PFNGLNAMEDFRAMEBUFFERSAMPLEPOSITIONSFVAMDPROCDart typedef
        PFNGLNAMEDFRAMEBUFFERSAMPLEPOSITIONSFVAMDPROCDart =
     void Function(int framebuffer, int numsamples, int pixelindex, Pointer<Float>  values)
    
    
    
Implementation
typedef PFNGLNAMEDFRAMEBUFFERSAMPLEPOSITIONSFVAMDPROCDart =
    void Function(
      int framebuffer,
      int numsamples,
      int pixelindex,
      Pointer<Float> values,
    );