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

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

        action_context  The action context to get the fully qualified name from 
        buffer          The character buffer to store the controls fully qualifed name in, the first character may be 
                        set to null, if there 
                        is no control in the action context
        buffer_len      The storage space that the buffer has to store the name, see function gr_context_max_fqn


        The length of the control name if there is a control in the context, -1 otherwise

The gr_context_get_control function will build the fully qulified name for the control 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 control context in the action context, the function will return -1 and set the first character in buffer to NULL.