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I need to use a function from a wininet library, it requires the use of
const TCHAR.
The problem is the value needs to be calculated, so at the end I have this
string but I am having troubles converting it into a const TCHAR so I can
use it in the function.

TIA

"ree" <> wrote in message news:Xns94196DA40EEBDreehotmailcoom@210.49.20.254. ..
> I need to use a function from a wininet library, it requires the use of
> const TCHAR.
> The problem is the value needs to be calculated, so at the end I have this
> string but I am having troubles converting it into a const TCHAR so I can
> use it in the function.

TCHAR is a microsoft specific typedef for either char or wchar_t (or perhaps
unsigned short knowing these clowns). It's a single character, not a string.
You'd be better off asking on microsoft.public.vc.mfc but show a better example
there of what you are trying to do.

"Ron Natalie" <> wrote in
news:3f91e248$0$165$:


> TCHAR is a microsoft specific typedef for either char or wchar_t (or
> perhaps unsigned short knowing these clowns). It's a single
> character, not a string. You'd be better off asking on
> microsoft.public.vc.mfc but show a better example there of what you
> are trying to do.
>


oops sorry its actually a static TCHAR[]....eg.

static TCHAR hdrs[] = _T("Content-Type: application/x-www-form-rlencoded");

> > TCHAR is a microsoft specific typedef for either char or wchar_t (or
> > perhaps unsigned short knowing these clowns). It's a single
> > character, not a string. You'd be better off asking on
> > microsoft.public.vc.mfc but show a better example there of what you
> > are trying to do.
>
> oops sorry its actually a static TCHAR[]....eg.
>
> static TCHAR hdrs[] = _T("Content-Type:
application/x-www-form-rlencoded");

At this juncture we frequently find ourselves reminding newbies...

- try on news:microsoft.public.vc.mfc

- learn C++ first before learning MFC. (MS should
have followed that one.)

- try on news:microsoft.public.vc.mfc

- don't use TCHAR unless you intend to turn on the
magic UNICODE option, which you probably won't.

- try on news:microsoft.public.vc.mfc

- Use a CString. It will match TCHAR's type, and
it has the common set of string operations

- try on news:microsoft.public.vc.mfc

- post some of /your/ code - we know what a
TCHAR looks like

- try on news:microsoft.public.vc.mfc

- if you absolutely must use std::string, yield its
char const * using myString.c_str()

- try on news:microsoft.public.vc.mfc

Are you starting to see any subtle hints in my post?

--
Phlip
http://www.greencheese.org/BrunoTheBandit
-- The smoker you drink, the programmer you get --

"Phlip" <> wrote in news:5wmkb.12781$u6.4228
@newssvr33.news.prodigy.com:

>
>
> - learn C++ first before learning MFC. (MS should
> have followed that one.)
>
>
> - don't use TCHAR unless you intend to turn on the
> magic UNICODE option, which you probably won't.
>
> - try on news:microsoft.public.vc.mfc
>
> - Use a CString. It will match TCHAR's type, and
> it has the common set of string operations
>
>
> - post some of /your/ code - we know what a
> TCHAR looks like
>
>
> - if you absolutely must use std::string, yield its
> char const * using myString.c_str()
>
>

I am not sure if the problem is entirely TCHAR, it was just that I
didn't how to get a string variable into a constant expression. I just
thought there is something I am missing. Anyway I will try the ms
newsgroup.

Here is an example...
----------
static TCHAR frmdata2[] = _T("action=checkpassword&new_loc=%2Fbin");


I need to get the string variable in there
i.e
static TCHAR frmdata2[] = _T(string_variable);

> > - try on news:microsoft.public.vc.mfc
> >
> > - if you absolutely must use std::string, yield its
> > char const * using myString.c_str()
>
> I am not sure if the problem is entirely TCHAR, it was just that I
> didn't how to get a string variable into a constant expression. I just
> thought there is something I am missing. Anyway I will try the ms
> newsgroup.
>
> Here is an example...
> ----------
> static TCHAR frmdata2[] = _T("action=checkpassword&new_loc=%2Fbin");
>
>
> I need to get the string variable in there
> i.e
> static TCHAR frmdata2[] = _T(string_variable);

The function you want to call does not care about the 'static' or [], so you
could just pass string_variable.c_str() directly into that function. You
have copied example code and tried to change it without understanding it
first.

Try this question on news:microsoft.public.vc.mfc . But read a book about
C++. Asking this newsgroup to spoon-feed you the most basic things about how
the language works wastes both your time and ours.

--
Phlip

"Phlip" <> wrote in
news:9Dnkb.5685$ m:


>
> The function you want to call does not care about the 'static' or [],
> so you could just pass string_variable.c_str() directly into that
> function. You have copied example code and tried to change it without
> understanding it first.

I tried what you said but it just gives me an error

error C2664: 'HttpSendRequestA' : cannot convert parameter 4 from 'const
char *' to 'void *'

ree <> wrote in news:Xns94199B34941A0reehotmailcoom@
210.49.20.254:

> "Phlip" <> wrote in
> news:9Dnkb.5685$ m:
>
>


Dont worry found another way to do it. Thanks for all your help.