnstCount' : illegal call of non-static member function I somehow have the feeling I have coded something wrong *again*..... I am looking hard to find the problem, but obviously not hard enough, and furthermore, a book example does the same thing... I don't know what to make of it? Just when I thought that I was getting this classes stuff, I get this! :-) Can someone please tell me what am I doing wrong? *ALL* support appreciated! -- Best regards Robert Tag: how to convert CString to String^ Tag: 264935
  - 14
    - understanding Windows printing Windows or MFC, I'm not sure which.. whatever the code below represents. I want to print text to a label printer. I'd like to center the text in the label and increase the font size over whatever the default is. I don't understand the RECT thing or how to calculate coordinates or use fonts. The code below works and it's pretty simple, I'd like to stay with this scheme if possible (I have similar code elsewhere in the app). I copied it from MSDN, I think. Can someone explain how to use a standard Windows font like Arial 12 and center the text, or point me to a tutorial? Thanks --------------- CDC cdc; HDC hdc; CPrintDialog dlg(TRUE); // Windows Printer Dialog class CString formattedpage; if (dlg.DoModal() == IDOK) { // Create a printer device context (DC) // based on the information // selected from the Print dialog. hdc = dlg.CreatePrinterDC(); ASSERT(hdc); // Attach Device Context object to handle cdc.Attach(hdc); cdc.StartDoc("Pan Label"); // begin a new print job } else { // abort print } RECT rect = {0,0,0,0}; // RECT structure for page cdc.DrawText(formattedpage,&rect,DT_CALCRECT); cdc.StartPage(); formattedpage.Format("STUFF TO PRINT"); cdc.DrawText(formattedpage,&rect,DT_NOCLIP); cdc.EndPage(); cdc.EndDoc(); Tag: how to convert CString to String^ Tag: 264934
  - 15
    - IViewObject::Freeze hi Im confused with calling IViewObject::Freeze. What am i suposed to pass for the second parameter ? DWORD key=0; HRESULT hr = m_pView->Freeze(DVASPECT_CONTENT, 0, NULL, &key); Freeze returns -2147467263 thanks Tag: how to convert CString to String^ Tag: 264932
  - 16
    - Form resource files Hi there. I apolgize for posting this again (from June 2nd) but I've been researching for many days now with no success. I have an app that will be reading arbitrary ".resx" or "resources" files passed on the command line for instance. Given only a resource file IOW, does anyone know: 1) How the app can determine if the passed resource file contains (localized) form resources (i.e., it stores a form) 2) If it does contain (localized) form resources, how can I then generate that form dynamically Note that the native .NET utility "Winres.exe" is able to do this but I can't figure out how (not without using techniques that appear to be undocumented). Any help would be greatly appreciated. Thanks. Tag: how to convert CString to String^ Tag: 264931
  - 17
    - Visual C/C++ 6.0. Using SEH I'm facaing a problem in using SEH (structured exceptions handling) in VC 6.0. Please, create (using Visual C/C++ 6.0) an Empty Console application. Use following source to build the application: -------------------------------- class A { public: operator const __int64() const { return 33i64; // random number } }; inline bool operator!=(const A& val1, const __int64 val2) { return false; // doesnt matter what it returns } static A g_a; bool func() { __try { return (g_a != 0i64); } __finally { } return 0; } void main(void) { // Check the returned value bool bRetVal = func(); } // Place a breakpoint here and check the value of bRetVal. -------------------------------- Run the application and check the value returned by func(). In my case it is 24, but it should be false <zero>. Actually (after number of tests) I found that it is a random number. Can somebody, please, explain what is goig on? This code should be working, or I should get a compiler error. I'm not looking for workaraoung. I just want to understand - am I wrong, or there is something with the compiler. Thank you !!! * I've tried the same source using VC 2003 and it works fine. Tag: how to convert CString to String^ Tag: 264919
  - 18
    - Get filename and path of a file selected on the desktop Hi, Is there a way to obtain a filename and path (or just a handle of a file, but without knowing its name nor path) of a file(s) selected on the desktop (with LEFT click). As far as I know there's no such api function. "Shell extensions on right click" are NOT what I'm looking for... When I click a file in any window, Explorer runs a few functions like ReadFile, CreateFile and in some magical way gets it's name and path. I searched the web but with no luck. I could make a filesystem hook and intercept calls on functions like ReadFile or CreateFile, but I would need only those calls, that are made when I select one or more files in a Explorer window. And that is what I am not able to do, because of my lack of knowlegde on that topic. If you can, please help Tag: how to convert CString to String^ Tag: 264917
  - 19
    - Map, Vector and List What are the major differences between these stl classes/objects? Thanks Jack Tag: how to convert CString to String^ Tag: 264906
  - 20
    - how to turn jpgs to vector Hi, Are there any handy ways like GDI+ to convert between jpgs and vector formats? Linux platform equvilence is appreciated too Thanks Jack Tag: how to convert CString to String^ Tag: 264902
  - 21
    - std::string question How do I convert an integer to std::string? Thanks Jack Tag: how to convert CString to String^ Tag: 264900
  - 22
    - how to record and save extracted audio in vc++ hi all, I have a video format(.cam) and audio files are stored in it.I can able to extract and play audio using waveout funtions in wave class. I would like to save the extracted audio in .wav format. how to do this.do i need to add any class like waveIn I saw the following code to record wav file. // Uses the MCI_OPEN, MCI_RECORD, and MCI_SAVE commands to record and // save a waveform-audio file. Returns 0L if successful; otherwise, // it returns an MCI error code. DWORD recordWAVEFile(DWORD dwMilliSeconds) { UINT wDeviceID; DWORD dwReturn; MCI_OPEN_PARMS mciOpenParms; MCI_RECORD_PARMS mciRecordParms; MCI_SAVE_PARMS mciSaveParms; MCI_PLAY_PARMS mciPlayParms; // Open a waveform-audio device with a new file for recording. mciOpenParms.lpstrDeviceType = "waveaudio"; mciOpenParms.lpstrElementName = ""; if (dwReturn = mciSendCommand(0, MCI_OPEN, MCI_OPEN_ELEMENT | MCI_OPEN_TYPE, (DWORD)(LPVOID) &mciOpenParms)) { // Failed to open device; don't close it, just return error. return (dwReturn); } // The device opened successfully; get the device ID. wDeviceID = mciOpenParms.wDeviceID; // Begin recording and record for the specified number of // milliseconds. Wait for recording to complete before continuing. // Assume the default time format for the waveform-audio device // (milliseconds). mciRecordParms.dwTo = dwMilliSeconds; if (dwReturn = mciSendCommand(wDeviceID, MCI_RECORD, MCI_TO | MCI_WAIT, (DWORD)(LPVOID) &mciRecordParms)) { mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); return (dwReturn); } // Play the recording and query user to save the file. mciPlayParms.dwFrom = 0L; if (dwReturn = mciSendCommand(wDeviceID, MCI_PLAY, MCI_FROM | MCI_WAIT, (DWORD)(LPVOID) &mciPlayParms)) { mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); return (dwReturn); } if (MessageBox(hMainWnd, "Do you want to save this recording?", "", MB_YESNO) == IDNO) { mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); return (0L); } // Save the recording to a file named TEMPFILE.WAV. Wait for // the operation to complete before continuing. mciSaveParms.lpfilename = "tempfile.wav"; if (dwReturn = mciSendCommand(wDeviceID, MCI_SAVE, MCI_SAVE_FILE | MCI_WAIT, (DWORD)(LPVOID) &mciSaveParms)) { mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); return (dwReturn); } return (0L); } if I add this code in wav.cpp,i got errors Please give me suggestions and ideas.. help me Regards, Sangeet Tag: how to convert CString to String^ Tag: 264899
  - 23
    - C++ Vs C# Anyone can point out the adavtages of C++ over C# in the 2005 Edition? Tag: how to convert CString to String^ Tag: 264897
  - 24
    - MScomm control faster or ReadFile faster? Hi All, It seems that we can use MScomm control or ReadFile (com_handle, fifo_buffer, 254, &read, 0) to read com port data. Which one is faster ? P.S could you please advice how to add mscomm control to project? Best regards, Boki. Tag: how to convert CString to String^ Tag: 264895
  - 25
    - How to know how many bytes in buffer? Hi All, In VB, we can use "MSComm1.InBufferCount" to get the count of uart buffer. Could you please advice how to do that in VC? Thank you very much! Best regards, Boki. Tag: how to convert CString to String^ Tag: 264890

Hi can someone tell me how to convert a CString data into String ^

thanks

RE: how to convert CString to String^ by Stick

Stick
Thu Jun 08 18:30:02 CDT 2006

"sweetpea" wrote:

> Hi can someone tell me how to convert a CString data into String ^

To convert a C++ (String) string to a old-style cstring, use the c_str()
string member function. For example:

#include <iostream>
#include <cstring>

using namespace std;

// An array of char (ie an old style c-string)
char c_style[100];

// A c++ string object
std::string a_string("Something");

int main( )
{
strcpy(c_style, a_string.c_str());
std::cout << "c_style: " << c_style << '\n';
return (0);
}

The strcpy() function is deprecated, and I'm not sure now what replaces it,
but at least I could help you with this much. I'm a noob, so if this is
wrong, someone will correct me I'm sure.

Patrick

Top

Re: how to convert CString to String^ by Mark

Mark
Fri Jun 09 02:25:41 CDT 2006

String^ gcString = new String(yourCString);

--
- Mark Randall
http://www.temporal-solutions.co.uk

"We're Systems and Networks..."
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"sweetpea" <sweetahpea26@yahoo.com> wrote in message
news:u6xMe$0iGHA.4344@TK2MSFTNGP05.phx.gbl...
> Hi can someone tell me how to convert a CString data into String ^
>
>
> thanks
>

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