set size if it's initially == wxDefaultSize() in MSWCreateControl

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@17183 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/control.cpp

@@ -156,7 +156,7 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
     InheritAttributes();
 
     // set the size now if no initial size specified
-    if ( w == 0 || h == 0 )
+    if ( w <= 0 || h <= 0 )
     {
         SetBestSize(size);
     }