1 files changed, 9 insertions, 0 deletions
diff --git a/window.go b/window.go
index d8375d3..99ffedf 100644
--- a/window.go
+++ b/window.go
@@ -15,6 +15,11 @@ type Window struct {
 	// If Closing is nil, a default which rejects the close will be used.
 	Closing		func() bool
 
+	// Posted is called when Post() is called with the given Window as an argument.
+	// It receives the data passed to Post() as an argument.
+	// If Posted is nil, a default handler which does nothing will be used.
+	Posted		func(data interface{})
+
 	created    bool
 	sysData    *sysData
 	initTitle  string
@@ -87,6 +92,10 @@ func (w *Window) Create(control Control) {
 			return false
 		}
 	}
+	w.sysData.post = w.Posted
+	if w.sysData.post == nil {
+		w.sysData.post = func(data interface{}) {}
+	}
 	err := w.sysData.make(nil)
 	if err != nil {
 		panic(fmt.Errorf("error opening window: %v", err))