/**
* atk_component_get_extents:
* @component: an #AtkComponent
- * @x: address of #gint to put x coordinate
- * @y: address of #gint to put y coordinate
- * @width: address of #gint to put width
- * @height: address of #gint to put height
+ * @x: (out) (optional): address of #gint to put x coordinate
+ * @y: (out) (optional): address of #gint to put y coordinate
+ * @width: (out) (optional): address of #gint to put width
+ * @height: (out) (optional): address of #gint to put height
* @coord_type: specifies whether the coordinates are relative to the screen
* or to the components top level window
*
/**
* atk_component_get_position:
* @component: an #AtkComponent
- * @x: address of #gint to put x coordinate position
- * @y: address of #gint to put y coordinate position
+ * @x: (out) (optional): address of #gint to put x coordinate position
+ * @y: (out) (optional): address of #gint to put y coordinate position
* @coord_type: specifies whether the coordinates are relative to the screen
* or to the components top level window
*
/**
* atk_component_get_size:
* @component: an #AtkComponent
- * @width: address of #gint to put width of @component
- * @height: address of #gint to put height of @component
+ * @width: (out) (optional): address of #gint to put width of @component
+ * @height: (out) (optional): address of #gint to put height of @component
*
* Gets the size of the @component in terms of width and height.
*