由 dawei
/* * A window,making part of freeglut windows hierarchy. * Should be kept portable. * * NOTE that ActiveMenu is set to menu itself if the window is a menu. */ struct tagSFG_Window { SFG_Node Node; int ID; /* Window's ID number */ SFG_Context Window; /* Window and OpenGL context */ SFG_WindowState State; /* The window state */ SFG_Proc CallBacks[ TOTAL_CALLBACKS ]; /* Array of window callbacks */ void *UserData ; /* For use by user */ SFG_Menu* Menu[ FREEGLUT_MAX_MENUS ]; /* Menus appended to window */ SFG_Menu* ActiveMenu; /* The window's active menu */ SFG_Window* Parent; /* The parent to this window */ SFG_List Children; /* The subwindows d.l. list */ GLboolean IsMenu; /* Set to 1 if we are a menu */ };