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Make gdk_display_open_default_libgtk_only more robust

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Make this function return NULL if GDK could not be
initialized. We check this by seeing if there is a
display manager singleton.
This commit is contained in:
Matthias Clasen 2013-03-23 19:40:16 -04:00
parent c5d7871eda
commit 48d8af85d0
1 changed files with 4 additions and 1 deletions
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5
gdk/gdk.c
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@ -350,7 +350,7 @@ gdk_get_display_arg_name (void)
*
* Opens the default display specified by command line arguments or
* environment variables, sets it as the default display, and returns
* it. gdk_parse_args must have been called first. If the default
* it. gdk_parse_args() must have been called first. If the default
* display has previously been set, simply returns that. An internal
* function that should not be used by applications.
*
@ -364,6 +364,9 @@ gdk_display_open_default_libgtk_only (void)
g_return_val_if_fail (gdk_initialized, NULL);
if (gdk_display_manager_peek () == NULL)
return NULL;
display = gdk_display_get_default ();
if (display)
return display;