Easy Question...Answer Needed Urgently (LPOLESTR -> LPSTR)

Posted on 1998-05-23
Last Modified: 2012-06-21
How do I convert a LPOLESTR value to a LPSTR or CString in MFC???
Question by:Nightjar
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Accepted Solution

tma050898 earned 200 total points
ID: 1164648
Have you tried...

CString str(oleString);  // where oleString is an LPOLESTR

I have code all over that does this w/o any problems. Exactly what problems are you having.

Expert Comment

ID: 1164649

Here's an example of this using the StringFromCLSID function. BTW, in case you are interested, the CString(LPCWSTR) c'tor is the one being used to convert the LPOLESTR to a CString.

static const GUID CLSID_RecyleBin =
{ 0x645ff040, 0x5081, 0x101b, { 0x9f, 0x08, 0x00, 0xaa, 0x00, 0x2f, 0x95, 0x4e } };

HRESULT hr = ::StringFromCLSID(CLSID_RecyleBin, &lpOleStr);
if (SUCCEEDED(hr))
 CString str(lpOleStr);

Take care,


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