C / C++ / MFC

#pragma once
#include "afxwin.h"

class MyProjDlg: public CDialog{
   //construction
   public:
           .....
   //implementation
   protected:
           .....

   public:
	afx_msg void OnAdd();
	afx_msg void OnDelete();
	afx_msg void OnShow();
	void setter(LPSTR str);  //here is the function I manually added...
	CListBox ListVar;
};

void setter(LPSTR str) {
        //to keep things simple, messagebox is hown here..
	MessageBox(NULL,str,"",NULL);
}

LPSTR str = "Rumble in the Bronx"
for (int i=0; i<5; i++) {
     setter(str);
}

#define macro_encrypt (int) Byte + 25
#define macro_decrypt (int) Byte - 25

void fn_Decrypt()
{
    char oldFilename[200];
    char newFilename[200];

    cout << "Enter Filename:   ";
    cin >> oldFilename; cout << endl;
    cout << "Enter new Filename:   ";
    cin >> newFilename; cout << endl;

    ifstream infile;
    ofstream outfile;
    char Byte;

    infile.open(oldFilename, ios::in | ios::binary);
    outfile.open(newFilename, ios::out | ios::binary);

    while (!infile.eof())
    {
        char NewByte;

        Byte = infile.get();

        NewByte = macro_decrypt;

        outfile.put(NewByte);
    }

    infile.close();
    outfile.close();
    fn_start();

}

hello encryption

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hello encryptionÿæ