PFNGLDRAWARRAYSINSTANCEDEXTPROC typedef
        PFNGLDRAWARRAYSINSTANCEDEXTPROC =
     Void Function(Uint32 mode, Int32 start, Uint32 count, Uint32 primcount)
    
    
    
Implementation
typedef PFNGLDRAWARRAYSINSTANCEDEXTPROC =
    Void Function(Uint32 mode, Int32 start, Uint32 count, Uint32 primcount);