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BSTR is a COM variable type. I am building a COM in Visual C++ 6.0 and one of my functions accepts a parameter of type BSTR. I need to convert the BSTR variable to a char so that I can pass it to a function that accepts a char parameter.<br />
<br />
That's it... make any sense? Thanks...<br />

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BSTR is a COM variable type. I am building a COM in Visual C++ 6.0 and one of my functions accepts a parameter of type BSTR. I need to convert the BSTR variable to a char so that I can pass it to a function that accepts a char parameter.

That's it... make any sense? Thanks...


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As far as I know BSTR is similar to the String data type, however, I don't know if it shares the same API methods.<br />

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As far as I know BSTR is similar to the String data type, however, I don't know if it shares the same API methods.


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the class _bstr_t defined in &lt;comdef.h&gt; automates the conversion from and to BSTR or char*.<br />
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intern the following functions are used:<br />
<br />
&nbsp;BSTR _com_util::ConvertStringTo<wbr />BSTR(const<wbr /> char* pSrc)<br />
<br />
&nbsp;char* _com_util::ConvertBSTRToSt<wbr />ring(BSTR pSrc)<br />
<br />
bye,<br />
&nbsp; feri<br />

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the class _bstr_t defined in <comdef.h> automates the conversion from and to BSTR or char*.

intern the following functions are used:

 BSTR _com_util::ConvertStringToBSTR(const char* pSrc)

 char* _com_util::ConvertBSTRToString(BSTR pSrc)

bye,
  feri


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Yeah... I need the method that works in the ATL, because the code is within an ATL COM object.<br />
<br />
Thanks...<br />

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Yeah... I need the method that works in the ATL, because the code is within an ATL COM object.

Thanks...


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How do I copy a BSTR variable to a char variable?<br />
<br />
How do I copy a char variable (of array type) to a BSTR variable?
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How do I copy a BSTR variable to a char variable?

How do I copy a char variable (of array type) to a BSTR variable?

Converting variables...

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.