自学教程：C++ update_label函数代码示例

static int		recv_backup	(CalcHandle* handle, BackupContent* content){	char varname[9] = { 0 };	g_snprintf(update_->text, sizeof(update_->text), _("Waiting for backup..."));    update_label();	content->model = CALC_TI86;	strcpy(content->comment, tifiles_comment_set_backup());    TRYF(ti85_recv_VAR(&(content->data_length1), &content->type, varname));    content->data_length2 = (uint8_t)varname[0] | ((uint8_t)varname[1] << 8);    content->data_length3 = (uint8_t)varname[2] | ((uint8_t)varname[3] << 8);    content->data_length4 = (uint8_t)varname[4] | ((uint8_t)varname[5] << 8);    TRYF(ti85_send_ACK());    TRYF(ti85_send_CTS());    TRYF(ti85_recv_ACK(NULL));    strcpy(update_->text, "");	update_label();	update_->cnt2 = 0;	update_->max2 = 4;	update_->pbar();    content->data_part1 = tifiles_ve_alloc_data(65536);    TRYF(ti85_recv_XDP(&content->data_length1, content->data_part1));    TRYF(ti85_send_ACK());    update_->cnt2++;	update_->pbar();    content->data_part2 = tifiles_ve_alloc_data(65536);    TRYF(ti85_recv_XDP(&content->data_length2, content->data_part2));    TRYF(ti85_send_ACK());    update_->cnt2++;	update_->pbar();    if (content->data_length3) 	{      content->data_part3 = tifiles_ve_alloc_data(65536);      TRYF(ti85_recv_XDP(&content->data_length3, content->data_part3));      TRYF(ti85_send_ACK());    } else      content->data_part3 = NULL;    update_->cnt2++;	update_->pbar();    content->data_part4 = tifiles_ve_alloc_data(65536);    TRYF(ti85_recv_XDP(&content->data_length4, content->data_part4));    TRYF(ti85_send_ACK());    update_->cnt2++;	update_->pbar();	return 0;}

static int		del_var		(CalcHandle* handle, VarRequest* vr){	unsigned int i;	char *utf8;	utf8 = ticonv_varname_to_utf8(handle->model, vr->name, vr->type);	g_snprintf(update_->text, sizeof(update_->text), _("Deleting %s..."), utf8);	g_free(utf8);	update_label();	send_key(handle, 0x0040);	// Quit	send_key(handle, 0x0009);	// Clear	send_key(handle, 0x0009);	// Clear	send_key(handle, 0x003e);	// Catalog	send_key(handle, 0x009d);	// D	send_key(handle, 0x0004);	// Down	send_key(handle, 0x0004);	// Down	send_key(handle, 0x0004);	// Down	send_key(handle, 0x0005);	// Enter		for(i = 0; i < strlen(vr->name); i++)	{		char c = toupper(vr->name[i]);		if(isdigit(c))			send_key(handle, (uint16_t)(0x008e + c - '0'));		else			send_key(handle, (uint16_t)(0x009a + c - 'A'));	}	send_key(handle, 0x0005);	// Enter	return 0;}

static int		rename_var	(CalcHandle* handle, VarRequest* oldname, VarRequest* newname){	char *utf81, *utf82;	char *path1, *path2;	int ret;	ret = nsp_session_open(handle, NSP_SID_FILE_MGMT);	if (ret)	{		return ret;	}	path1 = build_path(handle->model, oldname);	path2 = build_path(handle->model, newname);	utf81 = ticonv_varname_to_utf8(handle->model, path1, oldname->type);	utf82 = ticonv_varname_to_utf8(handle->model, path2, newname->type);	ticalcs_slprintf(update_->text, sizeof(update_->text), _("Renaming %s to %s..."), utf81, utf82);	ticonv_utf8_free(utf82);	ticonv_utf8_free(utf81);	update_label();	ret = nsp_cmd_s_rename_file(handle, path1, path2);	g_free(path2);	g_free(path1);	if (!ret)	{		ret = nsp_cmd_r_rename_file(handle);	}	DO_CLOSE_SESSION(handle);	return ret;}

static int		recv_var	(CalcHandle* handle, CalcMode mode, FileContent* content, VarRequest* vr){	char *path;	uint8_t *data = NULL;	VarEntry *ve;	char *utf8;	int err;	const char * dot_if_any = ".";	TRYF(nsp_session_open(handle, SID_FILE_MGMT));	// Don't add a dot if this file type is unknown.	if (vr->type >= NSP_MAXTYPES)		dot_if_any = "";	path = g_strconcat("/", vr->folder, "/", vr->name, dot_if_any, 		tifiles_vartype2fext(handle->model, vr->type), NULL);	utf8 = ticonv_varname_to_utf8(handle->model, path, vr->type);	g_snprintf(update_->text, sizeof(update_->text), "%s", utf8);	g_free(utf8);	update_label();	err = nsp_cmd_s_get_file(handle, path);	g_free(path);	if (err)	{		return err;	}	TRYF(nsp_cmd_r_get_file(handle, &(vr->size)));	TRYF(nsp_cmd_s_file_ok(handle));	if (vr->size)		TRYF(nsp_cmd_r_file_contents(handle, &(vr->size), &data));	TRYF(nsp_cmd_s_status(handle, ERR_OK));	content->model = handle->model;	strcpy(content->comment, tifiles_comment_set_single());	content->num_entries = 1;	content->entries = tifiles_ve_create_array(1);	ve = content->entries[0] = tifiles_ve_create();	memcpy(ve, vr, sizeof(VarEntry));	ve->data = tifiles_ve_alloc_data(ve->size);	if (data && ve->data)	{		memcpy(ve->data, data, ve->size);	}	g_free(data);	// XXX don't check the result of this call, to enable reception of variables from Nspires running OS >= 1.7.	// Those versions send a martian packet:	// * a src port never seen before in the conversation;	// * an improper dest port;	// * a 1-byte payload containing 02 (i.e. an invalid address for the next packet).	// * .ack = 0x00 (instead of 0x0A).	nsp_session_close(handle);	return 0;}

static int		new_folder  (CalcHandle* handle, VarRequest* vr){	uint8_t data[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x40, 0x00, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23 };	char varname[18];	char *utf8;	tifiles_build_fullname(handle->model, varname, vr->folder, "a1234567");	utf8 = ticonv_varname_to_utf8(handle->model, vr->folder, -1);	g_snprintf(update_->text, sizeof(update_->text), _("Creating %s..."), utf8);	g_free(utf8);	update_label();	// send empty expression	TRYF(ti92_send_RTS(0x10, 0x00, varname));	TRYF(ti92_recv_ACK(NULL));	TRYF(ti92_recv_CTS());	TRYF(ti92_send_ACK());	TRYF(ti92_send_XDP(0x10, data));	TRYF(ti92_recv_ACK(NULL));	TRYF(ti92_send_EOT());	TRYF(ti92_recv_ACK(NULL));	// delete 'a1234567' variable	strcpy(vr->name, "a1234567");	TRYF(del_var(handle, vr));	return 0;}

static int		new_folder  (CalcHandle* handle, VarRequest* vr){	char *utf8;	char *path;	int err;	TRYF(nsp_session_open(handle, SID_FILE_MGMT));	path = g_strconcat("/", vr->folder, NULL);	utf8 = ticonv_varname_to_utf8(handle->model, path, -1);	g_snprintf(update_->text, sizeof(update_->text), _("Creating %s..."), utf8);	g_free(utf8);	update_label();	err = nsp_cmd_s_new_folder(handle, path);	g_free(path);	if (err)	{		return err;	}	TRYF(nsp_cmd_r_new_folder(handle));	TRYF(nsp_session_close(handle));	return 0;}

void multimenu_button::select_options(boost::dynamic_bitset<> states){	assert(states.size() == values_.size());	toggle_states_ = states;	update_config_from_toggle_states();	update_label();}

static int		new_folder  (CalcHandle* handle, VarRequest* vr){	char *utf8;	char *path;	int ret;	ret = nsp_session_open(handle, NSP_SID_FILE_MGMT);	if (ret)	{		return ret;	}	path = g_strconcat("/", vr->folder, NULL);	utf8 = ticonv_varname_to_utf8(handle->model, path, -1);	ticalcs_slprintf(update_->text, sizeof(update_->text), _("Creating %s..."), utf8);	ticonv_utf8_free(utf8);	update_label();	ret = nsp_cmd_s_new_folder(handle, path);	g_free(path);	if (!ret)	{		ret = nsp_cmd_r_new_folder(handle);	}	DO_CLOSE_SESSION(handle);	return ret;}

static int		send_var	(CalcHandle* handle, CalcMode mode, FileContent* content){	uint8_t status;	gchar *path;	int ret;	VarEntry * entry;	update_->cnt2 = 0;	update_->max2 = 1;	update_->pbar();	entry = content->entries[0];	if (!ticalcs_validate_varentry(entry))	{		ticalcs_critical("%s: skipping invalid content entry #0", __FUNCTION__);		return ERR_INVALID_PARAMETER;	}	if (entry->action == ACT_SKIP)	{		return 0;	}	//if (!strlen(entry->folder))	//{	//	return ERR_ABORT;	//}	ret = nsp_session_open(handle, NSP_SID_FILE_MGMT);	if (ret)	{		return ret;	}	path = build_path(handle->model, entry);	ticonv_varname_to_utf8_sn(handle->model, path, update_->text, sizeof(update_->text), entry->type);	update_label();	ret = nsp_cmd_s_put_file(handle, path, entry->size);	g_free(path);	if (!ret)	{		ret = nsp_cmd_r_put_file(handle);		if (!ret)		{			ret = nsp_cmd_s_file_contents(handle, entry->size, entry->data);			if (!ret)			{				ret = nsp_cmd_r_status(handle, &status);			}		}	}	DO_CLOSE_SESSION(handle);	return ret;}

static intsetup_interface( void ){  GtkWidget *window, *treeview, *select_entry, *spawn_dialog, *spawn_label;  GtkCellRenderer *renderer;  gtk_window_set_default_icon_name( "gnome-dev-keyboard" );  wl = window_list_new();  xml = glade_xml_new( PREFIX "/share/keyboardcast/keyboardcast.glade",                       NULL, NULL );  if( xml == NULL )    return 1;  select_entry = glade_xml_get_widget( xml, "select-entry" );  treeview = glade_xml_get_widget( xml, "treeview" );  window = glade_xml_get_widget( xml, "window" );  spawn_dialog = glade_xml_get_widget( xml, "spawn-dialog" );  spawn_label = glade_xml_get_widget( xml, "spawn-label" );  if( select_entry == NULL || treeview == NULL ||      window == NULL || spawn_dialog == NULL || spawn_label == NULL )    return 1;  gtk_tree_view_set_model( GTK_TREE_VIEW( treeview ), GTK_TREE_MODEL( wl ) );  renderer = window_list_toggle_renderer( wl );  gtk_tree_view_insert_column_with_attributes( GTK_TREE_VIEW( treeview ), -1,                                               "
C++ update_menu函数代码示例
C++ update_irq函数代码示例