Tizen Native API  4.0
Functions | Typedefs
Edje Communication Interface: Signal
Edje Object

Functions that deal with signals.

Edje has two communication interfaces between code and theme. Signals and messages.

This group has functions that deal with signals. One can either emit a signal from code to a theme or create handles for the ones emitted from themes. Signals are identified by strings.

Functions

void * edje_object_signal_callback_extra_data_get (void)
 Gets extra data passed to callbacks.

Typedefs

typedef void(* Edje_Signal_Cb )(void *data, Evas_Object *obj, const char *emission, const char *source)

Typedef Documentation

typedef void(* Edje_Signal_Cb)(void *data, Evas_Object *obj, const char *emission, const char *source)

Edje signal callback functions's prototype definition. data will have the auxiliary data pointer set at the time the callback registration. obj will be a pointer the Edje object where the signal comes from. emission will identify the exact signal's emission string and source the exact signal's source one.

Examples:
edje-color-class.c.

Function Documentation

void* edje_object_signal_callback_extra_data_get ( void  )

Gets extra data passed to callbacks.

Returns:
The extra data for that callback.

Some callbacks pass extra information. This function gives access to that extra information. It's somehow like event_info in smart callbacks.

See also:
edje_object_signal_callback_add() for more on Edje signals.
Since (EFL) :
1.1.0
Since :
2.3