project for a (works on my devices) demo

sources/demos/demo_headless.c

@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include "../headers/glut.h"
+
+int frame_ms=16;
+int one_s=1000;
+int five_s=5000;
+
+void printSomething( int value){
+	printf("a frame\n");
+	glutTimerFunc(frame_ms, printSomething, 0);
+}
+
+void printSecond( int value){
+	printf("a second\n");
+}
+
+void printFiveSecond( int value){
+	printf("five seconds\n");
+}
+
+int main(){
+	char *devPaths[2] = {
+		"/dev/input/event4",
+		"/dev/input/event5"	
+	};
+
+	glutInit( devPaths, 2);
+
+	glutTimerFunc(frame_ms, printSomething, 0);
+	glutTimerFunc(one_s, printSecond, 0);
+	glutTimerFunc(five_s, printFiveSecond, 0);
+
+	glutMainLoop();
+	/*
+	*/
+}