Solved

converting unicode LPTSTR to WCHAR[]

Posted on 2004-08-27
2
1,727 Views
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.
0
Comment
Question by:theblip
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 16

Accepted Solution

by:
nonubik earned 125 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.
0
 

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.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
Container Orchestration platforms empower organizations to scale their apps at an exceptional rate. This is the reason numerous innovation-driven companies are moving apps to an appropriated datacenter wide platform that empowers them to scale at a …
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question