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-rw-r--r--xfa/fwl/cfwl_scrollbar.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/xfa/fwl/cfwl_scrollbar.cpp b/xfa/fwl/cfwl_scrollbar.cpp
index f723124e86..a65d04e1a4 100644
--- a/xfa/fwl/cfwl_scrollbar.cpp
+++ b/xfa/fwl/cfwl_scrollbar.cpp
@@ -385,7 +385,8 @@ void CFWL_ScrollBar::OnLButtonDown(const CFX_PointF& point) {
}
void CFWL_ScrollBar::OnLButtonUp(const CFX_PointF& point) {
- m_pTimerInfo->StopTimer();
+ if (m_pTimerInfo)
+ m_pTimerInfo->StopTimer();
m_bMouseDown = false;
DoMouseUp(0, m_rtMinBtn, m_iMinButtonState, point);
DoMouseUp(1, m_rtThumb, m_iThumbButtonState, point);