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PtSendEventToWidget()

Give an event to a widget

Synopsis:

int PtSendEventToWidget( PtWidget_t *widget, 
                         PhEvent_t *event );

Library:

ph

Description:

This function passes the event in the given PhEvent_t structure directly to the given widget for processing.

The widget expects the event to be followed immediately by the associated set of rectangles and event data. See the example below.

Returns:

The value returned by the last callback function invoked by the event, or -1 if an error occurred.

Examples:

// Send a Phantom release event to a widget.

Phantom( PtWidget_t *widget, PhEvent_t *event )
{
  struct{
    PhEvent_t event;
    PhRect_t  rect;
    PhPointerEvent_t pevent;
  } new_event;

  memset( &new_event.rect, -1 , 
          sizeof( new_event.rect ) );

  if( event ) {
    new_event.event = *event;
  }

  new_event.event.processing_flags = Ph_FAKE_EVENT;
  new_event.event.type = Ph_EV_BUT_RELEASE;
  new_event.event.subtype = Ph_EV_RELEASE_PHANTOM;;
  new_event.pevent.click_count = 1;
  new_event.pevent.buttons = Ph_BUTTON_SELECT;
  new_event.event.num_rects = 1;
  PtSendEventToWidget( widget, 
                       (PhEvent_t *) &new_event);
}

Classification:

Photon

Safety:
Interrupt handler	No
Signal handler	No
Thread	No