# System Parameters

'EO' | Embedded 'EO' Mnemonics

## Description

Sets handling of embedded 'EO' mnemonics (to end output transparency).

When enabled, PxPlus scans strings following a 'BO' mnemonic for embedded ESC+"EO". Normally, when output transparency is on, PxPlus will not scan the output data sent; thus, the 'EO' mnemonic cannot be embedded in the output string.

This system parameter simplifies the conversion to PxPlus from other languages.

#### Note:
When 'EO' is On, any ESC+"EO" sequence embedded in the data will terminate output transparency mode; this could cause some binary command sequences to printers to inadvertently end output transparency. It is good practice not to use this parameter and explicitly output the 'EO' mnemonic in a PRINT directive.

## Default

Off - The strings are not checked for embedded 'EO' mnemonics.

## See Also

'BO' Begin Output Transparency
PRINT Display Information

## Example

The example below shows a typical use of the 'BO' (begin) and 'EO' (end) output transparency mnemonics. The 'EO' mnemonic is not embedded in the string; therefore, PxPlus will automatically recognize it and terminate a 'BO' mnemonic:

> print (chan)'BO',"some sequence",'EO'

In the next example, the 'EO' mnemonic is embedded in the string (appended using the + plus sign):

> print (chan)'BO'+"some sequence"+'EO'

In this case, if the 'EO' system parameter is Off (default), the embedded 'EO' mnemonic is ignored. When the 'EO' parameter is On, PxPlus recognizes the embedded mnemonic and ends output transparency.