# File Lock Functions

PxIOFileLock |

## Description

Locks the specified file

## Format

int PxIOFileLock(PxIOFileHandle handle);

Where:

handle | The handle of an open file

## Return Value

If the function succeeds, a value of PXIO_SUCCESS_STATUS is returned; otherwise, an error value is returned. More information on the nature of the error can be found by calling PxIOGetError.

#### Note:
If another process has already the file locked, an error is returned immediately.