LWJGL/GLFW 窗口最大化编程指南：实现非全屏模式下的窗口自适应

void glfwMaximizeWindow(long window)

import org.lwjgl.glfw.GLFW;
import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.system.MemoryUtil.NULL;

public class RuntimeWindowMaximization {

    private long windowHandle;

    public RuntimeWindowMaximization(long handle) {
        this.windowHandle = handle;
    }

    /**
     * 在运行时将当前窗口最大化
     */
    public void maximizeCurrentWindow() {
        if (windowHandle != NULL) {
            // 调用 glfwMaximizeWindow 方法
            glfwMaximizeWindow(windowHandle);
            System.out.println("Window has been maximized at runtime.");
        } else {
            System.err.println("Error: Window handle is null. Cannot maximize.");
        }
    }

    public static void main(String[] args) {
        // 1. 初始化 GLFW
        if (!glfwInit()) {
            throw new IllegalStateException("Unable to initialize GLFW");
        }

        // 2. 创建一个窗口
        long window = glfwCreateWindow(800, 600, "Runtime Maximization Example", NULL, NULL);
        if (window == NULL) {
            glfwTerminate();
            throw new RuntimeException("Failed to create the GLFW window");
        }

        // 3. 设置当前上下文并显示窗口
        glfwMakeContextCurrent(window);
        glfwShowWindow(window);

        // 4. 模拟在某个事件或时间点最大化窗口
        // 例如，可以在窗口创建后立即最大化，或者响应用户输入
        RuntimeWindowMaximization maximizer = new RuntimeWindowMaximization(window);
        maximizer.maximizeCurrentWindow();

        // 5. 窗口主循环
        while (!glfwWindowShouldClose(window)) {
            glfwPollEvents(); // 处理窗口事件
            // 渲染逻辑...
            glfwSwapBuffers(window); // 交换缓冲区
        }

        // 6. 清理资源
        glfwDestroyWindow(window);
        glfwTerminate();
    }
}

void glfwWindowHint(int hint, int value)

import org.lwjgl.glfw.GLFW;
import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.system.MemoryUtil.NULL;

public class AutoMaximizedWindowCreation {

    public static void main(String[] args) {
        // 1. 初始化 GLFW
        if (!glfwInit()) {
            throw new IllegalStateException("Unable to initialize GLFW");
        }

        // 2. 设置窗口提示：在创建时自动最大化窗口
        glfwWindowHint(GLFW_MAXIMIZED, GLFW_TRUE);
        System.out.println("GLFW_MAXIMIZED hint set. Window will be created maximized.");

        // 3. 创建窗口 (此时窗口将自动以最大化状态创建)
        long window = glfwCreateWindow(800, 600, "Auto Maximized Window Example", NULL, NULL);
        if (window == NULL) {
            glfwTerminate();
            throw new RuntimeException("Failed to create the GLFW window");
        }

        // 4. 设置当前上下文并显示窗口
        glfwMakeContextCurrent(window);
        glfwShowWindow(window);

        // 5. 窗口主循环
        while (!glfwWindowShouldClose(window)) {
            glfwPollEvents(); // 处理窗口事件
            // 渲染逻辑...
            glfwSwapBuffers(window); // 交换缓冲区
        }

        // 6. 清理资源
        glfwDestroyWindow(window);
        glfwTerminate();
    }
}