- tool->m_item = gtk_toolbar_append_element( m_toolbar, ctype, NULL, NULL, helpString1, "", tool_pixmap,
- (GtkSignalFunc)gtk_toolbar_callback, (gpointer)tool );
+ tool->m_item = gtk_toolbar_append_element(
+ m_toolbar, ctype, (GtkWidget *) NULL, (const char *) NULL, helpString1, "",
+ tool_pixmap, (GtkSignalFunc)gtk_toolbar_callback, (gpointer)tool );