Finish removal of Q_UNUSED.

Todo: qcustomplot via upstream

Change-Id: I19cf98f1281ecb1f6efbb7d36c997d5aa43f5baf
Reviewed-on: https://code.wireshark.org/review/9547
Reviewed-by: Jörg Mayer <jmayer@loplof.de>

20 files changed, 38 insertions, 96 deletions

diff --git a/ui/qt/bluetooth_att_server_attributes_dialog.cpp b/ui/qt/bluetooth_att_server_attributes_dialog.cpp
index ffcdbfe403..1c89e97a29 100644
--- a/ui/qt/bluetooth_att_server_attributes_dialog.cpp
+++ b/ui/qt/bluetooth_att_server_attributes_dialog.cpp
@@ -368,9 +368,8 @@ void BluetoothAttServerAttributesDialog::on_actionSave_as_image_triggered()
     image.save(fileName, "PNG");
 }
 
-void BluetoothAttServerAttributesDialog::on_buttonBox_clicked(QAbstractButton *button)
+void BluetoothAttServerAttributesDialog::on_buttonBox_clicked(QAbstractButton *)
 {
-    Q_UNUSED(button);
 /*    if (button == foo_button_) */
 }
 
diff --git a/ui/qt/bluetooth_devices_dialog.cpp b/ui/qt/bluetooth_devices_dialog.cpp
index 06c5d882d7..38ade7e889 100644
--- a/ui/qt/bluetooth_devices_dialog.cpp
+++ b/ui/qt/bluetooth_devices_dialog.cpp
@@ -393,9 +393,8 @@ void BluetoothDevicesDialog::on_actionSave_as_image_triggered()
     image.save(fileName, "PNG");
 }
 
-void BluetoothDevicesDialog::on_buttonBox_clicked(QAbstractButton *button)
+void BluetoothDevicesDialog::on_buttonBox_clicked(QAbstractButton *)
 {
-    Q_UNUSED(button);
 /*    if (button == foo_button_) */
 }
 
diff --git a/ui/qt/byte_view_text.cpp b/ui/qt/byte_view_text.cpp
index e8b11e017e..c2090701a9 100644
--- a/ui/qt/byte_view_text.cpp
+++ b/ui/qt/byte_view_text.cpp
@@ -99,10 +99,8 @@ void ByteViewText::setProtocolHighlight(int start, int end)
     viewport()->update();
 }
 
-void ByteViewText::setFieldHighlight(int start, int end, guint32 mask, int mask_le)
+void ByteViewText::setFieldHighlight(int start, int end, guint32, int)
 {
-    Q_UNUSED(mask);
-    Q_UNUSED(mask_le);
     f_bound_ = QPair<guint, guint>(qMax(0, start), qMax(0, end));
     f_bound_save_ = f_bound_;
     scrollToByte(start);
diff --git a/ui/qt/capture_file_dialog.cpp b/ui/qt/capture_file_dialog.cpp
index 2f473b9fe6..6803ec5615 100644
--- a/ui/qt/capture_file_dialog.cpp
+++ b/ui/qt/capture_file_dialog.cpp
@@ -67,17 +67,13 @@ extern void capture_start_confirmed(void) {
 /** Open a new file coming from drag and drop.
  * @param cf_names_freeme the selection data reported from GTK
  */
-extern void dnd_open_file_cmd(gchar *cf_names_freeme) {
-    Q_UNUSED(cf_names_freeme);
-}
-
+extern void dnd_open_file_cmd(gchar *) {
 // From gtk/menus.h & main_menubar.c
 /** User pushed a recent file submenu item.
  *
  * @param widget parent widget
  */
-extern void menu_open_recent_file_cmd(gpointer action){
-    Q_UNUSED(action)
+extern void menu_open_recent_file_cmd(gpointer){
 }
 
 /** One of the name resolution menu items changed. */
diff --git a/ui/qt/capture_file_progress_frame.cpp b/ui/qt/capture_file_progress_frame.cpp
index 329510f715..8d3d0b82f4 100644
--- a/ui/qt/capture_file_progress_frame.cpp
+++ b/ui/qt/capture_file_progress_frame.cpp
@@ -38,11 +38,8 @@
 // - Start adding the progress bar to dialogs.
 // - Don't complain so loudly when the user stops a capture.
 
-progdlg_t *create_progress_dlg(const gpointer top_level_window, const gchar *task_title, const gchar *item_title,
+progdlg_t *create_progress_dlg(const gpointer top_level_window, const gchar *, const gchar *,
                                gboolean terminate_is_stop, gboolean *stop_flag) {
-    Q_UNUSED(task_title);
-    Q_UNUSED(item_title);
-
     CaptureFileProgressFrame *cfpf;
     QWidget *main_window;
 
@@ -67,9 +64,8 @@ progdlg_t *create_progress_dlg(const gpointer top_level_window, const gchar *tas
 progdlg_t *
 delayed_create_progress_dlg(const gpointer top_level_window, const gchar *task_title, const gchar *item_title,
                             gboolean terminate_is_stop, gboolean *stop_flag,
-                            const GTimeVal *start_time, gfloat progress)
+                            const GTimeVal *, gfloat progress)
 {
-    Q_UNUSED(start_time);
     progdlg_t *progress_dialog = create_progress_dlg(top_level_window, task_title, item_title, terminate_is_stop, stop_flag);
     update_progress_dlg(progress_dialog, progress, item_title);
     return progress_dialog;
@@ -79,9 +75,8 @@ delayed_create_progress_dlg(const gpointer top_level_window, const gchar *task_t
  * Update the progress information of the progress bar box.
  */
 void
-update_progress_dlg(progdlg_t *dlg, gfloat percentage, const gchar *status)
+update_progress_dlg(progdlg_t *dlg, gfloat percentage, const gchar *)
 {
-    Q_UNUSED(status);
     if (!dlg) return;
 
     dlg->progress_frame->setValue(percentage * 100);
diff --git a/ui/qt/capture_info_dialog.cpp b/ui/qt/capture_info_dialog.cpp
index 107d493773..01debd8009 100644
--- a/ui/qt/capture_info_dialog.cpp
+++ b/ui/qt/capture_info_dialog.cpp
@@ -31,11 +31,9 @@
 /* create the capture info dialog */
 /* will keep pointers to the fields in the counts parameter */
 void capture_info_ui_create(
-capture_info    *cinfo,
-capture_session *cap_session)
+capture_info    *,
+capture_session *)
 {
-    Q_UNUSED(cinfo);
-    Q_UNUSED(cap_session);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_create");
 }
 
@@ -43,17 +41,15 @@ capture_session *cap_session)
 /* As this function is a bit time critical while capturing, */
 /* prepare everything possible in the capture_info_ui_create() function above! */
 void capture_info_ui_update(
-capture_info    *cinfo)
+capture_info    *)
 {
-    Q_UNUSED(cinfo);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_update");
 }
 
 /* destroy the capture info dialog again */
 void capture_info_ui_destroy(
-capture_info    *cinfo)
+capture_info    *)
 {
-    Q_UNUSED(cinfo);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_destroy");
 }
 
diff --git a/ui/qt/capture_interfaces_dialog.cpp b/ui/qt/capture_interfaces_dialog.cpp
index 13c035b799..03613860c6 100644
--- a/ui/qt/capture_interfaces_dialog.cpp
+++ b/ui/qt/capture_interfaces_dialog.cpp
@@ -202,10 +202,8 @@ void CaptureInterfacesDialog::updateWidgets()
     start_bt_->setEnabled(can_capture);
 }
 
-void CaptureInterfacesDialog::interfaceClicked(QTreeWidgetItem *item, int column)
+void CaptureInterfacesDialog::interfaceClicked(QTreeWidgetItem *, int)
 {
-    Q_UNUSED(item)
-    Q_UNUSED(column)
     guint i;
     QString filter = ui->allFilterComboBox->currentText();
 
@@ -916,9 +914,8 @@ InterfaceTreeDelegate::~InterfaceTreeDelegate()
 }
 
 
-QWidget* InterfaceTreeDelegate::createEditor( QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index ) const
+QWidget* InterfaceTreeDelegate::createEditor( QWidget *parent, const QStyleOptionViewItem &, const QModelIndex &index ) const
 {
-    Q_UNUSED(option);
     QWidget *w = NULL;
 #ifdef SHOW_BUFFER_COLUMN
     gint buffer = DEFAULT_CAPTURE_BUFFER_SIZE;
diff --git a/ui/qt/capture_preferences_frame.cpp b/ui/qt/capture_preferences_frame.cpp
index e1185a680f..4bb8192111 100644
--- a/ui/qt/capture_preferences_frame.cpp
+++ b/ui/qt/capture_preferences_frame.cpp
@@ -65,9 +65,8 @@ CapturePreferencesFrame::~CapturePreferencesFrame()
     delete ui;
 }
 
-void CapturePreferencesFrame::showEvent(QShowEvent *evt)
+void CapturePreferencesFrame::showEvent(QShowEvent *)
 {
-    Q_UNUSED(evt);
     updateWidgets();
 }
 
diff --git a/ui/qt/coloring_rules_dialog.cpp b/ui/qt/coloring_rules_dialog.cpp
index 94fa926f35..0170a2a257 100644
--- a/ui/qt/coloring_rules_dialog.cpp
+++ b/ui/qt/coloring_rules_dialog.cpp
@@ -374,9 +374,8 @@ void ColoringRulesDialog::on_buttonBox_helpRequested()
 // Delegate for editing coloring rule names and filters.
 //
 
-QWidget *ColoringRulesTreeDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
+QWidget *ColoringRulesTreeDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &, const QModelIndex &index) const
 {
-    Q_UNUSED(option);
     QWidget *w = NULL;
 
     QTreeWidgetItem *ti = tree_->topLevelItem(index.row());
diff --git a/ui/qt/compiled_filter_output.cpp b/ui/qt/compiled_filter_output.cpp
index c3d117b92a..00c5179cb1 100644
--- a/ui/qt/compiled_filter_output.cpp
+++ b/ui/qt/compiled_filter_output.cpp
@@ -109,10 +109,8 @@ void CompiledFilterOutput::compileFilter()
     }
 }
 
-void CompiledFilterOutput::on_interfaceList_currentItemChanged(QListWidgetItem *current, QListWidgetItem *previous)
+void CompiledFilterOutput::on_interfaceList_currentItemChanged(QListWidgetItem *current, QListWidgetItem *)
 {
-    Q_UNUSED(previous);
-
     QString interface = current->text();
     QHash<QString, QString>::const_iterator iter = compile_results.find(interface);
     ui->filterList->clear();
diff --git a/ui/qt/conversation_dialog.cpp b/ui/qt/conversation_dialog.cpp
index f9604ee5e6..545973f77b 100644
--- a/ui/qt/conversation_dialog.cpp
+++ b/ui/qt/conversation_dialog.cpp
@@ -279,9 +279,8 @@ void ConversationDialog::itemSelectionChanged()
     graph_bt_->setEnabled(graph_enable);
 }
 
-void ConversationDialog::on_nameResolutionCheckBox_toggled(bool checked)
+void ConversationDialog::on_nameResolutionCheckBox_toggled(bool)
 {
-    Q_UNUSED(checked);
     updateWidgets();
 }
 
@@ -314,7 +313,6 @@ void ConversationDialog::on_buttonBox_helpRequested()
 
 void init_conversation_table(struct register_ct* ct, const char *filter)
 {
-    Q_UNUSED(ct)
     wsApp->emitStatCommandSignal("Conversations", filter, GINT_TO_POINTER(get_conversation_proto_id(ct)));
 }
 
diff --git a/ui/qt/decode_as_dialog.cpp b/ui/qt/decode_as_dialog.cpp
index 5afb1efedb..f2854d8163 100644
--- a/ui/qt/decode_as_dialog.cpp
+++ b/ui/qt/decode_as_dialog.cpp
@@ -195,9 +195,8 @@ void DecodeAsDialog::on_decodeAsTreeWidget_currentItemChanged(QTreeWidgetItem *c
     }
 }
 
-void DecodeAsDialog::on_decodeAsTreeWidget_itemActivated(QTreeWidgetItem *item, int column)
+void DecodeAsDialog::on_decodeAsTreeWidget_itemActivated(QTreeWidgetItem *item, int)
 {
-    Q_UNUSED(column);
     GList *cur;
 
     table_names_combo_box_ = new QComboBox();
@@ -286,10 +285,8 @@ void DecodeAsDialog::on_decodeAsTreeWidget_itemSelectionChanged()
     }
 }
 
-void DecodeAsDialog::buildChangedList(const gchar *table_name, ftenum_t selector_type, gpointer key, gpointer value, gpointer user_data)
+void DecodeAsDialog::buildChangedList(const gchar *table_name, ftenum_t, gpointer key, gpointer value, gpointer user_data)
 {
-    Q_UNUSED(selector_type);
-
     DecodeAsDialog *da_dlg = (DecodeAsDialog *)user_data;
     if (!da_dlg) return;
 
@@ -321,10 +318,8 @@ void DecodeAsDialog::buildChangedList(const gchar *table_name, ftenum_t selector
     da_dlg->ui->decodeAsTreeWidget->addTopLevelItem(item);
 }
 
-void DecodeAsDialog::buildDceRpcChangedList(gpointer data, gpointer user_data)
+void DecodeAsDialog::buildDceRpcChangedList(gpointer, gpointer)
 {
-    Q_UNUSED(data);
-    Q_UNUSED(user_data);
     //    decode_dcerpc_bind_values_t *binding = (decode_dcerpc_bind_values_t *)data;
 }
 
@@ -401,11 +396,8 @@ void DecodeAsDialog::tableNamesDestroyed()
     table_names_combo_box_ = NULL;
 }
 
-void DecodeAsDialog::decodeAddProtocol(const gchar *table_name, const gchar *proto_name, gpointer value, gpointer user_data)
+void DecodeAsDialog::decodeAddProtocol(const gchar *, const gchar *proto_name, gpointer value, gpointer user_data)
 {
-    Q_UNUSED(table_name);
-    Q_UNUSED(value);
-
     QSet<dissector_info_t *> *dissector_info_set = (QSet<dissector_info_t *> *)user_data;
     if (!dissector_info_set) return;
 
diff --git a/ui/qt/endpoint_dialog.cpp b/ui/qt/endpoint_dialog.cpp
index 62023ec935..db3cce634f 100644
--- a/ui/qt/endpoint_dialog.cpp
+++ b/ui/qt/endpoint_dialog.cpp
@@ -207,7 +207,6 @@ void EndpointDialog::on_buttonBox_helpRequested()
 
 void init_endpoint_table(struct register_ct* ct, const char *filter)
 {
-    Q_UNUSED(ct)
     wsApp->emitStatCommandSignal("Endpoints", filter, GINT_TO_POINTER(get_conversation_proto_id(ct)));
 }
 
diff --git a/ui/qt/export_object_dialog.cpp b/ui/qt/export_object_dialog.cpp
index 84ce31fe82..4812486669 100644
--- a/ui/qt/export_object_dialog.cpp
+++ b/ui/qt/export_object_dialog.cpp
@@ -214,10 +214,8 @@ void ExportObjectDialog::on_buttonBox_helpRequested()
     wsApp->helpTopicAction(HELP_EXPORT_OBJECT_LIST);
 }
 
-void ExportObjectDialog::on_objectTree_currentItemChanged(QTreeWidgetItem *item, QTreeWidgetItem *previous)
+void ExportObjectDialog::on_objectTree_currentItemChanged(QTreeWidgetItem *item, QTreeWidgetItem *)
 {
-    Q_UNUSED(previous);
-
     if (!item) {
         if (save_bt_) save_bt_->setEnabled(false);
         return;
diff --git a/ui/qt/extcap_argument.cpp b/ui/qt/extcap_argument.cpp
index f8c2d7a50d..ab1916db8d 100644
--- a/ui/qt/extcap_argument.cpp
+++ b/ui/qt/extcap_argument.cpp
@@ -567,9 +567,8 @@ QWidget * ExtcapArgument::createLabel(QWidget * parent)
     return label;
 }
 
-QWidget * ExtcapArgument::createEditor(QWidget * parent)
+QWidget * ExtcapArgument::createEditor(QWidget *)
 {
-    Q_UNUSED(parent);
     return 0;
 }
 
diff --git a/ui/qt/file_set_dialog.cpp b/ui/qt/file_set_dialog.cpp
index 09e34a7c31..506b58fa10 100644
--- a/ui/qt/file_set_dialog.cpp
+++ b/ui/qt/file_set_dialog.cpp
@@ -167,10 +167,8 @@ void FileSetDialog::on_buttonBox_helpRequested()
     wsApp->helpTopicAction(HELP_FILESET_DIALOG);
 }
 
-void FileSetDialog::on_fileSetTree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous)
+void FileSetDialog::on_fileSetTree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *)
 {
-    Q_UNUSED(previous);
-
     fileset_entry *entry;
 
     if (!current)
diff --git a/ui/qt/follow_stream_dialog.cpp b/ui/qt/follow_stream_dialog.cpp
index c29ebe9d78..84a8e1983a 100644
--- a/ui/qt/follow_stream_dialog.cpp
+++ b/ui/qt/follow_stream_dialog.cpp
@@ -368,10 +368,8 @@ FollowStreamDialog::readStream()
 //Copy from ui/gtk/follow_udp.c
 static int
 udp_queue_packet_data(void *tapdata, packet_info *pinfo,
-                      epan_dissect_t *edt, const void *data)
+                      epan_dissect_t *, const void *data)
 {
-    Q_UNUSED(edt);
-
     follow_record_t *follow_record;
     follow_info_t *follow_info = (follow_info_t *)tapdata;
     tvbuff_t *next_tvb = (tvbuff_t *)data;
@@ -403,10 +401,8 @@ udp_queue_packet_data(void *tapdata, packet_info *pinfo,
 
 //Copy from ui/gtk/follow_ssl.c
 static int
-ssl_queue_packet_data(void *tapdata, packet_info *pinfo, epan_dissect_t *edt, const void *ssl)
+ssl_queue_packet_data(void *tapdata, packet_info *pinfo, epan_dissect_t *, const void *ssl)
 {
-    Q_UNUSED(edt);
-
     follow_info_t *      follow_info = (follow_info_t*) tapdata;
     SslDecryptedRecord * rec = NULL;
     SslDataInfo *        appl_data = NULL;
@@ -597,9 +593,8 @@ void FollowStreamDialog::addText(QString text, gboolean is_from_server, guint32
 // / (slash), Ctrl-F - Focus and highlight the search box
 // Ctrl-G, Ctrl-N, F3 - Find next
 // Should we make it so that typing any text starts searching?
-bool FollowStreamDialog::eventFilter(QObject *obj, QEvent *event)
+bool FollowStreamDialog::eventFilter(QObject *, QEvent *event)
 {
-    Q_UNUSED(obj);
     if (ui->teStreamContent->hasFocus() && event->type() == QEvent::KeyPress) {
         QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
         if (keyEvent->matches(QKeySequence::SelectAll) || keyEvent->matches(QKeySequence::Copy)
diff --git a/ui/qt/font_color_preferences_frame.cpp b/ui/qt/font_color_preferences_frame.cpp
index ce677139da..ca9686a91a 100644
--- a/ui/qt/font_color_preferences_frame.cpp
+++ b/ui/qt/font_color_preferences_frame.cpp
@@ -65,10 +65,8 @@ FontColorPreferencesFrame::~FontColorPreferencesFrame()
     delete ui;
 }
 
-void FontColorPreferencesFrame::showEvent(QShowEvent *evt)
+void FontColorPreferencesFrame::showEvent(QShowEvent *)
 {
-    Q_UNUSED(evt)
-
     GRand *rand_state = g_rand_new();
     QString pangram = QString(font_pangrams_[g_rand_int_range(rand_state, 0, num_font_pangrams_)]) + " 0123456789";
     ui->fontSampleLineEdit->setText(pangram);
diff --git a/ui/qt/interface_tree.cpp b/ui/qt/interface_tree.cpp
index b4678d8d1e..7e1c91a74a 100644
--- a/ui/qt/interface_tree.cpp
+++ b/ui/qt/interface_tree.cpp
@@ -107,9 +107,7 @@ void InterfaceTree::resetColumnCount()
     setColumnCount(IFTREE_COL_MAX);
 }
 
-void InterfaceTree::hideEvent(QHideEvent *evt) {
-    Q_UNUSED(evt);
-
+void InterfaceTree::hideEvent(QHideEvent *) {
 #ifdef HAVE_LIBPCAP
     if (stat_timer_) stat_timer_->stop();
     if (stat_cache_) {
@@ -119,17 +117,15 @@ void InterfaceTree::hideEvent(QHideEvent *evt) {
 #endif // HAVE_LIBPCAP
 }
 
-void InterfaceTree::showEvent(QShowEvent *evt) {
-    Q_UNUSED(evt);
-
+void InterfaceTree::showEvent(QShowEvent *) {
 #ifdef HAVE_LIBPCAP
     if (stat_timer_) stat_timer_->start(stat_update_interval_);
 #endif // HAVE_LIBPCAP
 }
+
 #include <QDebug>
-void InterfaceTree::resizeEvent(QResizeEvent *evt)
+void InterfaceTree::resizeEvent(QResizeEvent *)
 {
-    Q_UNUSED(evt);
     int max_if_width = width() * 2 / 3; // Arbitrary
 
     setUpdatesEnabled(false);
diff --git a/ui/qt/io_graph_dialog.cpp b/ui/qt/io_graph_dialog.cpp
index 1d6a2f916d..c25cc846dd 100644
--- a/ui/qt/io_graph_dialog.cpp
+++ b/ui/qt/io_graph_dialog.cpp
@@ -155,8 +155,7 @@ static uat_field_t io_graph_fields[] = {
     UAT_END_FIELDS
 };
 
-static void* io_graph_copy_cb(void* dst_ptr, const void* src_ptr, size_t len) {
-    Q_UNUSED(len);
+static void* io_graph_copy_cb(void* dst_ptr, const void* src_ptr, size_t) {
     io_graph_settings_t* dst = (io_graph_settings_t *)dst_ptr;
     const io_graph_settings_t* src = (const io_graph_settings_t *)src_ptr;
 
@@ -884,9 +883,8 @@ void IOGraphDialog::mouseReleased(QMouseEvent *event)
     }
 }
 
-void IOGraphDialog::focusChanged(QWidget *previous, QWidget *current)
+void IOGraphDialog::focusChanged(QWidget *, QWidget *current)
 {
-    Q_UNUSED(previous);
     QTreeWidgetItem *item = ui->graphTreeWidget->currentItem();
     if (!item) {
         return;
@@ -1119,10 +1117,8 @@ void IOGraphDialog::comboDestroyed()
     }
 }
 
-void IOGraphDialog::on_intervalComboBox_currentIndexChanged(int index)
+void IOGraphDialog::on_intervalComboBox_currentIndexChanged(int)
 {
-    Q_UNUSED(index);
-
     int interval = ui->intervalComboBox->itemData(ui->intervalComboBox->currentIndex()).toInt();
     bool need_retap = false;
 
@@ -1158,10 +1154,8 @@ void IOGraphDialog::on_todCheckBox_toggled(bool checked)
     ui->ioPlot->xAxis->moveRange(start_time_ - orig_start);
 }
 
-void IOGraphDialog::on_graphTreeWidget_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous)
+void IOGraphDialog::on_graphTreeWidget_currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *previous)
 {
-    Q_UNUSED(current);
-
     if (previous && ui->graphTreeWidget->itemWidget(previous, name_col_)) {
         itemEditingFinished(previous);
     }
@@ -2106,9 +2100,8 @@ void IOGraph::tapReset(void *iog_ptr)
 }
 
 // "tap_packet" callback for register_tap_listener
-gboolean IOGraph::tapPacket(void *iog_ptr, packet_info *pinfo, epan_dissect_t *edt, const void *data)
+gboolean IOGraph::tapPacket(void *iog_ptr, packet_info *pinfo, epan_dissect_t *edt, const void *)
 {
-    Q_UNUSED(data);
     IOGraph *iog = static_cast<IOGraph *>(iog_ptr);
     if (!pinfo || !iog) {
         return FALSE;