Added UTF-8 window title test.

tests/title.c

@@ -0,0 +1,70 @@
+//========================================================================
+// UTF-8 window title test
+// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+//
+// This test sets a UTF-8 window title
+//
+//========================================================================
+
+#include <GL/glfw3.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+static void window_size_callback(GLFWwindow window, int width, int height)
+{
+    glViewport(0, 0, width, height);
+}
+
+int main(void)
+{
+    GLFWwindow window;
+
+    if (!glfwInit())
+    {
+        fprintf(stderr, "Failed to initialize GLFW: %s\n", glfwErrorString(glfwGetError()));
+        exit(EXIT_FAILURE);
+    }
+
+    window = glfwOpenWindow(0, 0, GLFW_WINDOWED, "English 日本語 русский язык 官話", NULL);
+    if (!window)
+    {
+        fprintf(stderr, "Failed to open GLFW window: %s\n", glfwErrorString(glfwGetError()));
+        exit(EXIT_FAILURE);
+    }
+
+    glfwSwapInterval(1);
+
+    glfwSetWindowSizeCallback(window_size_callback);
+
+    while (glfwIsWindow(window) == GL_TRUE)
+    {
+        glClear(GL_COLOR_BUFFER_BIT);
+        glfwSwapBuffers();
+        glfwWaitEvents();
+    }
+
+    exit(EXIT_SUCCESS);
+}
+