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gtk: check NULL before unref

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huangqinjin 2017-06-29 11:35:34 +08:00 committed by GitHub
parent 324851882a
commit aa75b6067c
1 changed files with 4 additions and 2 deletions
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6
modules/highgui/src/window_gtk.cpp
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@ -951,7 +951,8 @@ static gboolean cvImageWidget_draw(GtkWidget* widget, cairo_t *cr, gpointer data
} }
cairo_paint(cr); cairo_paint(cr);
g_object_unref(pixbuf); if(pixbuf)
g_object_unref(pixbuf);
return TRUE; return TRUE;
} }
@ -1005,7 +1006,8 @@ static gboolean cvImageWidget_expose(GtkWidget* widget, GdkEventExpose* event, g
} }
cairo_paint(cr); cairo_paint(cr);
g_object_unref(pixbuf); if(pixbuf)
g_object_unref(pixbuf);
cairo_destroy(cr); cairo_destroy(cr);
return TRUE; return TRUE;
} }