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分享请教一个关于GlobalLock的问题，谢谢
我在对数据库编程的时候，使用了CLongBinary类，从而获得数据库的BLOB数据，然后申请一个内存空间，想把CLongBinary中的数据拷贝回去，提示内存非法访问，但是用GlobalLock将CLongBinary中的数据锁定后再拷贝就行了，请问为什么？GlobalLock有什么好处？谢谢
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ks_gq 2006-06-08
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申请的内存空间如果是可移动的是不可以使用， 只有锁定之后才是可以移动的。
thisisll 2006-06-08
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GlobalLock
The GlobalLock function locks a global memory object and returns a pointer to the first byte of the object's memory block.
Note The global functions are slower than other memory management functions and do not provide as many features. Therefore, new applications should use the heap functions. However, the global functions are still used with DDE and the clipboard functions.
The GlobalLock function locks a global memory object and returns a pointer to the first byte of the object's memory block.
Note The global functions are slower than other memory management functions and do not provide as many features. Therefore, new applications should use the heap functions. However, the global functions are still used with DDE and the clipboard functions.
