1 files changed, 2 insertions, 2 deletions
diff --git a/src/button.cpp b/src/button.cpp
index c14840a..f08f474 100644
--- a/src/button.cpp
+++ b/src/button.cpp
@@ -18,6 +18,7 @@
 //
 //  -------------------------------------------------------------------------
 //
+#include "w32dlib/window.h"
 #include "w32dlib/button.h"
 #include "w32dlib/dialog.h"
 
@@ -41,8 +42,7 @@ Button::~Button()
 
 // ------------------------------------------------------------
 //
-void Button::OnPress(W32DLibCallbackInterface *owner,
-		     W32DLibCallback callback)
+void Button::OnPress(Window *owner, W32DLibCallback callback)
 {
     Control::AddCallback(WM_COMMAND,owner,callback);
 }