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1.10.0
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Github User Fetcher 1.0.0
C Application with Server and GUI
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#include <gobject/gclosure.h>#include <gobject/gvalue.h>#include <gobject/gparam.h>#include <gobject/gmarshal.h>Go to the source code of this file.
Data Structures | |
| struct | _GSignalInvocationHint |
| struct | _GSignalQuery |
Macros | |
| #define | G_SIGNAL_FLAGS_MASK 0x1ff |
| #define | G_SIGNAL_MATCH_MASK 0x3f |
| #define | G_SIGNAL_TYPE_STATIC_SCOPE (G_TYPE_FLAG_RESERVED_ID_BIT) |
| #define | g_clear_signal_handler(handler_id_ptr, instance) |
| #define | g_signal_connect(instance, detailed_signal, c_handler, data) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, (GConnectFlags) 0) |
| #define | g_signal_connect_after(instance, detailed_signal, c_handler, data) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_AFTER) |
| #define | g_signal_connect_swapped(instance, detailed_signal, c_handler, data) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_SWAPPED) |
| #define | g_signal_handlers_disconnect_by_func(instance, func, data) |
| #define | g_signal_handlers_disconnect_by_data(instance, data) g_signal_handlers_disconnect_matched ((instance), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, (data)) |
| #define | g_signal_handlers_block_by_func(instance, func, data) |
| #define | g_signal_handlers_unblock_by_func(instance, func, data) |
Typedefs | |
| typedef typedefG_BEGIN_DECLS struct _GSignalQuery | GSignalQuery |
| typedef struct _GSignalInvocationHint | GSignalInvocationHint |
| typedef GClosureMarshal | GSignalCMarshaller |
| typedef GVaClosureMarshal | GSignalCVaMarshaller |
| typedef gboolean(* | GSignalEmissionHook) (GSignalInvocationHint *ihint, guint n_param_values, const GValue *param_values, gpointer data) |
| typedef gboolean(* | GSignalAccumulator) (GSignalInvocationHint *ihint, GValue *return_accu, const GValue *handler_return, gpointer data) |
Enumerations | |
| enum | GSignalFlags { G_SIGNAL_RUN_FIRST = 1 << 0 , G_SIGNAL_RUN_LAST = 1 << 1 , G_SIGNAL_RUN_CLEANUP = 1 << 2 , G_SIGNAL_NO_RECURSE = 1 << 3 , G_SIGNAL_DETAILED = 1 << 4 , G_SIGNAL_ACTION = 1 << 5 , G_SIGNAL_NO_HOOKS = 1 << 6 , G_SIGNAL_MUST_COLLECT = 1 << 7 , G_SIGNAL_DEPRECATED = 1 << 8 , G_SIGNAL_ACCUMULATOR_FIRST_RUN = 1 << 17 } |
| enum | GConnectFlags { GOBJECT_AVAILABLE_ENUMERATOR_IN_2_74 = 0 , G_CONNECT_AFTER = 1 << 0 , G_CONNECT_SWAPPED = 1 << 1 } |
| enum | GSignalMatchType { G_SIGNAL_MATCH_ID = 1 << 0 , G_SIGNAL_MATCH_DETAIL = 1 << 1 , G_SIGNAL_MATCH_CLOSURE = 1 << 2 , G_SIGNAL_MATCH_FUNC = 1 << 3 , G_SIGNAL_MATCH_DATA = 1 << 4 , G_SIGNAL_MATCH_UNBLOCKED = 1 << 5 } |
| #define g_clear_signal_handler | ( | handler_id_ptr, | |
| instance ) |
Definition at line 464 of file gsignal.h.
| #define g_signal_connect | ( | instance, | |
| detailed_signal, | |||
| c_handler, | |||
| data ) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, (GConnectFlags) 0) |
g_signal_connect: @instance: the instance to connect to. @detailed_signal: a string of the form "signal-name::detail". @c_handler: the GCallback to connect. @data: data to pass to @c_handler calls.
Connects a [type@.nosp@m.GObj.nosp@m.ect.C.nosp@m.allb.nosp@m.ack] function to a signal for a particular object.
The handler will be called synchronously, before the default handler of the signal. [func@.nosp@m.GObj.nosp@m.ect.s.nosp@m.igna.nosp@m.l_emi.nosp@m.t] will not return control until all handlers are called.
See memory management of signal handlers for details on how to handle the return value and memory management of @data.
This function cannot fail. If the given signal doesn’t exist, a critical warning is emitted.
Returns: the handler ID, of type gulong (always greater than 0)
Definition at line 518 of file gsignal.h.
Referenced by activate(), and main().
| #define g_signal_connect_after | ( | instance, | |
| detailed_signal, | |||
| c_handler, | |||
| data ) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_AFTER) |
g_signal_connect_after: @instance: the instance to connect to. @detailed_signal: a string of the form "signal-name::detail". @c_handler: the GCallback to connect. @data: data to pass to @c_handler calls.
Connects a GCallback function to a signal for a particular object.
The handler will be called synchronously, after the default handler of the signal.
This function cannot fail. If the given signal doesn’t exist, a critical warning is emitted.
Returns: the handler ID, of type gulong (always greater than 0)
Definition at line 536 of file gsignal.h.
| #define g_signal_connect_swapped | ( | instance, | |
| detailed_signal, | |||
| c_handler, | |||
| data ) g_signal_connect_data ((instance), (detailed_signal), (c_handler), (data), NULL, G_CONNECT_SWAPPED) |
g_signal_connect_swapped: @instance: the instance to connect to. @detailed_signal: a string of the form "signal-name::detail". @c_handler: the GCallback to connect. @data: data to pass to @c_handler calls.
Connects a GCallback function to a signal for a particular object.
The instance on which the signal is emitted and @data will be swapped when calling the handler. This is useful when calling pre-existing functions to operate purely on the @data, rather than the @instance: swapping the parameters avoids the need to write a wrapper function.
For example, this allows the shorter code: |[ g_signal_connect_swapped (button, "clicked", (GCallback) gtk_widget_hide, other_widget); ]|
Rather than the cumbersome: |[ static void button_clicked_cb (GtkButton *button, GtkWidget *other_widget) { gtk_widget_hide (other_widget); }
...
g_signal_connect (button, "clicked", (GCallback) button_clicked_cb, other_widget); ]|
This function cannot fail. If the given signal doesn’t exist, a critical warning is emitted.
Returns: the handler ID, of type gulong (always greater than 0)
Definition at line 577 of file gsignal.h.
| #define G_SIGNAL_FLAGS_MASK 0x1ff |
| #define g_signal_handlers_block_by_func | ( | instance, | |
| func, | |||
| data ) |
g_signal_handlers_block_by_func: @instance: The instance to block handlers from. @func: The C closure callback of the handlers (useless for non-C closures). @data: The closure data of the handlers' closures.
Blocks all handlers on an instance that match @func and @data.
Returns: The number of handlers that matched.
Definition at line 618 of file gsignal.h.
| #define g_signal_handlers_disconnect_by_data | ( | instance, | |
| data ) g_signal_handlers_disconnect_matched ((instance), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, (data)) |
g_signal_handlers_disconnect_by_data: @instance: The instance to remove handlers from @data: the closure data of the handlers' closures
Disconnects all handlers on an instance that match @data.
Returns: The number of handlers that matched.
Since: 2.32
Definition at line 605 of file gsignal.h.
| #define g_signal_handlers_disconnect_by_func | ( | instance, | |
| func, | |||
| data ) |
g_signal_handlers_disconnect_by_func: @instance: The instance to remove handlers from. @func: The C closure callback of the handlers (useless for non-C closures). @data: The closure data of the handlers' closures.
Disconnects all handlers on an instance that match @func and @data.
Returns: The number of handlers that matched.
Definition at line 589 of file gsignal.h.
| #define g_signal_handlers_unblock_by_func | ( | instance, | |
| func, | |||
| data ) |
g_signal_handlers_unblock_by_func: @instance: The instance to unblock handlers from. @func: The C closure callback of the handlers (useless for non-C closures). @data: The closure data of the handlers' closures.
Unblocks all handlers on an instance that match @func and @data.
Returns: The number of handlers that matched.
Definition at line 632 of file gsignal.h.
| #define G_SIGNAL_MATCH_MASK 0x3f |
G_SIGNAL_MATCH_MASK:
A mask for all GSignalMatchType bits.
| #define G_SIGNAL_TYPE_STATIC_SCOPE (G_TYPE_FLAG_RESERVED_ID_BIT) |
G_SIGNAL_TYPE_STATIC_SCOPE:
This macro flags signal argument types for which the signal system may assume that instances thereof remain persistent across all signal emissions they are used in. This is only useful for non ref-counted, value-copy types.
To flag a signal argument in this way, add | G_SIGNAL_TYPE_STATIC_SCOPE to the corresponding argument of g_signal_new(). |[ g_signal_new ("size_request", G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GtkWidgetClass, size_request), NULL, NULL, _gtk_marshal_VOID__BOXED, G_TYPE_NONE, 1, GTK_TYPE_REQUISITION | G_SIGNAL_TYPE_STATIC_SCOPE); ]|
| typedef gboolean(* GSignalAccumulator) (GSignalInvocationHint *ihint, GValue *return_accu, const GValue *handler_return, gpointer data) |
GSignalAccumulator: @ihint: Signal invocation hint, see GSignalInvocationHint. @return_accu: Accumulator to collect callback return values in, this is the return value of the current signal emission. @handler_return: A GValue holding the return value of the signal handler. @data: Callback data that was specified when creating the signal.
The signal accumulator is a special callback function that can be used to collect return values of the various callbacks that are called during a signal emission.
The signal accumulator is specified at signal creation time, if it is left NULL, no accumulation of callback return values is performed. The return value of signal emissions is then the value returned by the last callback.
Returns: The accumulator function returns whether the signal emission should be aborted. Returning TRUE will continue with the signal emission. Returning FALSE will abort the current emission. Since 2.62, returning FALSE will skip to the CLEANUP stage. In this case, emission will occur as normal in the CLEANUP stage and the handler's return value will be accumulated.
| typedef GClosureMarshal GSignalCMarshaller |
GSignalCMarshaller:
This is the signature of marshaller functions, required to marshall arrays of parameter values to signal emissions into C language callback invocations.
It is merely an alias to GClosureMarshal since the GClosure mechanism takes over responsibility of actual function invocation for the signal system.
| typedef gboolean(* GSignalEmissionHook) (GSignalInvocationHint *ihint, guint n_param_values, const GValue *param_values, gpointer data) |
GSignalEmissionHook: @ihint: Signal invocation hint, see GSignalInvocationHint. @n_param_values: the number of parameters to the function, including the instance on which the signal was emitted. @param_values: (array length=n_param_values): the instance on which the signal was emitted, followed by the parameters of the emission. @data: user data associated with the hook.
A simple function pointer to get invoked when the signal is emitted.
Emission hooks allow you to tie a hook to the signal type, so that it will trap all emissions of that signal, from any object.
You may not attach these to signals created with the G_SIGNAL_NO_HOOKS flag.
Returns: whether it wants to stay connected. If it returns FALSE, the signal hook is disconnected (and destroyed).
| typedef struct _GSignalInvocationHint GSignalInvocationHint |
| typedef typedefG_BEGIN_DECLS struct _GSignalQuery GSignalQuery |
| enum GConnectFlags |
GConnectFlags: @G_CONNECT_DEFAULT: Default behaviour (no special flags). Since: 2.74 @G_CONNECT_AFTER: If set, the handler should be called after the default handler of the signal. Normally, the handler is called before the default handler. @G_CONNECT_SWAPPED: If set, the instance and data should be swapped when calling the handler; see g_signal_connect_swapped() for an example.
The connection flags are used to specify the behaviour of a signal's connection.
| Enumerator | |
|---|---|
| GOBJECT_AVAILABLE_ENUMERATOR_IN_2_74 | |
| G_CONNECT_AFTER | |
| G_CONNECT_SWAPPED | |
Definition at line 170 of file gsignal.h.
| enum GSignalFlags |
GSignalFlags: @G_SIGNAL_RUN_FIRST: Invoke the object method handler in the first emission stage. @G_SIGNAL_RUN_LAST: Invoke the object method handler in the third emission stage. @G_SIGNAL_RUN_CLEANUP: Invoke the object method handler in the last emission stage. @G_SIGNAL_NO_RECURSE: Signals being emitted for an object while currently being in emission for this very object will not be emitted recursively, but instead cause the first emission to be restarted. @G_SIGNAL_DETAILED: This signal supports "::detail" appendices to the signal name upon handler connections and emissions. @G_SIGNAL_ACTION: Action signals are signals that may freely be emitted on alive objects from user code via g_signal_emit() and friends, without the need of being embedded into extra code that performs pre or post emission adjustments on the object. They can also be thought of as object methods which can be called generically by third-party code. @G_SIGNAL_NO_HOOKS: No emissions hooks are supported for this signal. @G_SIGNAL_MUST_COLLECT: Varargs signal emission will always collect the arguments, even if there are no signal handlers connected. Since 2.30. @G_SIGNAL_DEPRECATED: The signal is deprecated and will be removed in a future version. A warning will be generated if it is connected while running with G_ENABLE_DIAGNOSTIC=1. Since 2.32. @G_SIGNAL_ACCUMULATOR_FIRST_RUN: Only used in GSignalAccumulator accumulator functions for the GSignalInvocationHint::run_type field to mark the first call to the accumulator function for a signal emission. Since 2.68.
The signal flags are used to specify a signal's behaviour.
Definition at line 138 of file gsignal.h.
| enum GSignalMatchType |
GSignalMatchType: @G_SIGNAL_MATCH_ID: The signal id must be equal. @G_SIGNAL_MATCH_DETAIL: The signal detail must be equal. @G_SIGNAL_MATCH_CLOSURE: The closure must be the same. @G_SIGNAL_MATCH_FUNC: The C closure callback must be the same. @G_SIGNAL_MATCH_DATA: The closure data must be the same. @G_SIGNAL_MATCH_UNBLOCKED: Only unblocked signals may be matched.
The match types specify what g_signal_handlers_block_matched(), g_signal_handlers_unblock_matched() and g_signal_handlers_disconnect_matched() match signals by.
| Enumerator | |
|---|---|
| G_SIGNAL_MATCH_ID | |
| G_SIGNAL_MATCH_DETAIL | |
| G_SIGNAL_MATCH_CLOSURE | |
| G_SIGNAL_MATCH_FUNC | |
| G_SIGNAL_MATCH_DATA | |
| G_SIGNAL_MATCH_UNBLOCKED | |
Definition at line 189 of file gsignal.h.
| void _g_signals_destroy | ( | GType | itype | ) |
| GOBJECT_AVAILABLE_IN_2_62 void g_clear_signal_handler | ( | gulong * | handler_id_ptr, |
| gpointer | instance ) |
| GOBJECT_AVAILABLE_IN_ALL gboolean g_signal_accumulator_first_wins | ( | GSignalInvocationHint * | ihint, |
| GValue * | return_accu, | ||
| const GValue * | handler_return, | ||
| gpointer | dummy ) |
| GOBJECT_AVAILABLE_IN_ALL gboolean g_signal_accumulator_true_handled | ( | GSignalInvocationHint * | ihint, |
| GValue * | return_accu, | ||
| const GValue * | handler_return, | ||
| gpointer | dummy ) |
| GOBJECT_AVAILABLE_IN_ALL gulong g_signal_add_emission_hook | ( | guint | signal_id, |
| GQuark | detail, | ||
| GSignalEmissionHook | hook_func, | ||
| gpointer | hook_data, | ||
| GDestroyNotify | data_destroy ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_chain_from_overridden | ( | const GValue * | instance_and_params, |
| GValue * | return_value ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_chain_from_overridden_handler | ( | gpointer | instance, |
| ... ) |
| GOBJECT_AVAILABLE_IN_ALL gulong g_signal_connect_closure | ( | gpointer | instance, |
| const gchar * | detailed_signal, | ||
| GClosure * | closure, | ||
| gboolean | after ) |
| GOBJECT_AVAILABLE_IN_ALL gulong g_signal_connect_closure_by_id | ( | gpointer | instance, |
| guint | signal_id, | ||
| GQuark | detail, | ||
| GClosure * | closure, | ||
| gboolean | after ) |
| GOBJECT_AVAILABLE_IN_ALL gulong g_signal_connect_data | ( | gpointer | instance, |
| const gchar * | detailed_signal, | ||
| GCallback | c_handler, | ||
| gpointer | data, | ||
| GClosureNotify | destroy_data, | ||
| GConnectFlags | connect_flags ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_emit | ( | gpointer | instance, |
| guint | signal_id, | ||
| GQuark | detail, | ||
| ... ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_emit_by_name | ( | gpointer | instance, |
| const gchar * | detailed_signal, | ||
| ... ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_emit_valist | ( | gpointer | instance, |
| guint | signal_id, | ||
| GQuark | detail, | ||
| va_list | var_args ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_emitv | ( | const GValue * | instance_and_params, |
| guint | signal_id, | ||
| GQuark | detail, | ||
| GValue * | return_value ) |
| GOBJECT_AVAILABLE_IN_ALL GSignalInvocationHint * g_signal_get_invocation_hint | ( | gpointer | instance | ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_handler_block | ( | gpointer | instance, |
| gulong | handler_id ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_handler_disconnect | ( | gpointer | instance, |
| gulong | handler_id ) |
| GOBJECT_AVAILABLE_IN_ALL gulong g_signal_handler_find | ( | gpointer | instance, |
| GSignalMatchType | mask, | ||
| guint | signal_id, | ||
| GQuark | detail, | ||
| GClosure * | closure, | ||
| gpointer | func, | ||
| gpointer | data ) |
| GOBJECT_AVAILABLE_IN_ALL gboolean g_signal_handler_is_connected | ( | gpointer | instance, |
| gulong | handler_id ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_handler_unblock | ( | gpointer | instance, |
| gulong | handler_id ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_handlers_block_matched | ( | gpointer | instance, |
| GSignalMatchType | mask, | ||
| guint | signal_id, | ||
| GQuark | detail, | ||
| GClosure * | closure, | ||
| gpointer | func, | ||
| gpointer | data ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_handlers_destroy | ( | gpointer | instance | ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_handlers_disconnect_matched | ( | gpointer | instance, |
| GSignalMatchType | mask, | ||
| guint | signal_id, | ||
| GQuark | detail, | ||
| GClosure * | closure, | ||
| gpointer | func, | ||
| gpointer | data ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_handlers_unblock_matched | ( | gpointer | instance, |
| GSignalMatchType | mask, | ||
| guint | signal_id, | ||
| GQuark | detail, | ||
| GClosure * | closure, | ||
| gpointer | func, | ||
| gpointer | data ) |
| GOBJECT_AVAILABLE_IN_ALL gboolean g_signal_has_handler_pending | ( | gpointer | instance, |
| guint | signal_id, | ||
| GQuark | detail, | ||
| gboolean | may_be_blocked ) |
| GOBJECT_AVAILABLE_IN_2_66 gboolean g_signal_is_valid_name | ( | const gchar * | name | ) |
| GOBJECT_AVAILABLE_IN_ALL guint * g_signal_list_ids | ( | GType | itype, |
| guint * | n_ids ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_lookup | ( | const gchar * | name, |
| GType | itype ) |
| GOBJECT_AVAILABLE_IN_ALL const gchar * g_signal_name | ( | guint | signal_id | ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_new | ( | const gchar * | signal_name, |
| GType | itype, | ||
| GSignalFlags | signal_flags, | ||
| guint | class_offset, | ||
| GSignalAccumulator | accumulator, | ||
| gpointer | accu_data, | ||
| GSignalCMarshaller | c_marshaller, | ||
| GType | return_type, | ||
| guint | n_params, | ||
| ... ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_new_class_handler | ( | const gchar * | signal_name, |
| GType | itype, | ||
| GSignalFlags | signal_flags, | ||
| GCallback | class_handler, | ||
| GSignalAccumulator | accumulator, | ||
| gpointer | accu_data, | ||
| GSignalCMarshaller | c_marshaller, | ||
| GType | return_type, | ||
| guint | n_params, | ||
| ... ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_new_valist | ( | const gchar * | signal_name, |
| GType | itype, | ||
| GSignalFlags | signal_flags, | ||
| GClosure * | class_closure, | ||
| GSignalAccumulator | accumulator, | ||
| gpointer | accu_data, | ||
| GSignalCMarshaller | c_marshaller, | ||
| GType | return_type, | ||
| guint | n_params, | ||
| va_list | args ) |
| GOBJECT_AVAILABLE_IN_ALL guint g_signal_newv | ( | const gchar * | signal_name, |
| GType | itype, | ||
| GSignalFlags | signal_flags, | ||
| GClosure * | class_closure, | ||
| GSignalAccumulator | accumulator, | ||
| gpointer | accu_data, | ||
| GSignalCMarshaller | c_marshaller, | ||
| GType | return_type, | ||
| guint | n_params, | ||
| GType * | param_types ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_override_class_closure | ( | guint | signal_id, |
| GType | instance_type, | ||
| GClosure * | class_closure ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_override_class_handler | ( | const gchar * | signal_name, |
| GType | instance_type, | ||
| GCallback | class_handler ) |
| GOBJECT_AVAILABLE_IN_ALL gboolean g_signal_parse_name | ( | const gchar * | detailed_signal, |
| GType | itype, | ||
| guint * | signal_id_p, | ||
| GQuark * | detail_p, | ||
| gboolean | force_detail_quark ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_query | ( | guint | signal_id, |
| GSignalQuery * | query ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_remove_emission_hook | ( | guint | signal_id, |
| gulong | hook_id ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_set_va_marshaller | ( | guint | signal_id, |
| GType | instance_type, | ||
| GSignalCVaMarshaller | va_marshaller ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_stop_emission | ( | gpointer | instance, |
| guint | signal_id, | ||
| GQuark | detail ) |
| GOBJECT_AVAILABLE_IN_ALL void g_signal_stop_emission_by_name | ( | gpointer | instance, |
| const gchar * | detailed_signal ) |
1.10.0