Adding comments for translators

8 files changed, 72 insertions, 14 deletions

diff --git a/src/remmina.c b/src/remmina.c
index 7e323738e..a07da19a0 100644
--- a/src/remmina.c
+++ b/src/remmina.c
@@ -80,22 +80,38 @@ gboolean kioskmode;
 
 static GOptionEntry remmina_options[] =
 {
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "about",	      'a',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Show \'About\'"),								     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "connect",	      'c',  0,			  G_OPTION_ARG_FILENAME,       NULL, N_("Connect to desktop described in file (.remmina or type supported by plugin)"),	     "FILE"	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ G_OPTION_REMAINING, '\0', 0,			  G_OPTION_ARG_FILENAME_ARRAY, NULL, N_("Connect to desktop described in file (.remmina or type supported by plugin)"),	     "FILE"	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "edit",	      'e',  0,			  G_OPTION_ARG_FILENAME,       NULL, N_("Edit desktop connection described in file (.remmina or type supported by plugin)"), "FILE"	},
 	{ "help",	      '?',  G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE,	       NULL, NULL,										     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "kiosk",	      'k',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Start in kiosk mode"),							     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "new",	      'n',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Create new connection profile"),						     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "pref",	      'p',  0,			  G_OPTION_ARG_STRING,	       NULL, N_("Show preferences"),						     "PAGENR"	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "plugin",	      'x',  0,			  G_OPTION_ARG_STRING,	       NULL, N_("Run a plugin"),								     "PLUGIN"	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "quit",	      'q',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Quit"),							     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "server",	      's',  0,			  G_OPTION_ARG_STRING,	       NULL, N_("Use default server name (for --new)"),						     "SERVER"	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "protocol",	      't',  0,			  G_OPTION_ARG_STRING,	       NULL, N_("Use default protocol (for --new)"),						     "PROTOCOL" },
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "icon",	      'i',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Start in tray"),								     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "version",	      'v',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Show the application version"),						     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "full-version",     'V',  0,			  G_OPTION_ARG_NONE,	       NULL, N_("Show version of the application and its plugins"),		     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "update-profile",   0,    0,			  G_OPTION_ARG_FILENAME,       NULL, N_("Modify connection profile, (requires --set-option)"),			     NULL	},
+	/// TRANSLATORS: Shown in terminal. Do not use charcters that may be not supported on a terminal
 	{ "set-option",	      0,    0,			  G_OPTION_ARG_STRING_ARRAY,   NULL, N_("Set one or more profile settings, to be used with --update-profile"),		     NULL	},
 	{ NULL }
 };
diff --git a/src/remmina_about.c b/src/remmina_about.c
index 9723d63e7..c1c7d4d89 100644
--- a/src/remmina_about.c
+++ b/src/remmina_about.c
@@ -50,6 +50,7 @@ void remmina_about_open(GtkWindow *parent)
 	GtkDialog *dialog = GTK_DIALOG(gtk_builder_get_object(builder, "dialog_remmina_about"));
 
 	gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(dialog), VERSION " (git " REMMINA_GIT_REVISION ")");
+	/// TRANSLATORS: translator-credits should be replaced with a formatted list of translators in your own language
 	gtk_about_dialog_set_translator_credits(GTK_ABOUT_DIALOG(dialog), _("translator-credits"));
 
 	if (parent) {
diff --git a/src/remmina_main.c b/src/remmina_main.c
index 652275db4..9fd087a3e 100644
--- a/src/remmina_main.c
+++ b/src/remmina_main.c
@@ -921,6 +921,7 @@ static void remmina_main_import_file_list(GSList *files)
 	}
 	g_slist_free(files);
 	if (err->len > 0) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		dlg = gtk_message_dialog_new(remminamain->window, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
 			_("Unable to import:\n%s"), err->str);
 		g_signal_connect(G_OBJECT(dlg), "response", G_CALLBACK(gtk_widget_destroy), NULL);
diff --git a/src/remmina_pref_dialog.c b/src/remmina_pref_dialog.c
index 8c2363ad9..ea3f518de 100644
--- a/src/remmina_pref_dialog.c
+++ b/src/remmina_pref_dialog.c
@@ -440,6 +440,7 @@ static void remmina_pref_dialog_init(void)
 #else
 	gtk_switch_set_active(GTK_SWITCH(remmina_pref_dialog->switch_security_use_master_password), FALSE);
 	gtk_widget_set_sensitive(GTK_WIDGET(remmina_pref_dialog->switch_security_use_master_password), FALSE);
+	/// TRANSLATORS: Do not translate libsodium, is the name of a library
 	gtk_widget_set_tooltip_text (GTK_WIDGET(remmina_pref_dialog->switch_security_use_master_password), _("libsodium >= 1.9.0 is required to use master password"));
 	gtk_widget_set_sensitive(GTK_WIDGET(remmina_pref_dialog->unlock_password), FALSE);
 	gtk_widget_set_sensitive(GTK_WIDGET(remmina_pref_dialog->unlock_repassword), FALSE);
diff --git a/src/remmina_protocol_widget.c b/src/remmina_protocol_widget.c
index 1c2d6ddad..1232011d1 100644
--- a/src/remmina_protocol_widget.c
+++ b/src/remmina_protocol_widget.c
@@ -899,7 +899,8 @@ gboolean remmina_protocol_widget_ssh_exec(RemminaProtocolWidget *gp, gboolean wa
 			ret = TRUE;
 		}
 	} else {
-		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run command, %s"));
+		/// TRANSLATORS: %s is a placeholder for an error message
+		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run command: %s"));
 	}
 	g_free(cmd);
 	if (wait)
diff --git a/src/remmina_sftp_client.c b/src/remmina_sftp_client.c
index 872234d96..8370c7824 100644
--- a/src/remmina_sftp_client.c
+++ b/src/remmina_sftp_client.c
@@ -167,6 +167,7 @@ remmina_sftp_client_thread_download_file(RemminaSFTPClient *client, RemminaSFTP
 	if (tmp && tmp != buf) {
 		*tmp = '\0';
 		if (g_mkdir_with_parents(buf, 0755) < 0) {
+			/// TRANSLATORS: The placeholder %s is a directory path
 			remmina_sftp_client_thread_set_error(client, task, _("Error creating directory %s."), buf);
 			return FALSE;
 		}
@@ -174,6 +175,7 @@ remmina_sftp_client_thread_download_file(RemminaSFTPClient *client, RemminaSFTP
 
 	local_file = g_fopen(local_path, "ab");
 	if (!local_file) {
+			/// TRANSLATORS: The placeholder %s is a file path
 		remmina_sftp_client_thread_set_error(client, task, _("Error creating file %s."), local_path);
 		return FALSE;
 	}
@@ -194,6 +196,7 @@ remmina_sftp_client_thread_download_file(RemminaSFTPClient *client, RemminaSFTP
 			fclose(local_file);
 			local_file = g_fopen(local_path, "wb");
 			if (!local_file) {
+				/// TRANSLATORS: The placeholder %s is a file path
 				remmina_sftp_client_thread_set_error(client, task, _("Error creating file %s."), local_path);
 				return FALSE;
 			}
@@ -211,6 +214,7 @@ remmina_sftp_client_thread_download_file(RemminaSFTPClient *client, RemminaSFTP
 
 	if (!remote_file) {
 		fclose(local_file);
+		/// TRANSLATORS: The placeholders %s are a file path and a server name
 		remmina_sftp_client_thread_set_error(client, task, _("Error opening file %s on server. %s"),
 						     remote_path, ssh_get_error(REMMINA_SSH(client->sftp)->session));
 		return FALSE;
diff --git a/src/remmina_ssh.c b/src/remmina_ssh.c
index 229fd6031..494a3e37f 100644
--- a/src/remmina_ssh.c
+++ b/src/remmina_ssh.c
@@ -199,6 +199,7 @@ remmina_ssh_auth_password(RemminaSSH *ssh)
 
 	ret = ssh_userauth_password(ssh->session, NULL, ssh->password);
 	if (ret != SSH_AUTH_SUCCESS) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH password authentication failed: %s"));
 		return 0;
 	}
@@ -219,6 +220,7 @@ remmina_ssh_auth_pubkey(RemminaSSH *ssh)
 	if (ssh->authenticated) return 1;
 
 	if (ssh->privkeyfile == NULL) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		ssh->error = g_strdup_printf(_("SSH public key authentication failed: %s"),
 					     _("SSH Key file not yet set."));
 		return 0;
@@ -230,6 +232,7 @@ remmina_ssh_auth_pubkey(RemminaSSH *ssh)
 	if (g_file_test(pubkey, G_FILE_TEST_EXISTS)) {
 		ret = ssh_pki_import_pubkey_file(pubkey, &key);
 		if (ret != SSH_OK) {
+			/// TRANSLATORS: The placeholder %s is an error message
 			remmina_ssh_set_error(ssh, _("SSH public key cannot be imported: %s"));
 			return 0;
 		}
@@ -241,6 +244,7 @@ remmina_ssh_auth_pubkey(RemminaSSH *ssh)
 					NULL, NULL, &key) != SSH_OK) {
 		if (ssh->passphrase == NULL || ssh->passphrase[0] == '\0') return -1;
 
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH public key authentication failed: %s"));
 		return 0;
 	}
@@ -249,6 +253,7 @@ remmina_ssh_auth_pubkey(RemminaSSH *ssh)
 	ssh_key_free(key);
 
 	if (ret != SSH_AUTH_SUCCESS) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH public key authentication failed: %s"));
 		return 0;
 	}
@@ -290,6 +295,7 @@ remmina_ssh_auth_auto_pubkey(RemminaSSH *ssh, RemminaProtocolWidget *gp, Remmina
 	ret = ssh_userauth_publickey_auto(ssh->session, NULL, ssh->passphrase);
 
 	if (ret != SSH_AUTH_SUCCESS) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH automatic public key authentication failed: %s"));
 		return -1;
 	}
@@ -306,6 +312,7 @@ remmina_ssh_auth_agent(RemminaSSH *ssh)
 	ret = ssh_userauth_agent(ssh->session, NULL);
 
 	if (ret != SSH_AUTH_SUCCESS) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH public key authentication with SSH agent failed: %s"));
 		return 0;
 	}
@@ -325,6 +332,7 @@ remmina_ssh_auth_gssapi(RemminaSSH *ssh)
 	ret = ssh_userauth_gssapi(ssh->session);
 
 	if (ret != SSH_AUTH_SUCCESS) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH Kerberos/GSSAPI authentication failed: %s"));
 		return 0;
 	}
@@ -429,17 +437,20 @@ remmina_ssh_auth_gui(RemminaSSH *ssh, RemminaProtocolWidget *gp, RemminaFile *re
 	case SSH_SERVER_FOUND_OTHER:
 #if LIBSSH_VERSION_INT >= SSH_VERSION_INT(0, 8, 6)
 		if (ssh_get_server_publickey(ssh->session, &server_pubkey) != SSH_OK) {
+			/// TRANSLATORS: The placeholder %s is an error message
 			remmina_ssh_set_error(ssh, _("ssh_get_server_publickey() has failed: %s"));
 			return 0;
 		}
 #else
 		if (ssh_get_publickey(ssh->session, &server_pubkey) != SSH_OK) {
+			/// TRANSLATORS: The placeholder %s is an error message
 			remmina_ssh_set_error(ssh, _("ssh_get_publickey() has failed: %s"));
 			return 0;
 		}
 #endif
 		if (ssh_get_publickey_hash(server_pubkey, SSH_PUBLICKEY_HASH_MD5, &pubkey, &len) != 0) {
 			ssh_key_free(server_pubkey);
+			/// TRANSLATORS: The placeholder %s is an error message
 			remmina_ssh_set_error(ssh, _("ssh_get_publickey_hash() has failed: %s"));
 			return 0;
 		}
@@ -469,6 +480,7 @@ remmina_ssh_auth_gui(RemminaSSH *ssh, RemminaProtocolWidget *gp, RemminaFile *re
 		break;
 	case SSH_SERVER_ERROR:
 	default:
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("SSH known host checking failed: %s"));
 		return 0;
 	}
@@ -658,6 +670,7 @@ remmina_ssh_init_session(RemminaSSH *ssh)
 		ssh_options_parse_config(ssh->session, NULL);
 
 	if (ssh_connect(ssh->session)) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(ssh, _("Could not start SSH session: %s"));
 		return FALSE;
 	}
@@ -1016,7 +1029,8 @@ remmina_ssh_tunnel_create_forward_channel(RemminaSSHTunnel *tunnel)
 
 	channel = ssh_channel_new(tunnel->ssh.session);
 	if (!channel) {
-		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not create channel, %s"));
+		/// TRANSLATORS: The placeholder %s is an error message
+		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not create channel: %s"));
 		return NULL;
 	}
 
@@ -1026,7 +1040,8 @@ remmina_ssh_tunnel_create_forward_channel(RemminaSSHTunnel *tunnel)
 		ssh_channel_close(channel);
 		ssh_channel_send_eof(channel);
 		ssh_channel_free(channel);
-		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not connect to the SSH tunnel destination %s"));
+		/// TRANSLATORS: The placeholder %s is an error message
+		remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not connect to the SSH tunnel destination: %s"));
 		return NULL;
 	}
 
@@ -1076,7 +1091,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 
 	case REMMINA_SSH_TUNNEL_X11:
 		if ((tunnel->x11_channel = ssh_channel_new(tunnel->ssh.session)) == NULL) {
-			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not create channel, %s"));
+			/// TRANSLATORS: The placeholder %s is an error message
+			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not create channel: %s"));
 			tunnel->thread = 0;
 			return NULL;
 		}
@@ -1090,7 +1106,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 		    ssh_channel_request_x11(tunnel->x11_channel, TRUE, NULL, ptr,
 					    gdk_x11_screen_get_screen_number(gdk_screen_get_default()))) {
 			g_free(ptr);
-			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not open channel, %s"));
+			/// TRANSLATORS: The placeholder %s is an error message
+			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not open channel: %s"));
 			tunnel->thread = 0;
 			return NULL;
 		}
@@ -1133,7 +1150,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 #endif
 		}
 		if (tunnel->remotedisplay < 1) {
-			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding, %s"));
+			/// TRANSLATORS: The placeholder %s is an error message
+			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding: %s"));
 			if (tunnel->disconnect_func)
 				(*tunnel->disconnect_func)(tunnel, tunnel->callback_data);
 			tunnel->thread = 0;
@@ -1153,7 +1171,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 	case REMMINA_SSH_TUNNEL_REVERSE:
 #if LIBSSH_VERSION_INT >= SSH_VERSION_INT(0, 7, 0)
 		if (ssh_channel_listen_forward(REMMINA_SSH(tunnel)->session, NULL, tunnel->port, NULL)) {
-			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding, %s"));
+			/// TRANSLATORS: The placeholder %s is an error message
+			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding: %s"));
 			if (tunnel->disconnect_func)
 				(*tunnel->disconnect_func)(tunnel, tunnel->callback_data);
 			tunnel->thread = 0;
@@ -1161,7 +1180,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 		}
 #else
 		if (ssh_forward_listen(REMMINA_SSH(tunnel)->session, NULL, tunnel->port, NULL)) {
-			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding, %s"));
+			/// TRANSLATORS: The placeholder %s is an error message
+			remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not request port forwarding: %s"));
 			if (tunnel->disconnect_func)
 				(*tunnel->disconnect_func)(tunnel, tunnel->callback_data);
 			tunnel->thread = 0;
@@ -1284,13 +1304,15 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 						lenw = ssh_channel_write(tunnel->channels[i], (char *)ptr, len);
 						if (lenw <= 0) {
 							disconnected = TRUE;
-							remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_write(), %s"));
+							/// TRANSLATORS: The placeholder %s is an error message
+							remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_write(): %s"));
 							break;
 						}
 					}
 				}
 				if (len == 0) {
-					remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not read from tunnel listening socket, %s"));
+					/// TRANSLATORS: The placeholder %s is an error message
+					remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not read from tunnel listening socket: %s"));
 					disconnected = TRUE;
 				}
 			}
@@ -1309,13 +1331,15 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 			if (!tunnel->socketbuffers[i]) {
 				len = ssh_channel_poll(tunnel->channels[i], 0);
 				if (len == SSH_ERROR || len == SSH_EOF) {
-					remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_poll(), %s"));
+					/// TRANSLATORS: The placeholder %s is an error message
+					remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_poll(): %s"));
 					disconnected = TRUE;
 				} else if (len > 0) {
 					tunnel->socketbuffers[i] = remmina_ssh_tunnel_buffer_new(len);
 					len = ssh_channel_read_nonblocking(tunnel->channels[i], tunnel->socketbuffers[i]->data, len, 0);
 					if (len <= 0) {
-						remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_read_nonblocking(), %s"));
+						/// TRANSLATORS: The placeholder %s is an error message
+						remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not run ssh_channel_read_nonblocking(): %s"));
 						disconnected = TRUE;
 					} else {
 						tunnel->socketbuffers[i]->len = len;
@@ -1333,7 +1357,8 @@ remmina_ssh_tunnel_main_thread_proc(gpointer data)
 						 * break, leave the buffer there, and continue with other data */
 						break;
 					if (lenw <= 0) {
-						remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not send data to tunnel listening socket, %s"));
+						/// TRANSLATORS: The placeholder %s is an error message
+						remmina_ssh_set_error(REMMINA_SSH(tunnel), _("Could not send data to tunnel listening socket: %s"));
 						disconnected = TRUE;
 						break;
 					}
@@ -1444,6 +1469,7 @@ remmina_ssh_tunnel_open(RemminaSSHTunnel *tunnel, const gchar *host, gint port,
 	tunnel->running = TRUE;
 
 	if (pthread_create(&tunnel->thread, NULL, remmina_ssh_tunnel_main_thread, tunnel)) {
+		/// TRANSLATORS: Do not translate pthread
 		remmina_ssh_set_application_error(REMMINA_SSH(tunnel), _("Could not start pthread."));
 		tunnel->thread = 0;
 		return FALSE;
@@ -1460,6 +1486,7 @@ remmina_ssh_tunnel_x11(RemminaSSHTunnel *tunnel, const gchar *cmd)
 	tunnel->running = TRUE;
 
 	if (pthread_create(&tunnel->thread, NULL, remmina_ssh_tunnel_main_thread, tunnel)) {
+		/// TRANSLATORS: Do not translate pthread
 		remmina_ssh_set_application_error(REMMINA_SSH(tunnel), _("Could not initialize pthread."));
 		tunnel->thread = 0;
 		return FALSE;
@@ -1476,6 +1503,7 @@ remmina_ssh_tunnel_xport(RemminaSSHTunnel *tunnel, gboolean bindlocalhost)
 	tunnel->running = TRUE;
 
 	if (pthread_create(&tunnel->thread, NULL, remmina_ssh_tunnel_main_thread, tunnel)) {
+		/// TRANSLATORS: Do not translate pthread
 		remmina_ssh_set_application_error(REMMINA_SSH(tunnel), _("Failed to initialize pthread."));
 		tunnel->thread = 0;
 		return FALSE;
@@ -1493,6 +1521,7 @@ remmina_ssh_tunnel_reverse(RemminaSSHTunnel *tunnel, gint port, gint local_port)
 	tunnel->running = TRUE;
 
 	if (pthread_create(&tunnel->thread, NULL, remmina_ssh_tunnel_main_thread, tunnel)) {
+		/// TRANSLATORS: Do not translate pthread
 		remmina_ssh_set_application_error(REMMINA_SSH(tunnel), _("Could not initialize pthread."));
 		tunnel->thread = 0;
 		return FALSE;
@@ -1581,10 +1610,12 @@ remmina_sftp_open(RemminaSFTP *sftp)
 	TRACE_CALL(__func__);
 	sftp->sftp_sess = sftp_new(sftp->ssh.session);
 	if (!sftp->sftp_sess) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(REMMINA_SSH(sftp), _("Could not create SFTP session: %s"));
 		return FALSE;
 	}
 	if (sftp_init(sftp->sftp_sess)) {
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(REMMINA_SSH(sftp), _("Could not initialize SFTP session: %s"));
 		return FALSE;
 	}
@@ -1669,6 +1700,7 @@ remmina_ssh_shell_thread(gpointer data)
 	if ((channel = ssh_channel_new(REMMINA_SSH(shell)->session)) == NULL ||
 	    ssh_channel_open_session(channel)) {
 		UNLOCK_SSH(shell)
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(REMMINA_SSH(shell), _("Could not open channel: %s"));
 		if (channel) ssh_channel_free(channel);
 		shell->thread = 0;
@@ -1698,6 +1730,7 @@ remmina_ssh_shell_thread(gpointer data)
 		ret = ssh_channel_request_shell(channel);
 	if (ret) {
 		UNLOCK_SSH(shell)
+		/// TRANSLATORS: The placeholder %s is an error message
 		remmina_ssh_set_error(REMMINA_SSH(shell), _("Could not request shell: %s"));
 		ssh_channel_close(channel);
 		ssh_channel_send_eof(channel);
diff --git a/src/remmina_ssh_plugin.c b/src/remmina_ssh_plugin.c
index 2d6f61929..c36a1899e 100644
--- a/src/remmina_ssh_plugin.c
+++ b/src/remmina_ssh_plugin.c
@@ -474,8 +474,9 @@ remmina_plugin_ssh_vte_save_session(GtkMenuItem *menuitem, RemminaProtocolWidget
 	GFileOutputStream *stream = g_file_replace(gpdata->vte_session_file, NULL, FALSE, G_FILE_CREATE_NONE, NULL, &err);
 
 	if (err != NULL) {
+		/// TRANSLATORS: %s is aplaceholder for an error message
 		widget = gtk_message_dialog_new(NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
-						_("%s"), err->message);
+						_("Error: %s"), err->message);
 		g_signal_connect(G_OBJECT(widget), "response", G_CALLBACK(gtk_widget_destroy), NULL);
 		gtk_widget_show(widget);
 		return;