获取显示屏的个数和分辨率 --- 通过使用OpenGL的GLFW库

获取显示屏的个数和分辨率 — 通过使用OpenGL的GLFW库

程序

#include <iostream>

// GLFW
#include <GLFW/glfw3.h>

int main()
{
    // Init GLFW
    glfwInit();
    // Set all the required options for GLFW
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

    int monitorCount;
    //GLFWmonitor* pMonitor = glfwGetPrimaryMonitor();
    GLFWmonitor** pMonitor =  glfwGetMonitors(&monitorCount);

    std::cout << "Now, Screen number is " << monitorCount << std::endl;
    for(int i=0; i<monitorCount; i++){
        int screen_x, screen_y;
        const GLFWvidmode * mode = glfwGetVideoMode(pMonitor[i]);
        std::cout << "Screen size is X = " << mode->width << ", Y = " << mode->height << std::endl;
    }

    //waiting
    getchar();

    // Terminate GLFW, clearing any resources allocated by GLFW.
    glfwTerminate();
    return 0;
}

运行程序

Now, Screen number is 2
Screen size is X = 1920, Y = 1080
Screen size is X = 1280, Y = 1024

---

参考网站：
http://gamedev.stackexchange.com/questions/60244/how-to-find-monitor-resolution-with-glfw3
http://geistyp.weebly.com/tech-life/080-glfw