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Re: Strange behavior from CRecordset

Jimmy Ehrnström4-Sep-01 1:30

Jimmy Ehrnström

4-Sep-01 1:30

Yes after a lot of trouble I finally figured out that one of my tables were missing a primary key. When I added one it worked fine.

The reason I could only update tables when using dynaset, and not snapshots, was because I've missed the fact that one has to specify the useCursorLib flag when working with snapshots.

The problem you're describing sounds strange though. Did you perhaps "run out" of ID's?

Thanks for your time anyway! My program is working now. However, I feel it's kind of slow. But that depends on the huge amount of database accesses I do.

Reflection Message Handler

sankar20-Jul-01 0:21

sankar

20-Jul-01 0:21

Hi
Can anyone explain me how to implement a Windows Message Handler ( Reflection ) -
I have a Dialog box which has a CListCtrl & I would like the ListCtrl to handle the WM_MouseMove & not the dialog box. SO, I added a Windows Message Handler Using the class view for WM_MouseMove . Now, how can I pass this on to the CListCtrl??

it's like this:

Class Sample is the dialog class. and the list control is placed inside this dialog box.

void Sample :: OnMouseMove ( .. , .. )
{
????
}

Any sample would be very useful.

Thanks
Sankar

Re: Reflection Message Handler

Diarrhio20-Jul-01 1:37

Diarrhio

20-Jul-01 1:37

I believe you have to derive a class from CListCtrl, and add the handler there. You can do all of this through ClassWizard.

Let me know if you need more help.

Re: Reflection Message Handler

Tomasz Sowinski20-Jul-01 1:38

Tomasz Sowinski

20-Jul-01 1:38

Do you want to handle WM_MOUSEMOVE received by dialog in CListCtrl-derived class? Why?

Tomasz Sowinski -- http://www.shooltz.com

method find

Gérald Mercet19-Jul-01 22:32

Gérald Mercet

19-Jul-01 22:32

I have created a dlgbox application, where the user could put a string like "1Y", and i need to catch values which are kept in the field named "1Y". So, is the method Find, which the best or not?

thanks in advance

gerald

Confused | :confused:

CListCtrl

19-Jul-01 22:25

How do you do to not resizing the last column on the right in a CListCtrl
Thanks

DoModal method

Farah Mansor19-Jul-01 20:30

Farah Mansor

19-Jul-01 20:30

Hi all,
Can somebody help me on this.
I create one dialog let say First dialog. On my First dialog I will validate the OnOK button and if it true open Second dialog. But before I open it, I should dispose the First dialog. This program work ok on my pc(which got visual c++). However when I install in a new pc, it doesn't open the Second dialog. The DoModal method return -1 in a new pc (I check this using text file).
The codes are like these:

in MyApp class:
MyClass::InitInstance()
{
CFirstDlg firstDlg;
m_pMainWnd = &firstDlg;
int nResponse = firstDlg.DoModal();
}

in CFirstDlg class:
CFirstDlg::OnOK()
{
if (validate)
{
CDialog::EndDialog(TRUE);
CSecondDlg secondDlg;
int nResponse = secondDlg.DoModal();
// print nResponse to text file
if (nResponse < 0)
AfxMessageBox("cannot open second dialog");
else
AfxMessageBox("Second dialog opened");
}
else
{
...
}
}

The problem is how can I make sure that the DoModal method will give me a positive value so it can display the second dialog?? My second dialog is using thread and the first dialog don't. Is the thread give me the problem??
What make me feel weird is it works fine in my pc so I cannot detect what's wrong with the code. Confused | :confused:

Anybody can help me??
Thanks in advance.

FM

Re: DoModal method

Michael Dunn19-Jul-01 20:59

Michael Dunn

19-Jul-01 20:59

Sounds like the second dialog either a) contains an ActiveX control that isn't installed, or b) is trying to instantiate a COM object that isn't installed.
Post your CSecondDialog::OnInitDialog() code.

--Mike--
http://home.inreach.com/mdunn/
"You named the Borg... Hugh?"
-- Guinan

Re: DoModal method

Farah Mansor19-Jul-01 21:48

Farah Mansor

19-Jul-01 21:48

This is CSecondDlg::OnInitDialog() code:

BOOL CSecondDlg::OnInitDialog()
{
CDialog::OnInitDialog();
...
// TODO: Add extra initialization here

// Create a StatusBar
CRect rect;

if (!m_wndStatusBar.Create(WS_CHILD|WS_VISIBLE, rect, this, IDC_STATUSBAR_STATIC))
{
TRACE0("Failed to create status bar\n");
return -1;
}

// give first status bar pane a border

int strPartDim[3]= {100, 130, -1};

m_wndStatusBar.SetParts(3, strPartDim);

DisplayTime(); // to display time in status bar

// 1st Thread
CWzdThread* kpThread = (CWzdThread*)AfxBeginThread(RUNTIME_CLASS(CWzdThread), THREAD_PRIORITY_NORMAL, 0, CREATE_SUSPENDED);
kpThread->SetOwner(this);

if (!kpThread)
{
ASSERT(FALSE);
return FALSE;
}

pThread = kpThread;

pThread->ResumeThread();

// 2nd Thread
CAnotherThread* kpThread1 = (CAnotherThread*)AfxBeginThread(RUNTIME_CLASS(CAnotherThread), THREAD_PRIORITY_NORMAL, 0, CREATE_SUSPENDED);
kpThread1->SetOwner(this);

if (!kpThread1)
{
ASSERT(FALSE);
return FALSE;
}

pThread1 = kpThread1;

pThread1->ResumeThread();
}

m_bInformCSDA = FALSE;
SetTimer(ID_COUNT_TIMER, 50, NULL);

return TRUE; // return TRUE unless you set the focus to a control
}

My second dialog also using ActiveX control (for Winsock and create registry). Do these controls give me the problem??

Thanks in advance.

FM

Question About CObArray

prog758419-Jul-01 15:50

prog7584

19-Jul-01 15:50

i made CPoint object and inserted it in CObArray. by the way, the problem is occured.
i'd guess to be garbage value in there.
i wrote the following code.

--------------------------------------------------

CPoint point(10,10);
ArrFigure.Add((CObject*)&point);

--------------------------------------------------
Since CPoint is not derived from COject?
ask for answer
thank you

have a nice day Smile | :)

Re: Question About CObArray

Rob Manderson19-Jul-01 17:30

Rob Manderson

19-Jul-01 17:30

I'm assuming you call that code inside some function and notice the garbage after the function returns. The reason is that the CPoint is created on the stack and is destroyed when the function returns. To make it work you need to do the following...

ArrFigure.Add(new (CObject *) CPoint(10, 10));

Of course, since CPoint isn't derived from CObject you need to be careful. Better to use the template classes thusly...

CArray<CPoint *, CPoint *> ArrFigure;
ArrFigure.Add(new CPoint(10, 10));

Don't forget that when you destroy ArrFigure you must also destroy each CPoint object (the array object won't do it for you).

Rob Manderson

http://www.mindprobes.net

Re: Question About CObArray

Rob Manderson19-Jul-01 17:31

Rob Manderson

19-Jul-01 17:31

and one second after hitting the submit button I saw it Smile | :)

ArrRigure.Add((CObject *) new CPoint(10, 10));

Doh!!!

Rob Manderson

http://www.mindprobes.net

Re: Question About CObArray

Michael Dunn19-Jul-01 17:31

Michael Dunn

19-Jul-01 17:31

CObArray is an array of pointers - you're adding a pointer to the CPoint object.. That object is probably going out of scope, so when you try to read it later, it's not there anymore.

--Mike--
http://home.inreach.com/mdunn/
"You named the Borg... Hugh?"
-- Guinan

NTSD debugger

sankar19-Jul-01 15:08

sankar

19-Jul-01 15:08

Hi
I have a strange problem. I have an application in VC6.0 which makes use of crystal reports to generate a report. Now thi sapplication works fine in variuos systems under various OS. But , only in one machine ( to my badluck it happens to be the live machine ) this applciation crashes. there's o'cos no MSDEV & source code in that machine.and so, i used the NTSD debugger to get a little mor eknowledge on this and i got the following extract ( I have jus tpasted just a thte point of crsahing )

NTSD ModLoad: 77bc0000 77bc7000 RPCLTC1.dll
NTSD: access violation
NTSD: !!! second chance !!!
eax=7469650a ebx=0000003f ecx=7469650a edx=0000003f esi=8c30cea6 edi=00000004
eip=7800d1c4 esp=0161fb7c ebp=0161fb98 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00000246
*** WARNING: symbols checksum and timestamp is wrong 0x0004ed1e 0x000528d6 for m
svcrt.dll
MSVCRT!set_sbh_threshold+827:
7800d1c4 8906 mov [esi],eax ds:0023:8c30cea6=????????

0:001> kb

ChildEBP RetAddr Args to Child
0161fb98 7800cc1c 00901dc8 8c30cea6 0161fdd7 MSVCRT!set_sbh_threshold+0x827
0161fbdc 7800578c 0093320c 41104111 0093320c MSVCRT!set_sbh_threshold+0x27f
0161fbfc 4110bd0f 009337c0 00000002 00934e60 MSVCRT!_crtGetLocaleInfoW+0x580
0161fc30 4110bc2f 00934e60 0161fc5c 4110a7d6 P2SEVT+0xbd0f
0161fc3c 4110a7d6 00000001 00911170 00934e60 P2SEVT+0xbc2f
0161fc5c 42d6a1f7 009337e0 009337a0 009320a2 P2SEVT!SQLReadNextRecurringRecord+0
x8b
0161fe64 77e42257 005f0778 0000061c 00000000 CRAXDRT!DeleteUFLString+0x124c47
0161fe90 77f663f3 0161fea0 00000018 005f0778 USER32!IsWindow+0xa7
0161fee4 5f401301 00911364 00000000 00000000 ntdll!KiUserCallbackDispatcher+0x13

00911364 00000000 00000000 00000000 00000000 MFC42!Ordinal5307+0x13

Pl. let me know what does this mean .

Thanks

regards
Sankar

Re: NTSD debugger

Tim Deveaux19-Jul-01 16:04

Tim Deveaux

19-Jul-01 16:04

Looks like Crystal Reports (CRAXDRT)is crashing in a call to IsWindow() - hmmm... could be tricky...

Its also telling you the symbol file for the MS C runtime is not the right one (which may be no big deal).

Maybe take a look at all the dependencies in your exe and see if the versions of those DLLs are the same on the problem machine.

Embeded explorer - how?

19-Jul-01 14:34

Hi all,

This has probably been asked before, but I can't find it. I've done the usual generic app. that requires a user to select a bunch of files from one window and drop them into another yadda, yadda. At the moment, my app. mimics explorer by manually drawing tree and list controls and populating the contents based on drive and directory information and the system image list for icons. What would be _really_ nice is the have full explorer functionaility such as context menus and delete / rename functions etc. I assume this can be done by embedding a version of explorer into a view of my application (ala OLE?), but I just don't know where to start, what API's to use or even how to do it, any pointers?

Thanks, Jon.

Problem in Print Preview

19-Jul-01 11:10

Hi,
I have an MDI application with Doc/View arch. I am working on Print/preview feature for the application.
I have the following code in a function that is called when "Print" is chosen:
CPrintDialog *m_PrintDialog = new CPrintDialog(TRUE, PD_ALLPAGES | PD_RETURNDC, NULL);
DOCINFO di;
::ZeroMemory (&di, sizeof (DOCINFO));
di.cbSize = sizeof (DOCINFO);
//application title appears in the spooler view
di.lpszDocName = "Print Test";

if (m_PrintDialog->DoModal() == IDCANCEL)
return;
HDC hpDC = m_PrintDialog->GetPrinterDC();
if (hpDC !=NULL)
{
CDC *pDC = new CDC;
pDC->Attach(hpDC);
pDC->m_bPrinting = TRUE;
// use Textmappingmode
pDC->SetMapMode(MM_TEXT);
TEXTMETRIC tm;
pDC->GetTextMetrics(&tm);
lineHeight = tm.tmHeight + tm.tmInternalLeading;
pageVMargin = pDC->GetDeviceCaps(LOGPIXELSY) / 2;
pageHMargin = pDC->GetDeviceCaps(LOGPIXELSX) / 2;
pageHeight = pDC->GetDeviceCaps(VERTRES);
pageWidth = pDC->GetDeviceCaps(HORZRES);
Y = pageVMargin;
pDC->StartDoc(&di);
for (int i = 0; i<100; i++)
{
pDC->StartPage();
if(!pageStarted || Y > pageHeight - pageVMargin)
{ /* new page */
if(pageStarted)
{
pDC->EndPage();
//pInfo->m_bContinuePrinting=false;
}
//pInfo->m_bContinuePrinting=true;
pDC->StartPage();
pageNumber++;
Y = pageVMargin;
pageStarted = TRUE;
//pInfo->m_nCurPage = pageNumber;
//PageHeading();
} /* new page */
pDC->TextOut(pageHMargin, Y, PrintArray[i]);
Y += lineHeight;
}
pDC->EndDoc();
pDC->AbortDoc();
pDC->Detach();
}

This works fine if the user chooses to print. This function is called from OnPrint function. However, when "print preview" is chosen, nothing shows up. I tried to write similar function but without displaying the print dialog etc. and that prints only the last 6 or so lines on page 1.
Pleeeeeeeeeeease help! I've been doing this for a wk now and it's driving me nuts... I don't know what else to try!!! Dead | X|

Thank you so much for any input...

how can I search a file without extension

19-Jul-01 10:51

My code is:

CListBox* pListBox = (CListBox*)GetDlgItem(IDC_SCREEN_LISTING);
pListBox->ResetContent();

CFileFind finder;
CString extension = "*.fig";
CString filepath = "";

BOOL haveFile = finder.FindFile(extension);

while (haveFile)
{
haveFile = finder.FindNextFile();
pListBox->AddString((LPCTSTR)finder.GetFileTitle());
}

How can I search a file with NO extension....... (no .txt or .ini or...etc....nothing, just the file name...no extension)

Re: how can I search a file without extension

Carlos Antollini19-Jul-01 11:01

Carlos Antollini

19-Jul-01 11:01

Use extension = "*.*";
And in the while
while(haveFile)
{
havefile = finder.FindNextfile();
if(finder.GetFileName().Find(".") == -1)
pListBox->AddString(((LPCTSTR)finder.GetFileTitle());
}

Cheers!!! Big Grin | :-D

Carlos Antollini.

Re: how can I search a file without extension

19-Jul-01 11:36

Thanks for your reply.

I've tried these codes and it works!!!! However, it shows the "Directory name" also......how to get rid of those directory.....

One more thing...do you know how to list files in particular directory?? For example, i want to do the same thing (list all no extension files..)...and search them in directory c:\ABC

Thanks

Re: how can I search a file without extension

Carlos Antollini19-Jul-01 11:45

Carlos Antollini

19-Jul-01 11:45

how to get rid of those directory
you need to use the function CFileFind::IsDirectory()
Like next

while(haveFile)
{
havefile = finder.FindNextfile();
if(finder.GetFileName().Find(".") == -1 && !finder.IsDirectory())
pListBox->AddString(((LPCTSTR)finder.GetFileTitle());
}

how to list files in particular directory

haveFile = finder.FindFile("C:\\ABC\\*.*");
while(haveFile)
{
havefile = finder.FindNextfile();
if(finder.GetFileName().Find(".") == -1 && !finder.IsDirectory())
pListBox->AddString(((LPCTSTR)finder.GetFileTitle());
}

Cheers!!!!
Big Grin | :-D

Carlos Antollini.

Re: how can I search a file without extension

19-Jul-01 12:03

THANK YOU VERY MUCH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

YOU ARE SUPERBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Everything works fine.............

Sorry...one more question.......

Can I search the files in the directory which is under my root directory?

For example, my exe file is in c:\abc\....but you know sometimes I can copy the files to other directory...so i don't know the exact name of the root directory.

For example, there is a file in my root directory called \TESTING......and i want to search all those files with no extension....how to do it.

THANK YOU THANK YOU THANK YOU!!!!

Re: how can I search a file without extension

Carlos Antollini19-Jul-01 12:13

Carlos Antollini

19-Jul-01 12:13

You can use GetCurrentDirectory

char szCurrentDir[_MAX_DIR];

::GetCurrentDirectory(sizeof(szCurrentDir), szCurrentDir);
//Now you have the currentdir in the szCurrentDir variable.

CString strFind = _T(szCurrentDir + "\\*.*");

And make the same that the others samples.

Cheers!!!
Big Grin | :-D

Carlos Antollini.

Re: how can I search a file without extension

Steve T19-Jul-01 12:38

Steve T

19-Jul-01 12:38

Do you want to recursively search for ALL files on your
C: drive with no extension? (exluding directories)

if so you could use the following function ....

void GetAllFiles(CString Dir)
{
CFileFind finder;

CString csFiles(Dir+"\\*.");

BOOL haveFile = finder.FindFile(csFiles);

while (haveFile)
{
haveFile = finder.FindNextFile();

if (finder.IsDots())
continue;

// search all directories recursively
if (finder.IsDirectory()) {
CString csNewDir = finder.GetFilePath();
GetAllFiles(csNewDir);
}else{
pListBox->AddString((LPCTSTR)finder.GetFileTitle()); }
}
finder.Close();
}

And call it with ...

GetAllFiles( "C:" );
if you want the list to show you where all the extensionless
files are on your disk replace

pListBox->AddString((LPCTSTR)finder.GetFileTitle());

with

pListBox->AddString((LPCTSTR)finder.GetFilePath());

Steve T.

Re: how can I search a file without extension

Ben Burnett19-Jul-01 11:48

Ben Burnett

19-Jul-01 11:48

>> ......how to get rid of those directory.....

use the IsDots and IsDirectory members.

>> ...to list files in particular directory

CString extension = "*.*";<br />
CString filepath = "C:\ABC\";<br />
<br />
BOOL haveFile = finder.FindFile ( filepath + extension );<br />
<br />
while ( haveFile ) {<br />
<br />
haveFile = finder.FindNextFile();<br />
<br />
// skip directories<br />
if ( finder.IsDots () || finder.IsDirectory () ) continue;<br />
<br />
//<br />
// do something with the file<br />
//<br />
<br />
}

-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

Last Visit: 31-Dec-99 18:00 Last Update: 3-May-24 22:08

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