Convert AnsiString to a wchar_t

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4 total messages Started by Wayne Smith Wed, 22 Aug 2007 17:01

#1418

Author: Wayne Smith
Date: Wed, 22 Aug 2007 17:01

4 lines
1045 bytes

Does anyone have an example of converting an AnsiString to a wchar_t?

Thanks in advance,
Wayne

Re: Convert AnsiString to a wchar_t

#1420

Author: Damon Chandler (TeamB)
Date: Wed, 22 Aug 2007 17:12

20 lines
1280 bytes

Hi Wayne,

Have a look at the AnsiString::WideChar() method.  You could also use 
the WideString class.

Cheers,
--
Damon Chandler (TeamB)
C++Builder Developer's Journal
http://bcbjournal.com
http://bcbjournal.org


Wayne Smith wrote:
> Does anyone have an example of converting an AnsiString to a wchar_t?
> 
> Thanks in advance,
> Wayne
> 
>

Re: Convert AnsiString to a wchar_t

#1419

Author: Wayne Smith
Date: Wed, 22 Aug 2007 17:18

37 lines
1681 bytes

Damon,

I looked at the help, but it wasn't much help. I am including my AnsiString. 
How would you convert it to a wchar_t?

   AnsiString temp = "c:\\scanexam\\" + ebDlrNmbr->Text.Trim() + "_" + 
newnumber.Trim() + ".jpg";

Thanks again,

Wayne





"Damon Chandler (TeamB)" <editor@NOSPAM.bcbjournal.com> wrote in message 
news:46cc6e81$1@newsgroups.borland.com...
> Hi Wayne,
>
> Have a look at the AnsiString::WideChar() method.  You could also use the 
> WideString class.
>
> Cheers,
> --
> Damon Chandler (TeamB)
> C++Builder Developer's Journal
> http://bcbjournal.com
> http://bcbjournal.org
>
>
> Wayne Smith wrote:
>> Does anyone have an example of converting an AnsiString to a wchar_t?
>>
>> Thanks in advance,
>> Wayne
>>

Re: Convert AnsiString to a wchar_t

#1422

Author: Remy Lebeau (TeamB)
Date: Wed, 22 Aug 2007 19:50

35 lines
1954 bytes

"Wayne Smith" <wsmith@epgins.com> wrote in message
news:46cc7064$1@newsgroups.borland.com...

> I am including my AnsiString. How would you convert it to a wchar_t?

You can use the WideString class, like Damon suggested, ie:

    WideString temp = "c:\\scanexam\\" + ebDlrNmbr->Text.Trim() + "_" +
newnumber.Trim() + ".jpg";

Or:

    AnsiString asTemp = "c:\\scanexam\\" + ebDlrNmbr->Text.Trim() + "_" +
newnumber.Trim() + ".jpg";
    WideString wTemp = astemp;

WideString is a wrapper for a BSTR, which is based on wchar_t.  As such, it
can be used anywhere a wchar_t* is expected.

If you don't want to use the WideString class, then you need to allocate
your own wchar_t buffer that is large enough to convert the AnsiString into,
ie:

    AnsiString asTemp = "c:\\scanexam\\" + ebDlrNmbr->Text.Trim() + "_" +
newnumber.Trim() + ".jpg";

    int iSize = asTemp.WideCharBufSize();
    wchar_t *wTemp = new wchar_t[iSize];
    asTemp.WideChar(wTemp, iSize);
    // use wTemp as needed...
    delete[] wTemp;


Gambit

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