Re: ShellExecute problem - C / C++ / MFC Discussion Boards

rajeevktripathi9-Apr-06 18:25

9-Apr-06 18:25

Hi Thans for your replies
Michael Dunn, I wanna exactly what you said, Infact I need it in a wiping tool so it is there any way to show these MFU programs.

Please reply
Thanks

ShellExecute problem

QuickDeveloper7-Apr-06 19:46

QuickDeveloper

7-Apr-06 19:46

hi all

I want to check for a valid IP address.the code is as follows

CString strFileName=_T("C:\\Windows\\System32\\Ping.exe");
CString strIpaddress=_T("10.37.8.4");

if(!(int)ShellExecute(NULL,_T("open"), strFileName,strIpaddress,NULL,SW_SHOW) == ERROR_FILE_NOT_FOUND)
{
AfxMessageBox(_T("Successful"));
}
else
{
AfxMessageBox(_T("Ping Failed"));
}

The Problem is that when i execute this it opens the Ping.exe and it checks for valid address but the message box "Successful" is not displayed..instead "Ping Failed" is displayed even after executing Ping exe successfully.

What could be the problem??

Are there any other ways to check for Valid IP address(i.e URL name) like gethostbyname()??

"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"

-- modified at 6:17 Saturday 8th April, 2006

Re: ShellExecute problem

includeh107-Apr-06 20:10

includeh10

7-Apr-06 20:10

r u drunk?
do u read ur code:
ShellExecute()==ERROR_FILE_NOT_FOUND
?

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Re: ShellExecute problem

QuickDeveloper7-Apr-06 20:24

QuickDeveloper

7-Apr-06 20:24

includeh10 wrote:
ShellExecute()==ERROR_FILE_NOT_FOUND

for your info ShellExecute returns ERROR_FILE_NOT_FOUND if the specified file is not found.i typecasted into int though i didn't store into the HINSTANCE....

still waiting for the reply.... Smile | :)

"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"

Re: ShellExecute problem

Hamid_RT7-Apr-06 21:09

Hamid_RT

7-Apr-06 21:09

Hi QuickDeveloper,

I run your code(127.0.0) and ping run also a messagebox that ping failed yes?Is your problem?

Re: ShellExecute problem

QuickDeveloper7-Apr-06 22:30

QuickDeveloper

7-Apr-06 22:30

WhiteSky wrote:
Is your problem

Yes

"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"

Re: ShellExecute problem

Hamid_RT7-Apr-06 22:50

Hamid_RT

7-Apr-06 22:50

QuickDeveloper,
maybe I mistake but,I think you need to change afxmessage(succes) with afxmessage(fail) because ping is run
ping is run (show Messagebox(successful))and show window ping that is reply from...

Hope I understood your question

Re: ShellExecute problem

Matt Godbolt8-Apr-06 1:12

Matt Godbolt

8-Apr-06 1:12

If you just want to check if the IP address itself is a valid IPV4 address, you can use:

unsigned long ip = inet_addr("10.37.8.4");
if (ip == INADDR_NONE)
{
    // The IP didn't parse as a valid address.
}
else
{
    // The IP parsed, and its network-order address has been placed into the 32-bit variable 'ip'
}

inet_addr() is to dotted quads what gethostbyname() is for host names.

Matt Godbolt
Engineer, ProFactor Software
StyleManager project

Re: ShellExecute problem

Michael Dunn8-Apr-06 12:19

Michael Dunn

8-Apr-06 12:19

Three problems:
One, your comparison is buggy. ! has higher precedence than == so the comparison isn't doing what you want. Rewrite it to use != which is clearer.
Two, your check of the return value is wrong. From the ShellExecute() docs:

Returns a value greater than 32 if successful, or an error value that is less than or equal to 32 otherwise.

Three (and most significant) ShellExecute()'s return value only tells you if the app was launched. It tells you nothing about what the app did.

--Mike--
Visual C++ MVP Cool | :cool:

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Re: ShellExecute problem

Gary R. Wheeler8-Apr-06 12:50

Gary R. Wheeler

8-Apr-06 12:50

I'll take a slightly different tack from the other responses.

Try checking out the IcmpSendEcho[^] function in the IP Helper library. This performs a 'ping' for you, and you don't have to worry about running a separate program.

Software Zen: delete this;

Fold With Us![^]

about VSS

FlyWithYou7-Apr-06 19:25

FlyWithYou

7-Apr-06 19:25

Hello.

1.How to modification VSS label or VSS comment in VS.NET 2003?

2.how VSS auto add the keyword on check in?

$Archive: /1.cpp $
$Revision: 5 $
$Date: 12/02/06 10:22 $
$Author: none $

Thanks.

searching files

RabiaAslam7-Apr-06 18:09

RabiaAslam

7-Apr-06 18:09

hi.....
i want to know how to search a file for a keyword. the problem that i am facing is that the file may be of any extension i.e. .doc, .txt, .html, .ppt etc......\
is there any way to do so......as some search engine searches for files..
plz guide me according to MFC...thanx

RabiaAslam

Re: searching files

Hamid_RT7-Apr-06 18:45

Hamid_RT

7-Apr-06 18:45

Hi RabiaAslam,
if you want to searches a directory for a file use FindFirstFile

Re: searching files

Aqueel7-Apr-06 19:10

Aqueel

7-Apr-06 19:10

Assalamoalaikum
Rabia!
Your question has some ambiquity. Do you want to search a file or search a word in a specific file?
Explain exactly what do you want to do?

Good luck

We Believe in Excellence
www.aqueelmirza.cjb.net

Re: searching files

RabiaAslam8-Apr-06 0:00

RabiaAslam

8-Apr-06 0:00

yes u got the right point ... i want to search for a word in s specific file

RabiaAslam

Re: searching files

Hamid_RT8-Apr-06 1:49

Hamid_RT

8-Apr-06 1:49

RabiaAslam,

so maybe it is some helpful to you
http://www.codeproject.com/file/scanr.asp[^]

Re: searching files

ThatsAlok7-Apr-06 19:38

ThatsAlok

7-Apr-06 19:38

RabiaAslam wrote:
is there any way to do so......as some search engine searches for files..plz guide me according to MFC...thanx

you can try CFileFind Class or have a look at this article :- http://www.codeproject.com/file/cfilefinderex.asp[^]

Re: searching files

ThatsAlok7-Apr-06 19:40

ThatsAlok

7-Apr-06 19:40

RabiaAslam wrote:
s there any way to do so......as some search engine searches for files..plz guide me according to MFC...thanx

what about CFileFind or have a look at this article :-
http://www.codeproject.com/file/cfilefinderex.asp

Re: searching files

Hamid_RT7-Apr-06 19:45

Hamid_RT

7-Apr-06 19:45

or http://www.codeproject.com/dialog/searchfolders.asp[^]

Re: searching files

Aqueel7-Apr-06 19:59

Aqueel

7-Apr-06 19:59

Assalamoalaikum
Rabia!
if you want to search a word within a file, this class by James Moody will help you.
http://www.codeguru.com/cpp/cpp/cpp_mfc/article.php/c4037/[^]
Good luck

We Believe in Excellence
www.aqueelmirza.cjb.net

Balanced Binary Trees

TranscendentalSoftware7-Apr-06 17:39

TranscendentalSoftware

7-Apr-06 17:39

For the source code to 5 different kinds of balanced binary trees see http://www.5trees.com. Please enjoy.

5Trees

Re: Balanced Binary Trees

El Corazon7-Apr-06 20:09

El Corazon

7-Apr-06 20:09

what if we want an optimized imbalanced binary tree? (otherwise known as a splay tree) I do normally use AVL trees, but not always. Smile | :)

_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)

Re: Balanced Binary Trees

TranscendentalSoftware7-Apr-06 20:21

TranscendentalSoftware

7-Apr-06 20:21

Jeffry J. Brickley wrote:
what if we want an optimized imbalanced binary tree? (otherwise known as a splay tree) I do normally use AVL trees, but not always.

I have looked at splay trees but I have not researched them in depth. Personally I am very fond of the original AVL Algorithms. AVL algorithms are rock solid and may be applied to finite ordered sets, dynamic arrays, maps and tables (see http://www.5trees.com for definitions of these terms). I intend to stick with AVL trees rather than research on Splay Trees or RedBlack Trees - I'll leave that to others. Interestingly, the STL standard for Maps uses RedBlack Trees. 5Trees uses AVL to implement associative arrays.

Cheers,
Ben.

5Trees

Re: Balanced Binary Trees

Blake Miller10-Apr-06 5:15

Blake Miller

10-Apr-06 5:15

I favor Ternary Search Trees.

People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

CAsyncSocket Question

JBAK_CP7-Apr-06 14:30

JBAK_CP

7-Apr-06 14:30

Hi I'm using a CAsyncSocket to create a TCP socket and connect to a server. Everytime I connect, the error code I get is a WSAEWOULDBLOCK, whether the server is there or not. So, the only way I know if I am connected or not is to send a message to the server, and I have to look to see if I have a send error of WSAENOTCONN to determine if my connection was a success or not. Is there any way, to know if I am really connected or not when I try to do a 'connect', instead of the approach that I'm taking right now?

Thank you,

//Code
m_pSock.Create(); //Create the socket
if (!m_pSock.Connect(IP, PORT))
{
DWORD error1 = GetLastError();
if(error1 == WSAEWOULDBLOCK)
{
iSent = m_pSock.Send((void *)messages[0],32);
if(iSent == SOCKET_ERROR)
{
DWORD error2 = GetLastError();
if(error2 == WSAENOTCONN )
{
MessageBox("SOCKET NOT CONNECTED",NULL,NULL);
}
}
}
}

-- modified at 20:30 Friday 7th April, 2006

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