PFNGLCREATEPROGRESSFENCENVXPROCDart typedef
        PFNGLCREATEPROGRESSFENCENVXPROCDart =
     int Function()
    
    
    
Implementation
typedef PFNGLCREATEPROGRESSFENCENVXPROCDart = int Function();typedef PFNGLCREATEPROGRESSFENCENVXPROCDart = int Function();