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PR_GetIdentitiesLayer
=====================
Finds the layer with the specified identity in the specified stack of
layers.
Syntax
------
.. code::
#include <prio.h>
PRFileDesc* PR_GetIdentitiesLayer(
PRFileDesc* stack,
PRDescIdentity id);
Parameters
~~~~~~~~~~
The function has the following parameters:
``stack``
A pointer to a :ref:`PRFileDesc` object that is a layer in a stack of
layers.
``id``
The identity of the specified layer.
Returns
~~~~~~~
The function returns one of the following values:
- If successful, a pointer to a file descriptor of the layer with the
specified identity in the given stack of layers.
- If not successful, ``NULL``.
Description
-----------
The stack of layers to be searched is specified by the fd parameter,
which is a layer in the stack. Both the layers underneath fd and the
layers above fd are searched to find the layer with the specified
identity.
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