arrow key works on gdi

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@244 b9cfdab3-6d41-4d17-bbe4-086880011989

src/widget/entry.c

@@ -106,7 +106,7 @@ static void key(MwWidget handle, int code) {
 		int incr = 0;
 		out	 = malloc(strlen(str) + 1 + 1);
 		incr += MwUTF8Copy(str, 0, out, 0, t->cursor);
-		out[incr++] = code;
+		MwUTF32ToUTF8(code, out + incr);
 		MwUTF8Copy(str, t->cursor, out, t->cursor + 1, MwUTF8Length(str) - t->cursor);
 
 		t->cursor++;