Hi Prashant;

  My STD framework has two global functions ... "fn_long2hex" and "fn_hex2long". You are most welcome to download the open source framework and then copy and adopt any part of the framework (or in this case global functions) for your own application use.

HTH

Regards ... Chris

Here is a function that converts a number to Hex. You'll notice that it makes calls to itself (recursion). The argument ai_digit is the number of hex digits you want which allows it to have zeros in the front as needed.

public function string hex (unsignedlong aul_number, integer ai_digit);Char lc_ret
ULong lul_temp0, lul_temp1

If ai_digit > 0 Then
lul_temp0 = Abs(aul_number / (16 ^ (ai_digit - 1)))
lul_temp1 = lul_temp0 * (16 ^ (ai_digit - 1))
If lul_temp0 > 9 Then
lc_ret = Char(lul_temp0 + 55)
Else
lc_ret = Char(lul_temp0 + 48)
End If
Return lc_ret + Hex(aul_number - lul_temp1, ai_digit - 1)
End If

Return ""

end function

so sorry I have not mentioned I am using PB 12.5.2 

If you have PB2019, take a look at the CoderObject.