CString to constant char *
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From: ma on 2 Oct 2006 16:19 Hello, How can I convert a cstring into a constant char * correctly? I used the following code but it is not working properly. (const char *)FileDlg.GetPathName().GetBuffer() what is the correct way of doing this? Regards
From: Jonathan Wood on 2 Oct 2006 16:28 One way is: CString s; LPCTSTR psz = s; The following should also work: psz = FileDlg.GetPathName(); If you still have problems, perhaps you can be a little more specific about the problems you are having. -- Jonathan Wood SoftCircuits Programming http://www.softcircuits.com "ma" <ma(a)nowhere.com> wrote in message news:%230$KaAm5GHA.3452(a)TK2MSFTNGP05.phx.gbl... > Hello, > How can I convert a cstring into a constant char * correctly? I used > the following code but it is not working properly. > > (const char *)FileDlg.GetPathName().GetBuffer() > > > > what is the correct way of doing this? > > > > Regards > > > >
From: Ajay Kalra on 2 Oct 2006 16:41 > How can I convert a cstring into a constant char * correctly? I used the > following code but it is not working properly. > > (const char *)FileDlg.GetPathName().GetBuffer() > > > You can use LPCTSTR in MBCS build instead of GetBuffer/ReleaseBuffer. For UNICODE, you can use T2A macro to do the same. --- Ajay
From: Bogdan on 2 Oct 2006 16:52 You normally do not use GetBuffer() method unless you intend to change the string's content. Since you are trying to cast it to a (const char*) then I'm assuming that this is not the case. CString has a LPCTSTR conversion operator so casting the way Jonathan described will work. If you do not want to use LPCTSTR (not sure why) then make sure to use (const char*) or (const wchar_t*) - depending on your compiler settings. I suspect that your project is configured for UNICODE in which case you should use (const wchar_t*) or simply LPCTSTR. If you DO intend to change the content of the string then cast it to LPTSTR (or char*/wchar_t*). "ma" <ma(a)nowhere.com> wrote in message news:%230$KaAm5GHA.3452(a)TK2MSFTNGP05.phx.gbl... > Hello, > How can I convert a cstring into a constant char * correctly? I used > the following code but it is not working properly. > > (const char *)FileDlg.GetPathName().GetBuffer() > > > > what is the correct way of doing this? > > > > Regards > > > >
From: David Wilkinson on 2 Oct 2006 17:08
ma wrote: > Hello, > How can I convert a cstring into a constant char * correctly? I used the > following code but it is not working properly. > > (const char *)FileDlg.GetPathName().GetBuffer() > > > > what is the correct way of doing this? > > > > Regards > ma: Before you ask this question you should be sure you understand the issues related to CString in an ANSI or UNICODE build. If you do understand them, then you will probably know the answer to your question. David Wilkinson |