diff --git a/src/lib3270++/ipc/session.cc b/src/lib3270++/ipc/session.cc
index 7322601..5617470 100644
--- a/src/lib3270++/ipc/session.cc
+++ b/src/lib3270++/ipc/session.cc
@@ -81,11 +81,32 @@
 	}
 
 	std::string	IPC::Session::toString(int baddr, size_t len, char lf) const {
-		throw std::system_error(EINVAL, std::system_category());
+
+		std::string rc;
+
+		Request(*this,"getStringAtAddress")
+			.push((uint32_t) baddr)
+			.push((uint32_t) len)
+			.push((uint8_t) lf)
+			.call()
+			.pop(rc);
+
+		return rc;
 	}
 
 	std::string	IPC::Session::toString(int row, int col, size_t sz, char lf) const {
-		throw std::system_error(EINVAL, std::system_category());
+
+		std::string rc;
+
+		Request(*this,"getStringAt")
+			.push((uint32_t) row)
+			.push((uint32_t) col)
+			.push((uint32_t) sz)
+			.push((uint8_t) lf)
+			.call()
+			.pop(rc);
+
+		return rc;
 	}
 
 	ProgramMessage IPC::Session::getProgramMessage() const {
diff --git a/src/lib3270++/linux/request.cc b/src/lib3270++/linux/request.cc
index 3a2ba56..f7d7ea9 100644
--- a/src/lib3270++/linux/request.cc
+++ b/src/lib3270++/linux/request.cc
@@ -146,11 +146,27 @@
 		return *this;
 	}
 
-	IPC::Request & IPC::Request::push(int32_t arg) {
+	IPC::Request & IPC::Request::push(const bool arg) {
+		dbus_message_append_args(this->msg.out,DBUS_TYPE_BOOLEAN,&arg,DBUS_TYPE_INVALID);
+		return *this;
+	}
+
+	IPC::Request & IPC::Request::push(const uint8_t arg) {
+		dbus_message_append_args(this->msg.out,DBUS_TYPE_BYTE,&arg,DBUS_TYPE_INVALID);
+		return *this;
+	}
+
+	IPC::Request & IPC::Request::push(const int32_t arg) {
 		dbus_message_append_args(this->msg.out,DBUS_TYPE_INT32,&arg,DBUS_TYPE_INVALID);
 		return *this;
 	}
 
+	IPC::Request & IPC::Request::push(const uint32_t arg) {
+		dbus_message_append_args(this->msg.out,DBUS_TYPE_UINT32,&arg,DBUS_TYPE_INVALID);
+		return *this;
+	}
+
+
 	IPC::Request & IPC::Request::pop(std::string &value) {
 
 		const char * str = "";
diff --git a/src/lib3270++/private.h b/src/lib3270++/private.h
index 0c81ad9..c970893 100644
--- a/src/lib3270++/private.h
+++ b/src/lib3270++/private.h
@@ -295,7 +295,10 @@
 
 				// Push values
 				Request & push(const char *arg);
-				Request & push(int32_t arg);
+				Request & push(const bool arg);
+				Request & push(const int32_t arg);
+				Request & push(const uint32_t arg);
+				Request & push(const uint8_t arg);
 
 				// Pop values
 				Request & pop(std::string &value);
--
libgit2 0.21.2