BinHexMethods (C++)

Description

The purpose of this example is to illustrate the BinToHex and HexToBin methods from the Classes unit. This code will convert a binary value to its hexadecimal representation and back.

Code

void __fastcall TForm1::btnToHexClick(TObject *Sender)
{
  UnicodeString str1, str2;
 
  /* Store the text in the memo to a String variable. */
  str1 = Memo1->Lines->Text;
  /* Set the length of the String to hold the conversion. */
  str2.SetLength(str1.Length() * 4);
  /* Call the binary to hexadecimal conversion procedure. */
  BinToHex(str1.c_str(), str2.c_str(), str1.Length() * sizeof(WideChar));
  /* Put the results in Memo2. */
  Memo2->Lines->Text = str2.c_str();
}
 
void __fastcall TForm1::btnToStringClick(TObject *Sender)
{
  UnicodeString str1, str2;
 
  /* Store the text in the memo to a String variable. */
  str1 = Memo2->Lines->Text;
  /* Set the length of the String to hold the conversion. */
  str2.SetLength(str1.Length() / 4);
  /* Call the hexadecimal to binary conversion procedure. */
  HexToBin(str1.c_str(), str2.c_str(), str1.Length() / sizeof(WideChar));
  /* And output the results to Memo1. */
  Memo1->Lines->Text = str2;
}

Uses

• System.Classes.BinToHex ( fr | de | ja )
• System.Classes.HexToBin ( fr | de | ja )