I see how to do this using MFC, but what is the best way to convert a LPSTR to a BSTR in C++ using only the win32 libraries.
+3
A:
#include <comutil.h>
LPSTR myLpstr = "Hello World!";
_bstr_t bstr = _bstr_T(myLpstr);
It also needs library comsupp.lib
James Curran
2010-08-02 14:49:17
He said "only the win32 libraries".
JSBangs
2010-08-02 14:53:51
"comsupp.lib" is for "COM support". COM is part of Win32.
James Curran
2010-08-02 14:58:42
Agreed, but you should probably be using comsuppw.lib (which uses wchar_t* instead of unsigned short* in APIs). It's actually not a Win32 library (not in PSDK, no matching DLL) but a Visual C++ static library. So, you don't need to distribute MFC, but it's still not portable to MingW
MSalters
2010-08-03 08:01:51
+2
A:
Use SysAllocString.
Note that SysAllocString takes an OLECHAR* argument, which is effectively a WCHAR*, not a CHAR*. This shouldn't be a problem unless you're compiling without UNICODE defined--but don't do that.
JSBangs
2010-08-02 14:50:45
Whether or not UNICODE is defined is not going to have any effect on an LPSTR. You need to show how to convert the string.
Hans Passant
2010-08-02 15:44:54
-1, agree with Hans Passant here. The Unicode define affects `LPTSTR`, not `LPWSTR` or `LPSTR`. Hence this answer is missing the hard part.
MSalters
2010-08-03 07:56:03
A:
Don't know the concrete solution but I think this is gonna help you (especially part II):
The Complete Guide to C++ Strings, Part I - Win32 Character Encodings
The Complete Guide to C++ Strings, Part II - String Wrapper Classes
Regards,
Inno
Inno
2010-08-02 14:52:50