GLFWKeyCallbackタイプのfree（）メソッドは未定義です

安定したLWJGL 3.0.0bバージョンをインストールしましたが、https://www.lwjgl.org/guideにあるウィンドウ作成の例に従おうとしています。しかし、私は、 "メソッドfree（）はGLFWKeyCallback型の定義されていません"と "メソッドfree（）はGLFWErrorCallback型の定義されていません"というエラーを受け取りました。 free（）メソッドはGLFWKeyCallbackクラスとGLFWErrorCallbackクラスにあるはずですが、明らかにそこにはありません。この問題を解決するにはどうすればよいですか？ありがとう。GLFWKeyCallbackタイプのfree（）メソッドは未定義です

import org.lwjgl.*; 
import org.lwjgl.glfw.*; 
import org.lwjgl.opengl.*; 

import static org.lwjgl.glfw.GLFW.*; 
import static org.lwjgl.opengl.GL11.*; 
import static org.lwjgl.system.MemoryUtil.*; 

public class HelloWorld { 

    // We need to strongly reference callback instances. 
    private GLFWErrorCallback errorCallback; 
    private GLFWKeyCallback keyCallback; 

    // The window handle 
    private long window; 

    public void run() { 
     System.out.println("Hello LWJGL " + Version.getVersion() + "!"); 

     try { 
      init(); 
      loop(); 

      // Destroy window and window callbacks 
      glfwDestroyWindow(window); 
      keyCallback.free(); 
     } finally { 
      // Terminate GLFW and free the GLFWErrorCallback 
      glfwTerminate(); 
      errorCallback.free(); 
     } 
    } 

    private void init() { 
     // Setup an error callback. The default implementation 
     // will print the error message in System.err. 
     glfwSetErrorCallback(errorCallback = GLFWErrorCallback.createPrint(System.err)); 

     // Initialize GLFW. Most GLFW functions will not work before doing this. 
     if (glfwInit() != GLFW_TRUE) 
      throw new IllegalStateException("Unable to initialize GLFW"); 

     // Configure our window 
     glfwDefaultWindowHints(); // optional, the current window hints are already the default 
     glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creation 
     glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable 

     int WIDTH = 300; 
     int HEIGHT = 300; 

     // Create the window 
     window = glfwCreateWindow(WIDTH, HEIGHT, "Hello World!", NULL, NULL); 
     if (window == NULL) 
      throw new RuntimeException("Failed to create the GLFW window"); 

     // Setup a key callback. It will be called every time a key is pressed, repeated or released. 
     glfwSetKeyCallback(window, keyCallback = new GLFWKeyCallback() { 
      @Override 
      public void invoke(long window, int key, int scancode, int action, int mods) { 
       if (key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE) 
        glfwSetWindowShouldClose(window, GLFW_TRUE); // We will detect this in our rendering loop 
      } 
     }); 

     // Get the resolution of the primary monitor 
     GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor()); 
     // Center our window 
     glfwSetWindowPos(
      window, 
      (vidmode.width() - WIDTH)/2, 
      (vidmode.height() - HEIGHT)/2 
     ); 

     // Make the OpenGL context current 
     glfwMakeContextCurrent(window); 
     // Enable v-sync 
     glfwSwapInterval(1); 

     // Make the window visible 
     glfwShowWindow(window); 
    } 

    private void loop() { 
     // This line is critical for LWJGL's interoperation with GLFW's 
     // OpenGL context, or any context that is managed externally. 
     // LWJGL detects the context that is current in the current thread, 
     // creates the GLCapabilities instance and makes the OpenGL 
     // bindings available for use. 
     GL.createCapabilities(); 

     // Set the clear color 
     glClearColor(1.0f, 0.0f, 0.0f, 0.0f); 

     // Run the rendering loop until the user has attempted to close 
     // the window or has pressed the ESCAPE key. 
     while (glfwWindowShouldClose(window) == GLFW_FALSE) { 
      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer 

      glfwSwapBuffers(window); // swap the color buffers 

      // Poll for window events. The key callback above will only be 
      // invoked during this call. 
      glfwPollEvents(); 
     } 
    } 

    public static void main(String[] args) { 
     new HelloWorld().run(); 
    } 

}

出典

2016-04-02 Awet Nhafash