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gsignal: Signal connection ids are always > 0 if successful
Note this explicitly so that people can rely on doing: if (mystruct->sigid > 0) g_signal_disconnect (mystruct->object, mystruct->sigid); https://bugzilla.gnome.org/show_bug.cgi?id=719809
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@ -2256,7 +2256,7 @@ g_signal_get_invocation_hint (gpointer instance)
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*
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* Connects a closure to a signal for a particular object.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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gulong
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g_signal_connect_closure_by_id (gpointer instance,
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@ -2315,7 +2315,7 @@ g_signal_connect_closure_by_id (gpointer instance,
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*
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* Connects a closure to a signal for a particular object.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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gulong
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g_signal_connect_closure (gpointer instance,
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@ -2408,7 +2408,7 @@ node_check_deprecated (const SignalNode *node)
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* used. Specify @connect_flags if you need <literal>..._after()</literal> or
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* <literal>..._swapped()</literal> variants of this function.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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gulong
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g_signal_connect_data (gpointer instance,
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@ -469,7 +469,7 @@ void g_signal_chain_from_overridden_handler (gpointer instance,
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*
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* The handler will be called before the default handler of the signal.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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#define g_signal_connect(instance, detailed_signal, c_handler, data) \
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g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, (GConnectFlags) 0)
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@ -484,7 +484,7 @@ void g_signal_chain_from_overridden_handler (gpointer instance,
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*
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* The handler will be called after the default handler of the signal.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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#define g_signal_connect_after(instance, detailed_signal, c_handler, data) \
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g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_AFTER)
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@ -500,7 +500,7 @@ void g_signal_chain_from_overridden_handler (gpointer instance,
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* The instance on which the signal is emitted and @data will be swapped when
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* calling the handler.
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*
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* Returns: the handler id
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* Returns: the handler id (always greater than 0 for successful connections)
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*/
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#define g_signal_connect_swapped(instance, detailed_signal, c_handler, data) \
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g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_SWAPPED)
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