Description

Notifies can_write property changed.

If Efl.Io.Writer.can_write is true there is data to Efl.Io.Writer.write without blocking/error. If Efl.Io.Writer.can_write is false, Efl.Io.Writer.write would either block or fail.

Note that usually this event is dispatched from inside Efl.Io.Writer.write, thus before it returns.

Since 1.19

Signature

can_write,changed;

C information

C usage

static void
on_efl_io_writer_event_can_write_changed(void *data, const Efl_Event *event)
{
    void info = event->info;
    Eo *obj = event->object;
    Data *d = data;
 
    /* event hander code */
}
 
static void
setup_event_handler(Eo *obj, Data *d)
{
    efl_event_callback_add(obj, EFL_IO_WRITER_EVENT_CAN_WRITE_CHANGED, on_efl_io_writer_event_can_write_changed, d);
}