diff --git a/include/wx/msw/taskbarbutton.h b/include/wx/msw/taskbarbutton.h
index 15a5a58aa8..3e3a84e3b7 100644
--- a/include/wx/msw/taskbarbutton.h
+++ b/include/wx/msw/taskbarbutton.h
@@ -29,6 +29,7 @@ public:
     virtual void SetOverlayIcon(const wxIcon& icon,
         const wxString& description = wxString()) wxOVERRIDE;
     virtual void SetThumbnailClip(const wxRect& rect) wxOVERRIDE;
+    virtual void SetThumbnailContents(const wxWindow* child) wxOVERRIDE;
     virtual bool AddThumbBarButton(wxThumbBarButton *button) wxOVERRIDE;
     virtual void ShowThumbnailToolbar() wxOVERRIDE;
 
diff --git a/include/wx/taskbarbutton.h b/include/wx/taskbarbutton.h
index 9cb76d2580..a1e4b82554 100644
--- a/include/wx/taskbarbutton.h
+++ b/include/wx/taskbarbutton.h
@@ -62,6 +62,7 @@ public:
     virtual void SetOverlayIcon(const wxIcon& icon,
                                 const wxString& description = wxString()) = 0;
     virtual void SetThumbnailClip(const wxRect& rect) = 0;
+    virtual void SetThumbnailContents(const wxWindow* child) = 0;
 
     /**
         Adds a thumbnail toolbar button to the thumbnail image of a window in
diff --git a/src/msw/taskbarbutton.cpp b/src/msw/taskbarbutton.cpp
index d61ac2958d..491611605e 100644
--- a/src/msw/taskbarbutton.cpp
+++ b/src/msw/taskbarbutton.cpp
@@ -111,6 +111,11 @@ void wxTaskBarButtonImpl::SetThumbnailClip(const wxRect& rect)
     m_taskbarList->SetThumbnailClip(m_hwnd, rect.IsEmpty() ? NULL : &rc);
 }
 
+void wxTaskBarButtonImpl::SetThumbnailContents(const wxWindow* child)
+{
+    SetThumbnailClip(child->GetRect());
+}
+
 bool wxTaskBarButtonImpl::AddThumbBarButton(wxThumbBarButton *button)
 {
     wxCHECK( button != NULL, wxT("Can't add invalid wxThumbBarButton.") );