---
url: /flow/guide/scripting-reference/functions/conversion/strtoint64.md
---

# StrToInt64

## Declaration

`Function StrToInt64( const S : string) : Integer;`

### Example

```pascal
procedure OnMapEvent(var Value:Variant);
var MyAmount : String
begin
MyAmount := '12345678912345678';
Value := StrToInt64(MyAmount); //Value will be equal to 12345678912345678
end;
```

## Description

StrToInt converts a string into an integer data type. If string does not contain a integer value an error will occur.

You could use a [Try...Except](/flow/guide/scripting-reference/statements/try...except) block to handle the error and provide a default value.