X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d7da975624b24ca0b243e9e70974ecaf9047c50a..3cc487d140f11e26a9c4ae35ba87cc22684da65a:/src/generic/scrolwin.cpp

diff --git a/src/generic/scrolwin.cpp b/src/generic/scrolwin.cpp
index 3de943ec7c..18939cb0b8 100644
--- a/src/generic/scrolwin.cpp
+++ b/src/generic/scrolwin.cpp
@@ -21,6 +21,10 @@
     #pragma implementation "scrolwin.h"
 #endif
 
+#ifdef __VMS
+#define XtDisplay XTDISPLAY
+#endif
+
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -519,7 +523,7 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
     int w, h;
     m_targetWindow->GetClientSize(&w, &h);
 
-    if (x_pos != -1)
+    if ((x_pos != -1) && (m_xScrollPixelsPerLine))
     {
         int old_x = m_xScrollPosition;
         m_xScrollPosition = x_pos;
@@ -534,12 +538,12 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
         m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition );
         m_xScrollPosition = wxMax( 0, m_xScrollPosition );
 
-        if (old_x == m_xScrollPosition) return;
-
-        m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
-        m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
+        if (old_x != m_xScrollPosition) {
+            m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
+            m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
+        }
     }
-    if (y_pos != -1)
+    if ((y_pos != -1) && (m_yScrollPixelsPerLine))
     {
         int old_y = m_yScrollPosition;
         m_yScrollPosition = y_pos;
@@ -554,10 +558,10 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
         m_yScrollPosition = wxMin( m_yScrollLines-noPagePositions, m_yScrollPosition );
         m_yScrollPosition = wxMax( 0, m_yScrollPosition );
         
-        if (old_y == m_yScrollPosition) return;
-
-        m_targetWindow->SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
-        m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
+        if (old_y != m_yScrollPosition) {
+            m_targetWindow->SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
+            m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
+        }
     }
 
 #ifdef __WXMAC__