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1
#include
<gtk/gtk.h>
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int
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main
(
int
argc
,
char
**
argv
)
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{
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const
char
*
display_name
;
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GdkDisplay
*
display
;
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GtkWidget
*
win
, *
but
;
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gboolean
has_display
;
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g_log_set_always_fatal
(
fatal_mask:
G_LOG_LEVEL_WARNING
|
G_LOG_LEVEL_CRITICAL
);
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gdk_set_allowed_backends
(
backends:
"x11"
);
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display_name
=
g_getenv
(
variable:
"DISPLAY"
);
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g_unsetenv
(
variable:
"DISPLAY"
);
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has_display
=
gtk_init_check
();
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g_assert_false
(
has_display
);
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display
=
gdk_display_open
(
display_name
);
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if
(!
display
)
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return
0
;
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gdk_display_manager_set_default_display
(
manager:
gdk_display_manager_get
(),
display
);
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win
=
gtk_window_new
();
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but
=
gtk_button_new_with_label
(
label:
"Try to Exit"
);
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g_signal_connect_swapped
(
but
,
"clicked"
,
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G_CALLBACK
(
gtk_window_destroy
),
win
);
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gtk_window_set_child
(
GTK_WINDOW
(
win
),
child:
but
);
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gtk_widget_show
(
widget:
win
);
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gtk_test_widget_wait_for_draw
(
widget:
win
);
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gdk_display_close
(
display
);
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return
0
;
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}
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