File IO

 

 

C++ VB6  
create a file

ofstream myfile("output.txt");

Open FileName For Output As #1

creates a file if it does not exist
read a file

ifstream myfile("output.txt");

Open FileName For Input As #1

open file for read

istream_iterator<string> DataBegin(InFile);

istream_iterator<string> DataEnd;

while( DataBegin != DataEnd ) {

  strFileData += *DataBegin;

  DataBegin++;

}

string = Input(LOF(1), #1)

 

 

 

 

 

read entire file into string

 

 

 

While Not EOF(1)

  Line Input #1, NewLine

Wend

read file line by line
write to a file
ofstream myfile("output.txt");

Open FileName For Output As #1

open file for write

myfile << "This is a line.\n";

Print #1, anewline

write a new line to file
  Put #1, string write entire string to file
close a file

myfile.close();

Close #1

close and save file