PrintOperation.connectCustomWidgetApply

gulong connectCustomWidgetApply(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.widget.Widget)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  gtk.print_operation.PrintOperation)))
   &&  Parameters!T.length <  3)

Connect to CustomWidgetApply signal.

Emitted right before #GtkPrintOperation::begin-print if you added a custom widget in the #GtkPrintOperation::create-custom-widget handler. When you get this signal you should read the information from the custom widgets, as the widgets are not guaraneed to be around at a later time.

Parameters

`callback`	signal callback delegate or function to connect `void callback(gtk.widget.Widget widget, gtk.print_operation.PrintOperation printOperation)` `widget` the custom widget added in create-custom-widget (optional) `printOperation` 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