Finding the size of a stream (LPSTREAM)
Hello all!
I hope you can help with, what I hope, is a simple question!
I have the following code:
Later on, I need to write lpData to somewhere else, but in order to do this, I need the size. I tried using :
Which did give me the size but in a ULARGE_INTEGER, when all I need is a ULONG. I cant figure out a good way to cast a 64 bit integer into a 32 bit long! Is there a better way?
Thanks very much in advance!
Darren
I hope you can help with, what I hope, is a simple question!
I have the following code:
OpenStreamOnFile (MAPIAllocateBuffer, MAPIFreeBuffer, STGM_READ, (LPTSTR)text_file[i].c_str(), NULL,&lpData);Later on, I need to write lpData to somewhere else, but in order to do this, I need the size. I tried using :
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Which did give me the size but in a ULARGE_INTEGER, when all I need is a ULONG. I cant figure out a good way to cast a 64 bit integer into a 32 bit long! Is there a better way?
Thanks very much in advance!
Darren
Last edited on
A ULARGE_INTEGER is a union-struct. You can just access the LowPart field for the 32-bit value. (Make sure the HighPart is zero!)
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