Refactorings.

src/main.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <GLFW/glfw3.h>
+#include "window.h"
+
+void loop(GLFWwindow* window) {
+    while(!glfwWindowShouldClose(window)) {
+        // ...
+        glfwPollEvents();
+    }
+}
+
+int main(int argc, const char *argv[]) {
+    GLFWwindow* window = vkeCreateWindow("Test", 800, 600);
+
+    if(window == NULL) {
+        return -1;
+    }
+
+    loop(window);
+    vkeDestroyWindow(window);
+    return 0;
+}