refreshget.c

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


int main() {
    if (!glfwInit())
        return(-1);
    
    int monitor_count;
    GLFWmonitor** monitors = glfwGetMonitors(&monitor_count);
    GLFWmonitor* primary = glfwGetPrimaryMonitor();
    for(int i = 0; i < monitor_count; i++) {
        GLFWmonitor* mon = monitors[i];
        printf("Monitor %d, \"%s\"", i, glfwGetMonitorName(mon));
        if (mon == primary) {
            printf(" (Primary)");
        }
        printf("\n");
        
        int count;
        const GLFWvidmode* modes = glfwGetVideoModes(mon, &count);
        for(int j = 0; j < count; j++) {
            GLFWvidmode mode = modes[j];
            printf("%dx%d @%dHz\n", mode.width, mode.height, mode.refreshRate);
        }
        printf("\n");
    }
    
    glfwTerminate();
    return 0;
}