# %write() function

The %write() function writes the number
of bytes designated by *size* from *var* to the file specified by *file.descriptor* returned
by a previous call to %open(), %creat(), or %dup().

## Syntax

```
 n= %write(file.descriptor, var, size)
```

## Description

This function returns the number
of bytes actually written. If the length of *var* is less than *size*, the content of the string
written is undefined, as is usual in C. No data translation occurs.

Note: When using the %write() function against
a file that is opened in Text mode, some characters may be translated
according to the underlying ‘c’ function for that platform.

## Example(s)

```
n=len(item)
if %write(fd,item,n)<n then crt "write error"
```

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Source: https://d3codex.com/pickbasic-flashbasic/percent-write-function/ - part of the D3Codex reference.