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guard against dereferencing null in the previous

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This commit is contained in:
Paul Licameli
2016-11-21 12:55:21 -05:00
parent 3cecbcd44e
commit 6fad643000
1 changed files with 3 additions and 1 deletions
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4
src/widgets/wxPanelWrapper.cpp
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@@ -18,7 +18,9 @@ void wxTabTraversalWrapperCharHook(wxKeyEvent &event)
if (event.GetKeyCode() == WXK_TAB) {
auto focus = wxWindow::FindFocus();
if (dynamic_cast<wxGrid*>(focus)
|| (focus && dynamic_cast<wxGrid*>(focus->GetParent()->GetParent()))) {
|| (focus &&
focus->GetParent() &&
dynamic_cast<wxGrid*>(focus->GetParent()->GetParent()))) {
// Let wxGrid do its own TAB key handling
event.Skip();
return;