(MFC) Generating Random ASCII Strings

Demonstrates how to generate random us-ascii strings.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkGlobal.h>
#include <CkPrng.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // All Chilkat classes can be unlocked at once at the beginning of a program
    // by calling UnlockBundle.  It requires a Bundle unlock code.
    CkGlobal chilkatGlob;
    bool success = chilkatGlob.UnlockBundle("Anything for 30-day trial.");
    if (success != true) {
        strOut.append(chilkatGlob.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkPrng fortuna;

    bool bDigits;
    bool bLowercase;
    bool bUppercase;

    // Generate random strings having only lowercase chars (a-z)
    // Disallow digits and uppercase and only allow lowercase
    bDigits = false;
    bUppercase = false;
    bLowercase = true;

    int i;

    strOut.append("-- only lowercase alpha (a-z)");
    strOut.append("\r\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        strOut.append(fortuna.randomString(20,bDigits,bLowercase,bUppercase));
        strOut.append("\r\n");
    }

    // Allow both lowercase and uppercase alpha chars
    bUppercase = true;
    strOut.append("-- lower and uppercase alpha (a-zA-Z)");
    strOut.append("\r\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        strOut.append(fortuna.randomString(20,bDigits,bLowercase,bUppercase));
        strOut.append("\r\n");
    }

    // Allow digits (0-9)
    bDigits = true;
    strOut.append("-- digits and lower/uppercase alpha (0-9a-zA-Z)");
    strOut.append("\r\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        strOut.append(fortuna.randomString(20,bDigits,bLowercase,bUppercase));
        strOut.append("\r\n");
    }

    // Allow only digits (0-9)
    bUppercase = false;
    bLowercase = false;
    strOut.append("-- only digits (0-9)");
    strOut.append("\r\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        strOut.append(fortuna.randomString(20,bDigits,bLowercase,bUppercase));
        strOut.append("\r\n");
    }



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }