求教：windows sdk下结构体嵌套的问题：

下列代码编译时出错：
struct BLOCKINFO
{N_TYPE nType;
 POINT  mPoint;
~~~~~~~~~~~~~~~~

 BOOL  BLOCK_RECT_4_4[4][4];
 RECT  Rect_defualt; 
}BlockInfo；
BlockInfo.mPoint.y+=SPEED;//SPEED为一常量出错信息：（好多行呢，）
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection
F:\练习小程序\BLOCK\IsBlockToEnded.cpp(15) : error C2100: illegal indirection