PFNGLGETACTIVESUBROUTINEUNIFORMIVPROCDart typedef
        PFNGLGETACTIVESUBROUTINEUNIFORMIVPROCDart =
     void Function(int program, int shadertype, int index, int pname, Pointer<Int32>  values)
    
    
    
Implementation
typedef PFNGLGETACTIVESUBROUTINEUNIFORMIVPROCDart =
    void Function(
      int program,
      int shadertype,
      int index,
      int pname,
      Pointer<Int32> values,
    );