No changes, just move wxCheckBoxState to wx/defs.h from wx/checkbox.h.

Move the enum to allow reusing it in other places.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68811 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -2235,6 +2235,18 @@ enum wxItemKind
     wxITEM_MAX
 };
 
+/*
+ * The possible states of a 3-state checkbox (Compatible
+ * with the 2-state checkbox).
+ */
+enum wxCheckBoxState
+{
+    wxCHK_UNCHECKED,
+    wxCHK_CHECKED,
+    wxCHK_UNDETERMINED /* 3-state checkbox only */
+};
+
+
 /*  hit test results */
 enum wxHitTest
 {