how to open a file w\o memo1

[cyprus106]

hey! i need to open a file, read a string from it, save it and close it... i know ABOUT using fopen, but dont really know the procedure.
what i really need to do is save. i need to save a line from edit1->Text to a file, but i cant put it into a memo and then save it, like i did before. i REALLY need help cause i dont even know where to start.

thanks in advance! Cyprus

 

[2ffat]

[tab]There are numerous ways to do this. My favorite is to use iostreams. You will need to add

#include <fstream>

after

#pragma hdrstop

at the top of your file. Then when you need to open the file for reading by doing something like this:

ifstream MyFile; // stream set up
MyFile.open("\Mydirectory\MyFile.txt"); // opening file for reading

if (!MyFile)
{
    // Something went wrong since the stream didn't open
    Application->MessageBox("Could not open file for processing!", "File Error", MB_OK);
}
else
{
    string Something; // variable to hold what is in the file
    MyFile >> Something;
    // Process Something
}

MyFile.close();

You could also use getline instead of >>. A quick word of caution: There is a bug in BCB 5 and Borland 5.5. Get the patch before using getline! With getline, you could get the whole file in a while loop.

// get each line for processing
while (getline(MyFile, Something, '\n'))
{
    // Process Something here
}

[tab]For output you call ostream instead of istream. Any good book on the standard libraries can help.

James P. Cottingham

I am the Unknown lead by the Unknowing.
I have done so much with so little
for so long that I am now qualified
to do anything with nothing.