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