problem with unicode and files

I'm trying to read data from file into a Unicode string, and even though that according to dwRead ,
it does read bytes from the file, the szUnicode string is still empty.
here is the code:

Code:

---

wchar_t *getFile(char *fname)
{
        HANDLE hFile=CreateFile(fname,
                GENERIC_READ,
                FILE_SHARE_READ,
                NULL,
                OPEN_EXISTING,
                NULL,
                NULL);
        int num;
        wchar_t *szUnicode;
        DWORD dwRead;

        if(hFile==INVALID_HANDLE_VALUE)
                return NULL;

        num=GetFileSize(hFile,NULL);
        szUnicode=(wchar_t*)malloc(sizeof(wchar_t) * num);
       
        ReadFile(hFile,(LPVOID)szUnicode,num,&dwRead,NULL);
        wprintf(szUnicode);
        CloseHandle(hFile);

        return szUnicode;
}

---

anyone has any idea?
thanks in advance.

(Make sure ReadFile returns TRUE)

So what does szUnicode contain?

Did you write the sting to the file yourself (from your program)? If the file/content was created with an editor, you should make you saved the file without BOM bytes.

yeah, that was the problem, thanks.