From 7ebf7a31bedc0b1eeffa59fe14a76245b4303d9d Mon Sep 17 00:00:00 2001
From: Camilla Berglund
glfwSetWindowFocusCallback function and GLFWwindowfocusfun type for receiving window focus eventsglfwSetWindowIconifyCallback function and GLFWwindowiconifyfun type for receiving window iconification eventsglfwGetCurrentWindow function for retrieving the window whose OpenGL context is currentGLFW_OPENGL_ES2_PROFILE profile for creating OpenGL ES 2.0 contextsGLFW_OPENGL_ES2_PROFILE profile for creating OpenGL ES 2.0 contexts using the GLX_EXT_create_context_es2_profile and WGL_EXT_create_context_es2_profile extensionswindows simple multi-window test programsharing simple OpenGL object sharing test programglfwOpenWindow for specifying a context the new window's context will share objects with