# PR_NewLock

Creates a new lock.

## Syntax

```{code}
#include <prlock.h>

PRLock* PR_NewLock(void);
```

### Returns

The function returns one of the following values:

- If successful, a pointer to the new lock object.
- If unsuccessful (for example, the lock cannot be created because of
  resource constraints), `NULL`.

## Description

{ref}`PR_NewLock` creates a new opaque lock.