Implement Ctrl-Mouse-2 (split vertically) for toolkit scrollbars

1 files changed, 3 insertions, 0 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 86fdb9a0c40..11e3980324f 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -5431,6 +5431,9 @@ make_lispy_event (event)
         event->modifiers |= click_modifier;
         event->modifiers &= ~up_modifier;
 
+        if (event->code >= ASIZE (mouse_syms))
+          mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil);
+
         /* Get the symbol we should use for the mouse click.  */
         head = modify_event_symbol (event->code,
                                     event->modifiers,