Method

GtkWidgetqueue_draw_region

Declaration [src]

void
gtk_widget_queue_draw_region (
  GtkWidget* widget,
  const cairo_region_t* region
)

Description [src]

Invalidates the area of widget defined by region by calling gdk_window_invalidate_region() on the widget’s window and all its child windows. Once the main loop becomes idle (after the current batch of events has been processed, roughly), the window will receive expose events for the union of all regions that have been invalidated.

Normally you would only use this function in widget implementations. You might also use it to schedule a redraw of a GtkDrawingArea or some portion thereof.

Available since:3.0

Parameters

region cairo_region_t
 

Region to draw.

 The data is owned by the caller of the function.