gr application set data variable

#include <gre/gre.h>                
int gr_application_set_data_variable(
  gr_application_t *app, 
  const char       *fqn,
  const char       *variable, 
  gr_data_format_t fmt, 
  gr_data_union_t  *data
);           

The gr_application_set_data_variable function provides an interface to set a Storyboard data variable. Combines the fqn and variable to create a key in the form of "fqn.variable". Copies the data into the corresponding data manager key, creating the key if needed.

Parameters: app A pointer to an application handle created using gr_application_create_args. fqn The fully qualified name name of the object, should be NULL for app level variables variable The name of the variable to set fmt The format describing the data argument: GR_DATA_FORMAT_(1s0|1u1|1s1|2u1|...) 1s0 (string) | 4u1 (uint32_t) | 4s1 (int32_t) ... data A pointer to the data to set, this is not a transfer of memory ownership. Returns: Zero on success, -1 on failure.

The gr_application_set_data is a method of setting, creating, and changing data variables which are useable by the Storyboard engine.

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