C / C++ / MFC

16-Aug-06 22:16

Now what do you need?did you see GDI+

WhiteSky

SetFocus()

SandhyaSri16-Aug-06 19:26

SandhyaSri

16-Aug-06 19:26

Hi,

I have used SetFocus() method many times in a file in my application.The application works fine but when I run my application and move the cursor to open another application(not necessarily a vc++ application) , the application crashes.Is the crash because of the SetFocus()...If so what is the solution.

Thanks in advance.

Sandhya

sunit516-Aug-06 19:28

sunit5

16-Aug-06 19:28

use killFocus()as many no of times as SetFocus()

never say die

prasad_som16-Aug-06 19:52

prasad_som

16-Aug-06 19:52

can you show the code, how you have used setfocus.

Prasad
Notifier using ATL

SandhyaSri16-Aug-06 21:32

SandhyaSri

16-Aug-06 21:32

Actually I am using the PropertySheets.In one of the propertyPage I have some edit controls.For each edit control there is some validation.I have handled these validations in the respective editcontrol's EN_KILLFOCUS event.

For one of the edit boxes the code is as follows:

void CMyFile::OnKillfocusEditRange()
{

CWnd *cwnd=GetFocus();
if(cwnd->GetDlgCtrlID() == IDCANCEL)
return;

else
CheckRanges(IDC_EDIT_RANGE);

}
void CMyFile::CheckRanges(int intID)
{
CString str;
double d1;
GetDlgItemText(intID,str);
d1=_tcstod(str,NULL);
if(d1 > 5 || d1< -5)
{

AfxMessageBox(_T("Range should be in 5 and -5");
pEdit = (CEdit *)GetDlgItem(intID);
pEdit->SetFocus();

}

}

I am doing the same checking even in the OnApply() .(After setfocus I return FALSE otherwise I return "return CPropertyPage::OnApply(); "

After running the application and when the message "Range should be in 5 and -5" is raised ,after clicking the Ok button of the AfxMessageBox ,if I move the cursor to open some other application there is a crash as "the memory cannot be read"

Sandhya

prasad_som16-Aug-06 22:46

prasad_som

16-Aug-06 22:46

I doubt _tcstod is corrupting some memory.
Try commenting that line and just run through same flow i.e. use this code

void CMyFile::CheckRanges(int intID)
{
CString str;
double d1;
GetDlgItemText(intID,str);
//cooment this lined1=_tcstod(str,NULL);
if(1)
{

AfxMessageBox(_T("Range should be in 5 and -5");
pEdit = (CEdit *)GetDlgItem(intID);
pEdit->SetFocus();
}

Prasad
Notifier using ATL

Stephen Hewitt16-Aug-06 21:11

Stephen Hewitt

16-Aug-06 21:11

What kind of crash? Where was the crash? Is there a call stack to the faulting code? Please be more specific and provide at least the answers to the above questions.

Steve

SandhyaSri16-Aug-06 21:31

SandhyaSri

16-Aug-06 21:31

Sandhya

Stephen Hewitt16-Aug-06 21:50

Stephen Hewitt

16-Aug-06 21:50

Firstly, on a side issue, here's an article you may find interesting:
http://blogs.msdn.com/oldnewthing/archive/2004/04/19/115912.aspx[^]

As for your error, you still haven't shown the line where the crash occurs or a stack trace. In general this is the minimum data required to fix any crash.

Steve

Hamid_RT16-Aug-06 22:19

16-Aug-06 22:19

Which line has error?and did you use from breakpoint?

WhiteSky

problem with FTP client[modified]

Mircea Puiu16-Aug-06 22:55

Mircea Puiu

16-Aug-06 22:55

Maybe you are trying to set the focus to a control that exist no longer

SkyWalker

[OT]

toxcct16-Aug-06 23:34

toxcct

16-Aug-06 23:34

hey, skywalker is back ! Big Grin | :-D

still "very-busy busy" ? or you took a break ?

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: [OT]

Mircea Puiu17-Aug-06 0:39

Mircea Puiu

17-Aug-06 0:39

"Back"! That's very ... well said.
I am in the middle of looking for a job Smile | :)

SkyWalker

Re: [OT]

ThatsAlok17-Aug-06 2:09

ThatsAlok

17-Aug-06 2:09

Mircea Puiu wrote:
I am in the middle of looking for a job

but you opened your own company!

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: [OT]

Mircea Puiu17-Aug-06 4:20

Mircea Puiu

17-Aug-06 4:20

I did, Alok. And I closed it Frown | :-(

. And I am back where I belong.

SkyWalker

vijay_aroli16-Aug-06 18:28

vijay_aroli

16-Aug-06 18:28

hello everyone. i am building an FTP client to upload files on to an FTP server. my ftp client can create a folder, upload files and almost does everything when connected to local server. in fact, the code works fine with the local server. but when a remote server is used, my ftp client cannot upload files on to the server. the directory listing also cant be obtained. can anyone help?? its urgent..

thanks..

vijay aroli

Re: problem with FTP client[modified]

Divyang Mithaiwala16-Aug-06 19:57

Divyang Mithaiwala

16-Aug-06 19:57

Hello vijay,

I m not sure but I think it is problem due to Firewall or NAT.

regards,
Divyang Mithaiwala
System Engineer & Software Developer

Re: problem with FTP client[modified]

vijay_aroli16-Aug-06 20:17

vijay_aroli

16-Aug-06 20:17

thank u for replying to me. can u tell me how can i find what the exact problem? the code works fine for the local server and fails for the remote server. plz, its urgent..

Re: problem with FTP client[modified]

vijay_aroli16-Aug-06 21:07

vijay_aroli

16-Aug-06 21:07

hi!! thanks to everyone. the problem has been solved. the problem was that i was using Active mode of transmission for the connection rather than Passive mode. i changed the connection to passive mode and the code worked fine for the remote server too. i again thank everyone.

what went wrong?in this code [modified]

With_problem16-Aug-06 18:08

With_problem

16-Aug-06 18:08

THis code compiles ok when i click priceqoute botton it display request id but when it comes to
next it give a erreor message "invalid market no",and "invalid amount"
Can anybody suggest me how to come out of this....should i change the variable type or what...

<br />
void CWartz_newDlg::OnBpricequote() <br />
{<br />
	// TODO: Add your control notification handler code here<br />
	int pageno(0);<br />
	requestid=m_arielapi.RequestPrices(sessionid,pageno);<br />
    CString displaydata;<br />
   displaydata.Format(_T("==>Request ID [%s]"),requestid);<br />
   LOG(0,displaydata); <br />
<br />
BOOL bSuccess=FALSE;<br />
<br />
for(int n=0;n<3;n++)<br />
{<br />
if(requestid)<br />
{<br />
bSuccess=TRUE;<br />
break;<br />
}<br />
}<br />
if(bSuccess)<br />
{<br />
	long marketno=0;<br />
	CString amount;<br />
	short tradetype=0;<br />
	CString exchange,account,clientref;<br />
<br />
//error when it comes to this function<br />
//invalid marketno,amount<br />
<br />
    m_arielapi.RequestQuote(sessionid,marketno,amount,tradetype,exchange,account,clientref);<br />
CString cstrDisplayData;<br />
<br />
cstrDisplayData.Format(_T("==>[%s][%s][%s][%s][%s][%s][%s]"),sessionid,marketno,amount,tradetype,exchange,account,clientref);<br />
LOG(0,cstrDisplayData);<br />
}<br />
<br />
}<br />

-- modified at 0:20 Thursday 17th August, 2006

Hamid_RT16-Aug-06 22:20

16-Aug-06 22:20

What is it and wheres error?

WhiteSky

Sarath C16-Aug-06 22:38

Sarath C

16-Aug-06 22:38

this function having the problem.
m_arielapi.RequestQuote(sessionid,marketno,amount,tradetype,exchange,account,clientref);

the error is it it is showing "Invalid Market no." etc...

seems some problems with the comparison routine.

SaRath.

"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."

My Blog | Understanding State Pattern

Hamid_RT16-Aug-06 23:46

16-Aug-06 23:46

Its not sufficient for answer,right?he needs to say detaily

WhiteSky

Sarath C17-Aug-06 0:15

Sarath C

17-Aug-06 0:15

yea I said it.

SaRath.

"Before you can learn to recognize what's wrong, you must learn to recognize what's right" - Raymond Chen."

My Blog | Understanding State Pattern