What is the proper way to convert this C macro to D?

:  #define TEXTVIEW_CLASS _T("TextView32")

This is how I understand it, but don't know if it is correct:

:  const char[] TEXTVIEW_CLASS = "TextView32";

am I way off base here?

Thanks,
Andrew

"a.c.edwards" <a.c.edwards_member@pathlink.com> wrote in message news:d773c7$1ga7$1@digitaldaemon.com...
> What is the proper way to convert this C macro to D?
>
> :  #define TEXTVIEW_CLASS _T("TextView32")
>
> This is how I understand it, but don't know if it is correct:
>
> :  const char[] TEXTVIEW_CLASS = "TextView32";
>
> am I way off base here?

Nope, that's about right, though that particular string would only be usable with the A versions of the API functions.

If you'd like to use the W versions, you'd have to use a const wchar[].

Or, you could have a version statement:

version(Unicode)
{
    const wchar[] TEXTVIEW_CLASS="TextView32";
}
else
{
    const char[] TEXTVIEW_CLASS="TextView32";
}

Which is essentially what the _T() macro does in C.

You could also use the version(Unicode) statement to make aliases for the W versions of the functions (like MessageBoxW to MessageBox), and in the else, alias the A versions.  That way, you can just put a -version=Unicode on the compiler commandline (or leave it out), and the correct set of functions and constants will be selected.  :)

Jarrett Billingsley wrote:
<snip>
> Or, you could have a version statement:
> 
> version(Unicode)
> {
>     const wchar[] TEXTVIEW_CLASS="TextView32";
> }
> else
> {
>     const char[] TEXTVIEW_CLASS="TextView32";
> }
<snip>

Or have somewhere

    version(Unicode) {
        alias wchar TCHAR;
    } else {
        alias char TCHAR;
    }

then you can do simply

    const TCHAR[] TEXTVIEW_CLASS="TextView32";

a little less repetitive when you've got lots to declare.

Stewart.

-- 
My e-mail is valid but not my primary mailbox.  Please keep replies on the 'group where everyone may benefit.