PFNGLDRAWELEMENTSINSTANCEDEXTPROC typedef
        PFNGLDRAWELEMENTSINSTANCEDEXTPROC =
     Void Function(Uint32 mode, Uint32 count, Uint32 type, Pointer<NativeType>  indices, Uint32 primcount)
    
    
    
Implementation
typedef PFNGLDRAWELEMENTSINSTANCEDEXTPROC =
    Void Function(
      Uint32 mode,
      Uint32 count,
      Uint32 type,
      Pointer<NativeType> indices,
      Uint32 primcount,
    );