C / C++ / MFC

Show Dialog in my ActiveX?

4-Jul-05 0:37

This [^] article has the code to copy an exe to remote LAN machine and execute it remotely. But it requires Administrator access to the remote machine.

suhredayan
There is no spoon.

sharkmouse3-Jul-05 19:22

sharkmouse

3-Jul-05 19:22

hello,
i want to show dialog in my activex,but failed,the code is below:
in the WM_CREATE map func:
CDialogTest *dlg= new CDialogTest ();
dlg->Create(IDD_DIALOG,NULL);
dlg->ShowWindow(SW_SHOW);

and i use the vc tools ole view and tested that it can popup the dialog,
but i my test application,how to popup the dialog?even i use the code

CActivex m_activex;
m_activex.AboutBox();
to show the about dialog and i also crashed,what is the matter?please help me?

Extending C/C++ to include new "objects"

CorvetteZ06063-Jul-05 18:57

CorvetteZ0606

3-Jul-05 18:57

I have an idea for a new extention to C/C++. I'm not going to say exactly what it is, but it's similar to how a class is an extention of a struct. My question is, how was C extended to C++ to include the class keyword? It's not just a header file/library as far as I can tell. Is there a way I can create a new concept of data/code encapsulation in a header/library without completely rewriting the compiler/linker/IDE? I'm not trying to just create a new datatype.

Thanks!

Re: Extending C/C++ to include new "objects"

Christian Graus3-Jul-05 19:00

Christian Graus

3-Jul-05 19:00

CorvetteZ0606 wrote:
how was C extended to C++ to include the class keyword?

Initially, a pre compiler was written that turned C++ code into C, and it was passed to a C compiler from there. So classes would have been turned into structs. Now, the compilers are written to understand what a class is.

CorvetteZ0606 wrote:
Is there a way I can create a new concept of data/code encapsulation in a header/library without completely rewriting the compiler/linker/IDE?

No.

Christian Graus - Microsoft MVP - C++

Re: Extending C/C++ to include new "objects"

CorvetteZ06063-Jul-05 19:08

CorvetteZ0606

3-Jul-05 19:08

Christian Graus wrote:
CorvetteZ0606 wrote:
Is there a way I can create a new concept of data/code encapsulation in a header/library without completely rewriting the compiler/linker/IDE?

No.

Well maybe there should be Wink | ;-)

Re: Extending C/C++ to include new "objects"

Stuart Konen3-Jul-05 20:47

Stuart Konen

3-Jul-05 20:47

You could write your own precompiler and add it to the MSVC++ IDE via a pre-build step.

how to enume hosts of my LAN

yanping wang3-Jul-05 18:28

3-Jul-05 18:28

I need to enume the hosts of my LAN. I have tried to use WNet functions, but with little success.

Can anyone provide me a way to achieve this??

thank you very much.

2249173-Jul-05 18:34

3-Jul-05 18:34

Hope this article helps :http://www.codeproject.com/internet/xLANInfo.asp[^]

suhredayan
There is no spoon.

it does not wok

yanping wang3-Jul-05 19:09

3-Jul-05 19:09

xLANInfo does not work in my Computer at all. it use the WNet functions.

can you provide me another method.

thank you very much

ThatsAlok3-Jul-05 20:25

ThatsAlok

3-Jul-05 20:25

yanping wang wrote:
can you provide me another method.

try this :-
http://www.codeproject.com/w2k/sumeetnetserv.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

2249173-Jul-05 20:32

3-Jul-05 20:32

I guess its a 9x machine over there !

suhredayan
There is no spoon.

ThatsAlok3-Jul-05 21:07

ThatsAlok

3-Jul-05 21:07

suhredayan® wrote:
its a 9x machine over there !

I don't know? Smile | :)

. But I believe he is facing problem due to XP Service Pack 2. I have no knowledge about it Sigh | :sigh:

do u?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

yanping wang3-Jul-05 20:41

3-Jul-05 20:41

Thank you . I download the demo, but it does not work too.

we all use Windows SP2 system.

Now i have found a way to achieve my purpose.

i send ARP request to all Local ip addresses. the ones who reply my request exit in my LAN.

David Crow4-Jul-05 11:35

David Crow

4-Jul-05 11:35

yanping wang wrote:
I have tried to use WNet functions, but with little success.

Show us the code that is not working. What does it produce?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

yanping wang4-Jul-05 21:33

4-Jul-05 21:33

Thank you for your reply.

The problem is that not every hosts have the ablity to enume hosts in LAN by using WNet functions. only the one which is a domain administrator have the ability.

so i think the WNet functions do not fit me.

yanping wang4-Jul-05 21:39

4-Jul-05 21:39

now I have succefully enumed hosts of my LAN by sending ARP request.

but this require to install Ourself protocol driver to send ARP requests(SendARP does not fit).

It worked very good.

yanping wang4-Jul-05 22:09

4-Jul-05 22:09

my demo code is here(using WNet). it can not enume hosts:

#include "../common/initsock.h"

//#include "Ws2tcpip.h"

#include <ws2spi.h>

#include <winnetwk.h>

#include <stdio.h>
#include <windows.h>
#include <iostream>

CInitSock theSock; // to call WSAStartup function

using namespace std;
#include "Iphlpapi.h"
#pragma comment(lib, "Iphlpapi.lib")

#pragma comment(lib, "Mpr.lib")

BOOL EnumRes();

void main()
{

EnumRes();
}

BOOL EnumRes()
{
HANDLE hEnum;
DWORD dw = ::WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, NULL, &hEnum);
if(dw != NO_ERROR)
{
printf(" OpenEnum failed \n");
}

DWORD cCount = -1;
u_char lpBuffer[1024*16];
DWORD cBufferSize = 1024*16;
do
{
dw = ::WNetEnumResource(hEnum, &cCount, lpBuffer, &cBufferSize);
NETRESOURCE *pRes = (NETRESOURCE *)lpBuffer;
if(dw == NO_ERROR)
{
for(int i=0; i

David Crow5-Jul-05 2:53

David Crow

5-Jul-05 2:53

yanping wang wrote:
it can not enume hosts:

Why? Are you getting a runtime error? If so, what?

yanping wang wrote:
if(pRes[i].dwUsage == RESOURCEUSAGE_CONTAINER)

You may want to change this to:

if ((pRes[i].dwUsage & RESOURCEUSAGE_CONTAINER) == RESOURCEUSAGE_CONTAINER)

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

yanping wang5-Jul-05 4:30

Re: dll is error(picture)

5-Jul-05 4:30

thank you.

the change you made is right. thank you very much

dll is error(picture)

chinakknd3-Jul-05 18:25

chinakknd

3-Jul-05 18:25

Hi,I create a MFC externsion DLL .and I add a class to my project (based CDialog named CBmpDlg)
change the class to AFX_CLASS_EXT....
BUILDING ........ok
copy the lib and dll and .h files to my project (based CDialog)
setting->link input my lib file name
change the class to base CBmpDlg;
buiding ........ok
but when I run the programe,error!!!
see the picture (one is debug two is release)
http://www.vchelp.net/cndevforum/subject_view.asp?subject_id=148807&forum_id=59[^]
THANK YOU!

2249173-Jul-05 18:29