OpenGL (Open Graphics Library) is a cross-platform application programming interface (API) for rendering 2D and 3D graphics. It provides a set of functions that allow a programmer to create graphical images, animations, and interactive programs. OpenGL is widely used in video games, scientific visualization, virtual reality, and other applications that require high-performance graphics rendering. It is supported on most operating systems, including Windows, macOS, Linux, Android, and iOS. OpenGL is maintained by the Khronos Group, a non-profit industry consortium that develops open standards for graphics and multimedia APIs.
![static int CanDumpMsgLoop(const int fd)
{
int ret;
int fdEpoll;
struct epoll_event eventsPending[1];
struct epoll_event eventSetup = {
.events = EPOLLIN,
};
int numEvent = -1;
fdEpoll = epoll_create(1);
if ...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162231282792694.png)
