Implemented the new events in the portable code.

button.go

@@ -36,6 +36,9 @@ func (b *Button) Text() string {
 }
 
 func (b *Button) make(window *sysData) error {
+	b.sysData.event = func() {
+		window.winhandler.Event(Clicked, b)
+	}
 	err := b.sysData.make(window)
 	if err != nil {
 		return err

sysdata.go

@@ -10,7 +10,8 @@ type cSysData struct {
 	alternate bool        // editable for Combobox, multi-select for listbox, password for lineedit
 	handler   AreaHandler // for Areas; TODO rename to areahandler
 	winhandler	WindowHandler	// for Windows
-	event	func()		// provided by each widget
+	close	func(*bool)	// provided by each Window
+	event	func()		// provided by each control
 }
 
 // this interface is used to make sure all sysDatas are synced

window.go

@@ -98,6 +98,10 @@ func (w *Window) Create(control Control) {
 		panic("window already open")
 	}
 	w.sysData.spaced = w.spaced
+	w.sysData.winhandler = w.handler
+	w.sysData.close = func(b *bool) {
+		w.sysData.winhandler.Event(Closing, b)
+	}
 	err := w.sysData.make(nil)
 	if err != nil {
 		panic(fmt.Errorf("error opening window: %v", err))