signal callback delegate or function to connect
bool callback(gtk.tool_item.ToolItem toolItem)
toolItem the instance the signal is connected to (optional)
Returns true if the signal was handled, false if not
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to CreateMenuProxy signal.
This signal is emitted when the toolbar needs information from tool_item about whether the item should appear in the toolbar overflow menu. In response the tool item should either
The toolbar may cache the result of this signal. When the tool item changes how it will respond to this signal it must call gtk.tool_item.ToolItem.rebuildMenu to invalidate the cache and ensure that the toolbar rebuilds its overflow menu.