X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/187c183c6a57140886bac1c93cb42b93aa5f4e29..229d3f1c1fac88569a94b7a22fdc3149d57a46d4:/src/univ/scrolbar.cpp

diff --git a/src/univ/scrolbar.cpp b/src/univ/scrolbar.cpp
index 4445239eb9..e2f146b7d4 100644
--- a/src/univ/scrolbar.cpp
+++ b/src/univ/scrolbar.cpp
@@ -300,6 +300,12 @@ wxScrollArrows::Arrow wxScrollBar::HitTest(const wxPoint& pt) const
 // ----------------------------------------------------------------------------
 
 void wxScrollBar::OnIdle(wxIdleEvent& event)
+{
+    UpdateThumb();
+    event.Skip();
+}
+
+void wxScrollBar::UpdateThumb()
 {
     if ( m_dirty )
     {
@@ -373,8 +379,6 @@ void wxScrollBar::OnIdle(wxIdleEvent& event)
 
         m_dirty = FALSE;
     }
-
-    event.Skip();
 }
 
 void wxScrollBar::DoDraw(wxControlRenderer *renderer)
@@ -464,6 +468,10 @@ bool wxScrollBar::PerformAction(const wxControlAction& action,
     {
         DoSetThumb(numArg);
 
+        // VS: we have to force redraw here, otherwise the thumb will lack
+        //     behind mouse cursor
+        UpdateThumb();
+
         scrollType = wxEVT_SCROLLWIN_THUMBTRACK;
     }
     else if ( action == wxACTION_SCROLL_LINE_UP )