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authorAlbrecht Schlosser <albrechts.fltk@online.de>2021-02-10 14:11:04 +0100
committerAlbrecht Schlosser <albrechts.fltk@online.de>2021-02-10 14:11:04 +0100
commitd53d6f3bcefc3e7f42cdf4920d24dc851aa63b00 (patch)
tree34e1cbc0f334a4ce16c3e1240bca11d3202707ca /src/Fl_Window.cxx
parent086396ca54bf126edbd495f534a6705b2a9865cb (diff)
Fix potential NULL pointer dereference
Diffstat (limited to 'src/Fl_Window.cxx')
-rw-r--r--src/Fl_Window.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Fl_Window.cxx b/src/Fl_Window.cxx
index f489fe89a..26e259b5d 100644
--- a/src/Fl_Window.cxx
+++ b/src/Fl_Window.cxx
@@ -135,7 +135,7 @@ Fl_Window* Fl_Widget::top_window_offset(int& xoff, int& yoff) const {
yoff += w->y();
w = w->window(); // walk up window hierarchy
}
- return const_cast<Fl_Widget*>(w)->as_window();
+ return w ? const_cast<Fl_Widget*>(w)->as_window() : NULL;
}
/** Gets the x position of the window on the screen */