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-rw-r--r--src/Fl_Screen_Driver.cxx3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/Fl_Screen_Driver.cxx b/src/Fl_Screen_Driver.cxx
index 4e721d28e..ec1474cc5 100644
--- a/src/Fl_Screen_Driver.cxx
+++ b/src/Fl_Screen_Driver.cxx
@@ -493,6 +493,9 @@ float Fl_Screen_Driver::default_scale_factor()
else {
factor = desktop_scale_factor();
}
+ // checks to prevent potential crash (factor <= 0) or very large factors
+ if (factor < 0.25) factor = 0.25;
+ else if (factor > 10.0) factor = 10.0;
return factor;
}