BSTR to QString Conversion

[bismitapadhy]

How can i convert BSTR to QString. Please Give a example.

[_Stefan]

This probably works:



QString convertedBSTR((QChar*) bstr, wcslen(bstr));


Don't forget to free the BSTR, else you will get memory leaks!

[bismitapadhy]

This probably works:



QString convertedBSTR((QChar*) bstr, wcslen(bstr));


Don't forget to free the BSTR, else you will get memory leaks!

This is not working give me some other solution.
BSTR containing the starting base address of a string. I need to convert into QString.

[_Stefan]

Can you elaborate on the exact problem?

Show some code, debug messages?

[bismitapadhy]

Can you elaborate on the exact problem?

Show some code, debug messages?

BSTR codesetID;

if(pGetID_Outron->GetCodesetID(&codesetID, &codesetLength) == S_OK)
{
}
CodesetID containg the starting address.
Now we need to get in QString, to which BSTR is pointing to.

[wysota]

But what happens when you use the suggested code?

[squidge]

This probably works:It is my understanding that this will not work as the first 4 bytes of a BSTR contain the length of the string, so you would have to compensate for this. Maybe QString convertedBSTR((QChar*) &bstr[4], wcslen(bstr)); ?

[wysota]

http://www.codeproject.com/kb/string/bstrsproject1.aspx

[hvkleist]

Try:

std::wstring intermediateString(myBSTR, SysStringLen(myBSTR);
QString finalString = QString::fromStdWString(intermediateString);

-K

[bmn]

No need to use std:
QString qstr((QChar*)bstr, ::SysStringLen(bstr));