text: //========================================================================
  // UTF-8 window title test
  // Copyright (c) Camilla Löwy <elmindreda@glfw.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 <glad/gl.h>
  #define GLFW_INCLUDE_NONE
  #include <GLFW/glfw3.h>
  
  #include <stdio.h>
  #include <stdlib.h>
  
  static void error_callback(int error, const char* description)
  {
      fprintf(stderr, "Error: %s\n", description);
  }
  
  int main(void)
  {
      GLFWwindow* window;
  
      glfwSetErrorCallback(error_callback);
  
      if (!glfwInit())
          exit(EXIT_FAILURE);
  
      window = glfwCreateWindow(400, 400, "English 日本語 русский язык 官話", NULL, NULL);
      if (!window)
      {
          glfwTerminate();
          exit(EXIT_FAILURE);
      }
  
      glfwMakeContextCurrent(window);
      gladLoadGL(glfwGetProcAddress);
      glfwSwapInterval(1);
  
      while (!glfwWindowShouldClose(window))
      {
          glClear(GL_COLOR_BUFFER_BIT);
          glfwSwapBuffers(window);
          glfwWaitEvents();
      }
  
      glfwTerminate();
      exit(EXIT_SUCCESS);
  }
  
  