GlBlendFuncSeparate typedef
        GlBlendFuncSeparate =
     void Function(int sfactorRGB, int dfactorRGB, int sfactorAlpha, int dfactorAlpha)
    
    
    
Implementation
typedef GlBlendFuncSeparate = void Function(
    int sfactorRGB, int dfactorRGB, int sfactorAlpha, int dfactorAlpha);