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converting unicode LPTSTR to WCHAR[]

Posted on 2004-08-27
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Last Modified: 2008-03-17
When I step through the code below, I put a watch on szFile and it shows it as containing "c:\files\李克勤 - 飛花.mpg" (chinese characters in unicode).
I need to convert that to WCHAR[]. so I do a:

wcsncpy(wFile, T2W(szFile,CP_UTF), NUMELMS(wFile)-1);
However, wFile now contains: "c:\files\§õ§J¶Ô - ­¸ªá.mpg"

The next bit of code tries to open the file specified by wFile but doesn't succeed because  "c:\files\§õ§J¶Ô - ­¸ªá.mpg" does not exist. The file that should be opened is "c:\files\李克勤 - 飛花.mpg". I would like the filename to stay as unicode instead of being converted according to the codepage. What am I doing wrong? Is there something I don't understand?

----------
HRESULT PlayMovieInWindow(LPTSTR szFile)
{
    USES_CONVERSION;
    WCHAR wFile[MAX_PATH];
    HRESULT hr;

    if (!szFile)
        return E_POINTER;

    // Clear open dialog remnants before calling RenderFile()
    UpdateWindow(ghApp);

    // Convert filename to wide character string
    wcsncpy(wFile, T2W(szFile), NUMELMS(wFile)-1);

-------

Edit:: Sorry the unicode I typed did not come out properly...
szFile should contain the chinese unicode...
wFile  ends up being converted to multibyte.. so looks like gibberish... but I would like it to be unicode.. because the filename of the file on the drive is in unicode.
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Question by:theblip
2 Comments
 
LVL 16

Accepted Solution

by:
nonubik earned 375 total points
ID: 11919743
You'll just need to build your project using Unicode char set, or define UNICODE

Then the LPTSTR will be a WCHAR FAR *. So you won't need to convert the file name.
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Author Comment

by:theblip
ID: 11924508
Thanks for the tip.

It works now without conversion.

I had to do both a
#define UNICODE
and
#define _UNICODE

hmm.. do both need to be defined or just _UNICODE? it doesn't seem to work with just one.
I need to have both #define UNICODE and #define _UNICODE or I get type errors.

But yea.. it works now if I have both defined.
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