X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/467e3168b33200bf6d62317294799363ed7dd50e..05ac7ac5785ef0ddb1bd04585f3c59c5d53089be:/src/mac/scrolbar.cpp

diff --git a/src/mac/scrolbar.cpp b/src/mac/scrolbar.cpp
index 075c1efc8a..68d403ae26 100644
--- a/src/mac/scrolbar.cpp
+++ b/src/mac/scrolbar.cpp
@@ -15,6 +15,11 @@
 
 #include "wx/defs.h"
 
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+#endif // WX_PRECOMP
+
 #include "wx/scrolbar.h"
 #include "wx/mac/uma.h"
 
@@ -134,12 +139,15 @@ void wxScrollBar::MacHandleControlClick( WXWidget control , wxInt16 controlpart
         nScrollInc = 0 ;
         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 			break ;
+                default :
+                        wxFAIL_MSG(wxT("illegal scrollbar selector"));
+                        break ;
 	}
 
   int new_pos = position + nScrollInc;
 
-  if (new_pos < 0)
-      new_pos = 0;
+  if (new_pos < minPos)
+      new_pos = minPos;
   if (new_pos > maxPos)
       new_pos = maxPos;
 	if ( nScrollInc )