Can you please elaborate your question?
0x is C#'s prefix which indicates that the number is hexadecimal.
&H is VB/VB.Net's ^____________________________________.
When you convert them(from C# to VB or from VB to C#), numbers after 0x/&H will stay same.
So, 0x1328D33 = &H1328D33, &H1DC02B8 = 0x1DC02B8, ...