diff --git a/src/include/lib3270/trace.h b/src/include/lib3270/trace.h
index 6eb79d9..4c98865 100644
--- a/src/include/lib3270/trace.h
+++ b/src/include/lib3270/trace.h
@@ -67,6 +67,17 @@
 	/**
 	 * @brief Write on trace file.
 	 *
+	 * Write text on trace file.
+	 *
+	 * @param fmt 	String format.
+	 * @param ...	Arguments.
+	 *
+	 */
+	LIB3270_EXPORT void lib3270_write_trace(H3270 *session, const char *fmt, ...) LIB3270_AS_PRINTF(2,3);
+
+	/**
+	 * @brief Write on trace file.
+	 *
 	 * Write text on trace file, if DStrace is enabled.
 	 *
 	 * @param fmt 	String format.
diff --git a/src/lib3270/ctlr.c b/src/lib3270/ctlr.c
index b50f251..a958726 100644
--- a/src/lib3270/ctlr.c
+++ b/src/lib3270/ctlr.c
@@ -645,14 +645,14 @@ void ctlr_erase(H3270 *session, int alt)
 
 	if (alt)
 	{
-		/* Going from 24x80 to maximum. */
+		// Going from 24x80 to maximum.
 		session->cbk.display(session);
 
 		set_viewsize(session,session->maxROWS,session->maxCOLS);
 	}
 	else
 	{
-		/* Going from maximum to 24x80. */
+		// Going from maximum to 24x80.
 		if (session->maxROWS > 24 || session->maxCOLS > 80)
 		{
 			if(session->vcontrol)
diff --git a/src/lib3270/screen.c b/src/lib3270/screen.c
index 1bd9869..9185dce 100644
--- a/src/lib3270/screen.c
+++ b/src/lib3270/screen.c
@@ -255,6 +255,9 @@ LIB3270_EXPORT void lib3270_get_screen_size(H3270 *h, int *r, int *c)
 	CHECK_SESSION_HANDLE(h);
 	*r = h->rows;
 	*c = h->cols;
+
+//	trace("%s: %d - %d",__FUNCTION__, h->rows, h->cols);
+
 }
 
 LIB3270_EXPORT int lib3270_get_width(H3270 *h)
@@ -708,6 +711,8 @@ void set_viewsize(H3270 *session, int rows, int cols)
 	session->rows = rows;
 	session->cols = cols;
 
+	trace("View size changes to %dx%d",rows,cols);
+
 	if(session->cbk.configure)
 		session->cbk.configure(session,session->rows,session->cols);
 
diff --git a/src/lib3270/trace_ds.c b/src/lib3270/trace_ds.c
index 3484bba..79d3146 100644
--- a/src/lib3270/trace_ds.c
+++ b/src/lib3270/trace_ds.c
@@ -203,6 +203,15 @@ static void wtrace(H3270 *session, const char *fmt, ...)
 	va_end(args);
 }
 
+LIB3270_EXPORT void lib3270_write_trace(H3270 *session, const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	session->trace.handler(session,session->trace.userdata,fmt, args);
+	va_end(args);
+}
+
 LIB3270_EXPORT void lib3270_write_dstrace(H3270 *session, const char *fmt, ...)
 {
 	va_list args;
--
libgit2 0.21.2