diff options
Diffstat (limited to 'ext')
-rw-r--r-- | ext/tcltklib/tcltklib.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/ext/tcltklib/tcltklib.c b/ext/tcltklib/tcltklib.c index 0217ab8feb..84a999d7e4 100644 --- a/ext/tcltklib/tcltklib.c +++ b/ext/tcltklib/tcltklib.c @@ -2781,8 +2781,13 @@ ip_thread_tkwait(self, mode, target) VALUE del_root(ip) Tcl_Interp *ip; { + Tk_Window main_win; + Tcl_Preserve(ip); - Tk_DestroyWindow(Tk_MainWindow(ip)); + main_win = Tk_MainWindow(ip); + if (main_win != (Tk_Window)NULL) { + Tk_DestroyWindow(main_win); + } Tcl_Release(ip); return Qnil; } |