X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a49afa93ca428a2236d5bc76f628241036f01629..491b5be8305968871bc289453ed088a70c3de044:/src/mac/scrolbar.cpp

diff --git a/src/mac/scrolbar.cpp b/src/mac/scrolbar.cpp
index fb7a5311ca..e9d45ce4e5 100644
--- a/src/mac/scrolbar.cpp
+++ b/src/mac/scrolbar.cpp
@@ -13,6 +13,8 @@
 #pragma implementation "scrolbar.h"
 #endif
 
+#include "wx/defs.h"
+
 #include "wx/scrolbar.h"
 #include "wx/mac/uma.h"
 
@@ -112,19 +114,19 @@ void wxScrollBar::MacHandleControlClick( ControlHandle control , SInt16 controlp
 	switch( controlpart )
 	{
 		case kControlUpButtonPart :
-        nScrollInc = -1;
+        nScrollInc = -m_pageSize;
         scrollEvent = wxEVT_SCROLL_LINEUP;
 			break ;
 		case kControlDownButtonPart :
-        nScrollInc = 1;
+        nScrollInc = m_pageSize;
         scrollEvent = wxEVT_SCROLL_LINEDOWN;
 			break ;
 		case kControlPageUpPart :
-        nScrollInc = -m_pageSize;
+        nScrollInc = -m_viewSize;
         scrollEvent = wxEVT_SCROLL_PAGEUP;
 			break ;
 		case kControlPageDownPart :
-        nScrollInc = m_pageSize;
+        nScrollInc = m_viewSize;
         scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 			break ;
 		case kControlIndicatorPart :