PFNGLSTRINGMARKERGREMEDYPROCDart typedef
        PFNGLSTRINGMARKERGREMEDYPROCDart =
     void Function(int len, Pointer<NativeType>  string)
    
    
    
Implementation
typedef PFNGLSTRINGMARKERGREMEDYPROCDart =
    void Function(int len, Pointer<NativeType> string);