C / C++ / MFC

Re: odd error on web services...

15-Nov-05 15:05

The way to debug a webservice is to hit F5 if it's part of a web app, or otherwise perhaps attach to process ? Then make a webservice call and have a breakpoint waiting.

What's it written in ?

Christian Graus - Microsoft MVP - C++

(Steven Hicks)ⁿ⁺¹15-Nov-05 15:09

(Steven Hicks)ⁿ⁺¹

15-Nov-05 15:09

I'm unable to debug it... I hit f5 and it attaches to aspnetw and does nothing... and attempts to load the webservice but never loads it...

It is written in mc++ (which is why I posted my question here)

-Steven Hicks

CPA

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Re: odd error on web services...

Christian Graus15-Nov-05 15:21

Re: 2 question for you pro's

15-Nov-05 15:21

(Steven Hicks)n+1 wrote:
It is written in mc++ (which is why I posted my question here)

OK, I wondered because it was posted in the C++ forum. I've only done C# web services, I just hit F5 and it all works.

Christian Graus - Microsoft MVP - C++

ms outlook

pnpfriend15-Nov-05 11:37

pnpfriend

15-Nov-05 11:37

Hi I'm using c++ msoutlook automation.
I have no problem working with outlook.. except for the dialog that is asking me to choose the accessing time like 1min - 10 mins..
Is there any way to turn off that dialog using c++?
I dont' know whcih function to use to trun off that message prompt.

thanks for your help.

2 question for you pro's

talvezu15-Nov-05 11:17

talvezu

15-Nov-05 11:17

1 2 classes A and B. B has a private member int x and it should declare a friend function in the header for B to change A, however B's Header sould know A (inlude "a.h")and A's header should know B. but when i do so i get the error include nested level 363

2
I do I make a string member for a class.

(when i declare #include <string> in the header i must use namespace std in order to make it work but then i get the familiar problem of using namespace in header file - I do I set the conflict)

Thanks alot to whoever it be.

Nir.

Christian Graus15-Nov-05 13:32

15-Nov-05 13:32

talvezu wrote:
classes A and B. B has a private member int x and it should declare a friend function in the header for B to change A, however B's Header sould know A (inlude "a.h")and A's header should know B. but when i do so i get the error include nested level 363

You need to make the member protected in order to achieve this, private is not visible to friends.

You can do one of two things. The first is to forward declare the class in the header and have your #include in your cpp ( so you put class A; at the top of the B.h file ). The other is to use a third class as a bridge between the two.

talvezu wrote:
I do I make a string member for a class.

The way I do it is to put #include<string> in my stdafx.h. and then put std::string m_string; in my header file, and using std::string in my cpp file. So, I explicitly scope namespaces in my headers, and put using statements in my cpp.

talvezu wrote:
i must use namespace std in order to make it work but then i get the familiar problem of using namespace in header file - I do I set the conflict)

If you're worried about conflict, don't use 'using namespace std;', but instead put using statements for the bits of std you want to use.

Christian Graus - Microsoft MVP - C++

to Christian

talvezu15-Nov-05 23:35

talvezu

15-Nov-05 23:35

First , thank you for your help,

Unfortunatly I still have not succeed in making it right

the problem is that when I declare Class B , I cannot write the folowing
class B;

class A{
...
public :
friend int* B::geta(A* a);
...
}

because it is an implementation.
and I do not have anywhere else to declare friend function beside the header.

regards the 2 answer can you give some more details for me?

Thanks again,
Nir

Re: to Christian

Christian Graus16-Nov-05 12:19

Re: 2 question for you pro's

16-Nov-05 12:19

talvezu wrote:
friend int* B::geta(A* a);

I didn't know you could do that at all. If you can, you certainly can't do it here, the idea is that the compiler knows that class B exists, but certainly has no idea what it contains.

Christian Graus - Microsoft MVP - C++

grigsoft15-Nov-05 22:03

grigsoft

15-Nov-05 22:03

You don't have to include headers - just use declaration syntax, such as:

<br />
class A;<br />
class B<br />
{<br />
 friend class A;<br />
}<br />
---------<br />
class B;<br />
class A<br />
{<br />
friend class B;<br />
}<br />

Igor Green
http://www.grigsoft.com/ - files and folders comparison tools

Re: 2 question for you pro's

talvezu15-Nov-05 23:40

talvezu

15-Nov-05 23:40

Well it is working ,so I guess it is a solution but what if I want to grant just one function,
in porpuse of grant access not to all private members
you can look at the above situation I wrote in reply for cristian.

Thanks.
Nir

ip address and URL of a host

includeh1015-Nov-05 10:57

15-Nov-05 10:57

I have a host, asume it is:
name: www.myhost.com
ip: 111.222.333.444 (I got it from cPanel)

when I pass both as server param to MFC class CFtpConnection and get the same contents.

questions:
1) how to get name (www.myhost.com) if I only know ip address and vise verse?

2) If I set a link on html file, such as:
<a href="http://www.myhost.com">link</a>
the page (index.html) can be loaded.
but for link
<a href="http://111.222.333.444 ">link</a>
the page can not be found.
why?

thx

includeh10

-- modified at 17:03 Tuesday 15th November, 2005

Mircea Puiu15-Nov-05 11:25

Mircea Puiu

15-Nov-05 11:25

You could use the existent API for that:
gethostbyname and gethostbyaddr

What you are looking for is either resolving a domain name into an IP address or resolving an IP address into domain name

Have a look here (eventhough is a VB page, it uses the same API):
http://www.activeserverpages.su/redir.asp?link=http://www.vbip.com[^]

SkyWalker

-- modified at 17:26 Tuesday 15th November, 2005

includeh1015-Nov-05 12:45

15-Nov-05 12:45

CString csAdd="111.222.333.444"; //assume
int iType=AF_INET;
HOSTENT*ph=gethostbyaddr(csAdd,csAdd.GetLength(),iType);

the function faield with last error 0x2AFC (no message for it).

why?

includeh10

markkuk15-Nov-05 13:19

markkuk

15-Nov-05 13:19

The first parameter of gethostbyaddr() is the address as a binary number in network byte order, not a CString. Use the inet_addr()[^] function to convert the address.

includeh1015-Nov-05 18:08

15-Nov-05 18:08

thx, it works now.

is there a function to get ip address from domain name?

includeh10

Mircea Puiu15-Nov-05 19:40

Mircea Puiu

15-Nov-05 19:40

 MSDN example:
// Declare and initialize variables
hostent* remoteHost;
char* host_name;
unsigned int addr;

//----------------------
// User inputs name of host
printf("Input name of host: ");
host_name = (char*) malloc(sizeof(char*)*16);
fgets(host_name, 16, stdin);

// If the user input is an alpha name for the host, use gethostbyname()
// If not, get host by addr (assume IPv4)
if (isalpha(host_name[0])) {   /* host address is a name */
  host_name[strlen(host_name)-1] = '\0'; /* NULL TERMINATED */
  remoteHost = gethostbyname(host_name);
}
else  { 
  addr = inet_addr(host_name);
  remoteHost = gethostbyaddr((char *) &addr, 4, AF_INET);
}

if (WSAGetLastError() != 0) {
  if (WSAGetLastError() == 11001)
  printf("Host not found...\nExiting.\n");
}
else
  printf("error#:%ld\n", WSAGetLastError());

// The remoteHost structure can now be used to
// access information about the host

SkyWalker

includeh1016-Nov-05 2:20

16-Nov-05 2:20

remoteHost does not contain info of ip address.

includeh10