问题
Anyone know how to convert BSTR to char* ?
Update: I tried to do this, but don't know if it is right or wrong.
char *p= _com_util::ConvertBSTRToString(URL->bstrVal);
strcpy(testDest,p );
回答1:
Your code is okay. ConvertBSTRToString does just that. As for the strcpy
, testDest
needs to be large enough to hold the string pointed to by p
. Note that since ConvertBSTRToString allocates a new string you will need to free it somewhere down the line. Once you are done make sure you do:
delete[] p;
A couple of caveats though (as you can see from BSTR documentation on MSDN):
- On Microsoft Windows, consists of a string of Unicode characters (wide or double-byte characters).
- May contain multiple embedded null characters.
So, your strcpy
may not always work as expected.
来源:https://stackoverflow.com/questions/3648848/convert-bstr-to-char