diff --git a/src/msw/dialog.cpp b/src/msw/dialog.cpp
index 0deadd900a..d8ef9f1f46 100644
--- a/src/msw/dialog.cpp
+++ b/src/msw/dialog.cpp
@@ -278,12 +278,12 @@ void wxDialog::GetPosition(int *x, int *y) const
 
 bool wxDialog::IsShown() const
 {
-  return wxModalDialogs.Find(this);
+  return m_isShown;
 }
 
 bool wxDialog::IsModal() const
 {
-    return wxModalDialogs.
+    return wxModalDialogs.Find((wxDialog *)this) != 0; // const_cast
 }
 
 bool wxDialog::Show(bool show)