在createWindow方法的末尾添加对GLContext.createFromCurrent()的调用.

Add a call to GLContext.createFromCurrent() at the end of the createWindow method.

需要这种方法来设置LWJGL GL **类在幕后使用的上下文.

This method is needed to set the context used by the LWJGL GL** classes under the hood.

自最近的夜间版本(3.0.0b#11)起，此功能不再起作用，因为GLContext类不再存在.而是在createWindow方法的末尾添加GL.createCapabilities().

Since the latest nightly (3.0.0b #11) this no longer works, as the GLContext class no more exists. Instead, add GL.createCapabilities() at the end of the createWindow method.