gr_context_get_layer

#include <gre/gre.h>
    int gr_context_get_layer(
      gr_action_context_t *action_context,
      char *buffer,
      int buffer_len
    );

The gr_context_get_layer function stores the fully qualified name of the layer in the buffer provided up to buffer_len characters.

gr_context_get_layer will build the fully qulified name for the layer context based on the action context and store it in the buffer that is provided, up to buffer_len bytes. It will return the length of the fully qualified name. If there is no layer context in the action context, the function will return -1 and set the first character in buffer to NULL.

Parameters

Parameter	Type	Description
action_context	gr_action_context_t*	The action context to get the fully qualified name from.
buffer	char*	The character buffer to store the layer's fully qualified name in, the first character may be set to null, if there is no layer in the action context.
buffer_len	int	The storage space that the buffer has to store the name, see function gr_context_max_fqn.

Returns

Type	Description
int	The length of the layer name if there is a layer in the context, -1 otherwise.