List of all .txt file [closed]

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Hi I want to write a program that give a path in my system and goes to that path and search in that path and sub-directory of path and list all of .txt file . please help me . thanks .

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The Following code will list all your files in "C:\Windows\System32" directory (SYSDIR for XP system). Add it in your code however you want.

DIR *dir;
struct dirent *ent;
        dir = opendir ("c:\\Windows\\System32");
if (dir != NULL) {

  /* print all the files and directories */
  while ((ent = readdir (dir)) != NULL) {
    printf ("%s\n", ent->d_name);
  }
  closedir (dir);
} else {
  /* Can not open directory */
  perror ("");
  return EXIT_FAILURE;
}

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Create an object of type QDir. This can be used to navigate to the desired folder, e.g. by using dirobj.cd("/mypath/somewhere"). Then use dirobj.entryList(QStringList("*.txt", "*.otherext", ...) to retrieve a list of the files found.