Returns Serial ID for gump with list index GumpIndex

Returns 0 if gump index incorrect (out of gumps list) or char disconnected.

NB: SerialID CAN BE unique, but thats not a rule!

Pascal Syntax:

function GetGumpSerial(GumpIndex : Integer) : Cardinal;

Pascal Example:

If GetGumpsCount > 0 then
  if GetGumpSerial(GetGumpsCount-1) = $15A7DDF then

Pascal Example 2:

Python Syntax:

def GetGumpSerial(GumpIndex): --> uint