FlowBox.connectUnselectAll

gulong connectUnselectAll(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  void)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0] :  gtk.flow_box.FlowBox)))
   &&  Parameters!T.length <  2)

Connect to UnselectAll signal.

The ::unselect-all signal is a [keybinding signal][GtkBindingSignal] which gets emitted to unselect all children of the box, if the selection mode permits it.

The default bindings for this signal is Ctrl-Shift-a.

Parameters

`callback`	signal callback delegate or function to connect `void callback(gtk.flow_box.FlowBox flowBox)` `flowBox` the instance the signal is connected to (optional)
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID