StrToInt

StrToInt converts a String into an Integer data type.

If the String does not contain a Integer value, then an error will occur. You could use a Try...Except block or StrToIntDef to handle the error and provide a default value.

Declaration: Function StrToInt( const S : string) : Integer;

This example shows a successful instance and a failed instance.

procedure OnMapEvent(var Value:Variant);
var
  MyAmount : String;
begin
  MyAmount := '123';
 //Value will be equal to 123
  Value := StrToInt(MyAmount);
  MyAmount := '123.456';
 //In error, the result is -1 (there are decimals)
  Value := StrToInt(MyAmount);
end;

This function will be successful for up to 999,999,999 - anything larger will cause a minus 1 (-1) error result.

For a very large integer, you could use StrToInt64.