fix the possible bug for key mapping in Linux GTK library

d4ef5bc1 · klchang · 1ba29cc9 · d4ef5bc1
Commit d4ef5bc1 authored Oct 13, 2017 by klchang
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window_gtk.cpp modules/highgui/src/window_gtk.cpp +1 -1

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--- a/modules/highgui/src/window_gtk.cpp
+++ b/modules/highgui/src/window_gtk.cpp
@@ -1632,7 +1632,7 @@ static gboolean icvOnKeyPress(GtkWidget* widget, GdkEventKey* event, gpointer us
        break;
    case GDK_Return:
    case GDK_Linefeed:
-        code = '\n';
+        code = 13;
        break;
    case GDK_Tab:
        code = '\t';