Check if file existe, get temporary file name?

[TPN]

How to check if file existe (not by trying to open it, fail : not existe or not) How to get the temporary file name which is not coincide with existing files.

[Hari Krishnan Noida]

Hi, 1. Check File exists CFileFind chkFileExistence; if(chkFileExistence.FindFile(strFileName)) { //File exists }else{ //File does not exists } 2. Creating Temporary File Name You can use different methods to create a temporary file name. My suggestion, try to create a file name with Date & Time. Hope this helps. regards ~Hari~

[TPN]

Any more question : How to check if file existe in VB? Thank you for your fast reply.

[MAAK]

to check if a file exist you can use the shell function

BOOL PathFileExists(
    LPCTSTR pszPath
    );

it takes the file path and return 1 if it exist and 0 if not for temporary files, there is the function

UINT GetTempFileName(
  LPCTSTR lpPathName,      // directory name
  LPCTSTR lpPrefixString,  // file name prefix, first three letters is taken only
  UINT uUnique,            // integer
  LPTSTR lpTempFileName    // file name buffer
);

which can be used to generate temporary file names. The temporary path is formed like this lpPathName+'\'+lpPrefixString+[uUnique as hexadecimal] + ".tmp" and returned in the lpTempFileName for e.g if the path is c:\ and the unique integer is 10 and the prefix is "fil" the result will be c:\fil000A.tmp. The uUnique parameter should have a unique integer value but if you passed 0 the system will assign this unique value.

[TPN]

Thanks so much. That is all I need.

[David Crow]

TPN wrote: How to check if file existe (not by trying to open it, fail : not existe or not) You can use _access() or CFile::GetStatus(). TPN wrote: How to get the temporary file name which is not coincide with existing files. Use GetTempFileName().

[lob]

Here's how you check if file exists : CFileFind fileCheckExistance; CString strPath = "C:\\Test\\myfile.exe"; if ( fileCheckExistance.FindFile( strPath ) ) AfxMessageBox("File exists !"); else AfxMessageBox("File doesnt exist.");