> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Function-Call Operators

> Understanding how to set function and method parameters using parentheses and colon operators.

Function and method parameters are set in one of the following ways:

* Using the `()` operator (parentheses)
* Using the `:` operator (colon)

Parameters are separated by `,` (comma).

If the list of arguments of a function or method is empty, you can omit the `()` operator. The `:` operator is not used in this case.

## Examples

| Operator | Example                                       |
| :------- | :-------------------------------------------- |
| `()`     | `Mode( Horizontal );` `MaxErrors( 2, 0.25 );` |
| `:`      | `Mode: Horizontal;` `MaxErrors: 2, 0.25;`     |
|          | `DontFind();` `DontFind;`                     |