1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:

function GetXString(aString: string; SearchChar: Char; SearchCount: Integer): Integer;
var found, i: integer;
begin
  found := 0;
  result := 0;
  for i := 1 to length(aString) do
  begin
    if aString[i] = SearchChar then
      inc(found);
    if found = SearchCount then
    begin
      result := i;
      break;
    end;
  end;
end;