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Re: Ownerdrawn ListBox and Tab Stops

Baz16-May-01 0:39

Baz

16-May-01 0:39

Cheers for that! Got it sorted now... Wink | ;)

Hiding the messageboxes that appear on file errors

Joan M15-May-01 23:37

Joan M

15-May-01 23:37

Hello, I'm trying to hide that messageboxes, using:

SetErrorMode(SEM_FAILCRITICALERRORS);

this makes some of the messageboxes to appear, I've thought to use:

SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);

but then I get worse results, how should I do this?

Note: after all the process the system hangs.

Notes about the process:

CreateFile(...);
CreateDirectory(...);
for (...) { CopyFile(...); }
CloseHandle(...);

As always, thank you in advance.

Re: Hiding the messageboxes that appear on file errors

Tomasz Sowinski16-May-01 0:03

Tomasz Sowinski

16-May-01 0:03

It may be not related to the msgbox problem, but why are you keeping some file open during series of CopyFile calls?

Please post code with real parameters instead of "..."; This will make diagnosing easier.

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

Re: Hiding the messageboxes that appear on file errors

Joan M16-May-01 4:58

Joan M

16-May-01 4:58

uiErrorModeANT = SetErrorMode(SEM_FAILCRITICALERRORS);

hArxiuLog = CreateFile (filename,GENERIC_WRITE,FILE_SHARE_WRITE | FILE_SHARE_READ,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_ARCHIVE,NULL);
if (hArxiuLog != INVALID_HANDLE_VALUE)
{
dwFileSize = GetFileSize(hArxiuLog,NULL);
SetFilePointer (hArxiuLog, dwFileSize, NULL, FILE_BEGIN);

::CreateDirectory(TCCApp.GetAccesRegistre()->GetRefsPathRespatllar(),NULL);
::CreateDirectory(TCCApp.GetAccesRegistre()->GetProgramesPathRespatllar(),NULL);

iLimit = dlgPare->m_clbRestantsRespatllar.GetCount();

while ((iComptador < iLimit) && (!dlgPare->m_bCancelThread) && (!bTrobatError))
{
dlgPare->m_clbRestantsRespatllar.GetText(0,dlgPare->m_vstatRespatllantACT);
dlgPare->m_clbRestantsRespatllar.DeleteString(0);
dlgPare->UpdateData(FALSE);
dlgPare->m_clbRestantsRespatllar.RedrawWindow();

// the paths change in each loop iteration (here's not that piece of code...

iRetornOperacioCopia = CopyFile(csFullPathOrigenReferencia, csFullPathDestiReferencia, FALSE);

if (iRetornOperacioCopia == 0)
{
iErrorsTrobats++;
csAuxiliar += " : registrado error en éste proceso";
bTrobatError = true;
}

iComptador++;
}

// Posicionar el punter en l'arxiu (anar al final...)
dwFileSize = GetFileSize(hArxiuLog,NULL);
SetFilePointer (hArxiuLog, dwFileSize, NULL, FILE_BEGIN);

// csArxiuLog is a String that changes in each copy operation.
WriteFile(hArxiuLog,csArxiuLog,strlen(csArxiuLog),&dwNBWritten,NULL);
CloseHandle(hArxiuLog);
csArxiuLog.ReleaseBuffer(0);
}

// Get back to the original err mode.
SetLastError(0);
SetErrorMode(uiErrorModeANT);

Re: Hiding the messageboxes that appear on file errors

Tomasz Sowinski16-May-01 5:15

Tomasz Sowinski

16-May-01 5:15

when exactly messageboxes are displayed? During CopyFile?

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

Flushing data into the registry (How to?)

Joan M15-May-01 23:21

Joan M

15-May-01 23:21

Hello, I'm trying to get some data written into the registry when the user updates a password in my app.

I'm using:

RegOpenKeyEx(HKEY_LOCAL_MACHINE,csPathSubClau,0,KEY_ALL_ACCESS,&Key);

RegSetValueEx(hKey,csValor,0,REG_SZ,(BYTE *)csNouValor.GetBuffer(iLength),iLength);

RegFlushKey(hKey);
RegCloseKey(hKey);

but the data is only flushed when I close my app, could you give me an idea?

thank you in advance.

how to change a char to an int

hearties15-May-01 22:28

hearties

15-May-01 22:28

I want to extract the first char from a string and test if it is equal to an int in a for loop.

char c;
for (int i=1, i

Re: how to change a char to an int

Christian Graus15-May-01 22:31

Christian Graus

15-May-01 22:31

cast it.

Christian

I've learned that you cannot make someone love you. All you can do is stalk them and hope they panic and give in.

The early bird may get the worm, but it's the second mouse that gets the cheese.

Re: how to change a char to an int

hearties15-May-01 22:36

hearties

15-May-01 22:36

how to ?
tried this

for ((int)c == i)

it still doesnt work.... Cry | :((

Re: how to change a char to an int

Christian Graus15-May-01 22:43

Christian Graus

15-May-01 22:43

Oh, I see. The code snippet you posted was broken, so I didn't spot exactly what you wanted to do. I just compiled this no worries:

<br />
<br />
	char c = 'c';<br />
<br />
	for (int i = 0; i < 255;i++)<br />
	{<br />
		if ( i == (int)c) break;<br />
	}<br />
<br />
	for (int j = 0; j < i; j++)<br />
		printf("c");<br />

so I'd suggest you create a new int, and make it equal to (int) c, then make a loop of it. If ( as I assume, otherwise there would be no point ) you want to output this character, you need merely say c = z ( assuming z is the (int) of c to start with in the loop ) and it should work. You MAY need to make c a char * with two elements to ensure element 2 is a 0 though.

Christian

I've learned that you cannot make someone love you. All you can do is stalk them and hope they panic and give in.

The early bird may get the worm, but it's the second mouse that gets the cheese.

Re: how to change a char to an int

Michael Dunn16-May-01 5:34

Michael Dunn

16-May-01 5:34

You don't need to do anything. The char will be implicitly converted to an int (look up "integral promotion" in your help docs) to do the comparison.

--Mike--
http://home.inreach.com/mdunn/
Tables, ladders, chairs, OH MY!

The good use of AddDocTemplate()

15-May-01 21:33

Someone can tell me the exact role of this ?

Thank

Yuri

SMTP - Client

Gunnar Mätzler15-May-01 20:57

Gunnar Mätzler

15-May-01 20:57

Hi folks,

i have an environment where the server is unix and the workstations are Windows NT. Now the admin wants to send smtp-messages to the workstations. (like "i will shutdown the server in 10 seconds") i think this means i have to write small smtp-servers on all workstations which do nothing more than listen on port 25 for incoming mails, recieve them and pop them up on the screen. Anyone out there who has ever done something like this? Any help would be appriciated! Smile | :)

Re: SMTP - Client

markkuk16-May-01 1:05

markkuk

16-May-01 1:05

SMTP is not suitable for this purpose. It's for sending email, not popup notifications. Tell your administrator to find a better protocol, or define one himself.

Re: SMTP - Client

Giles16-May-01 2:09

Giles

16-May-01 2:09

Yep, it sounds like you need to use Net Send from the command prompt. but I would not know how to implement this from the UNIX side. He could just send the notification from the NT Server\Domain.

Giles

Grid Control

15-May-01 20:31

Dear All,

I have been stuckup by a problem i want to change the bakgroud color
of each indiviudal cell of the grid control
can any one help me on this Cry | :((

Sumanth Kalidindi
Hyderabd

Partial repaint

15-May-01 17:28

Greetings,

Status: Large graphics intense project using C and Win32 with the GDI

Problem: After short periods of use the client area stops repainting correctly (partial repaint 1/3 of client area). Afterwords most of windows graphics functions are messed up and menus and stuff can't redraw

System: Windows NT 4.0 sp4, Visual C++ 6.0 sp5, 1GB RAM.
Help solving this problem would greatly be apreciated (I have it narrowed to one function) out of 120,000 lines of code
Please mail me if you have any ideas (message queue, GDI issues....)

Randy@NeuronEntertainment.com

Sincerely,
Randy Trulson

Re: Partial repaint

Christian Graus15-May-01 17:41

Christian Graus

15-May-01 17:41

You have what is called a memory leak. You have run out of GDI resources, and so the whole thing is melting down. As you are using Win32, you need to be extra careful to Destroy EVERY handle that you create when you are finished with it. If it's any consolation, I changed an MFC function to straight C, and spent two nights debugging the memory leaks, because there was so much more I needed to take care of.

Christian

I've learned that you cannot make someone love you. All you can do is stalk them and hope they panic and give in.

The early bird may get the worm, but it's the second mouse that gets the cheese.

Weird Multithreading - Driving Me Nuts

Stephen Caldwell15-May-01 15:17

Stephen Caldwell

15-May-01 15:17

I'm trying to create a multithreaded server program. After I create the thread that listens for incoming connections it will go for a little while then it'll crash. I usually get some error in barcore.cpp. I have no idea what's causing this. Here is the code i use for my listen function.

UINT PASCAL CLJFileServer::ListenProc(LPVOID *pParam)
{
CLJFileServer *pThis = (CLJFileServer*)pParam;

CTimeoutSocket* pClient = NULL;
pThis->m_pListen = new CTimeoutSocket();
pThis->m_pListen->Create(pThis->m_uPort);

while(pThis->m_bStop != true)
{
if (pClient)
delete pClient;

pClient = new CTimeoutSocket;
pThis->m_pListen->SetTimeout(LJ_TIMEOUT);
int bAccepted = pThis->m_pListen->Accept(*pClient);

if (bAccepted)
{
pThis->SendAck(pClient);

if (pThis->m_uServerType == LJFS_LISTEN)
pThis->Login(pClient);

pThis->ForwardConnection(pClient);
}

}
delete pThis->m_pListen;
return 0;
}

Any ideas. I will email you my code if you need a better idea. Thanx in advance. Wink | ;-)

Stephen Caldwell
Desick Information Technologies

A Question on Setting the Day State of a Month Calendar Control

15-May-01 15:10

I inserted a month calendar control (CMonthCalCtrl) into my project, and handle the MCN_GETDAYSTATE notification message to set day state (e.g. to emphasize every Friday). It's pretty easy for the current month of the calendar. However, when user change the date, for example, from Jan 2000 to Dec 1999, I cannot expect which month the calendar will change to and I have no idea how to calculate which day is Friday. Is there any one can give me a hint for that? Thanks in advance.

Yijun Confused | :confused:

Re: A Question on Setting the Day State of a Month Calendar Control

Michael Dunn15-May-01 16:18

Michael Dunn

15-May-01 16:18

If all you have is the month/year, you can set a CTime to the 1st of that month, and use CTime::GetDayOfWeek() to get the day of the week that the 1st falls on. From there you can find the Fridays.

--Mike--
http://home.inreach.com/mdunn/
The Signature, back by popular demand: Buffy. Pajamas.

Thanks, but...

16-May-01 3:54

Thanks for your answer. But what troubles me is I don't know which month will be shown. In other words, I want to know how to get the date the calendar will show, so I can caculate which day is Friday.

Yijun

Memory Leak

William Bartholomew15-May-01 13:03

William Bartholomew

15-May-01 13:03

I have the following piece of code in an ATL COM component that I have developed. What this piece of code does is create a COM instance of another object inside the same COM component. However, somewhere in this piece of code is a memory leak. I have tested the COM object that is being created here seperately and it does not have a leak so it must be somewhere in this creation/destruction code... could anyone please let me know if they see something glaringly wrong? Thanks.

// Calculate the checksum
HRESULT hr = NULL;
IHash *IHash = NULL;

// Now we will intilize COM
hr = CoInitialize( 0 );

// Use the SUCCEEDED macro and see if we can get a pointer
// to the interface
if ( SUCCEEDED( hr ) )
{
hr = CoCreateInstance( CLSID_Hash, NULL, CLSCTX_INPROC_SERVER, IID_IHash, (void**)&IHash );

if ( SUCCEEDED( hr ) )
{
BSTR* szReturn = new BSTR;

IHash->Digest( szTemp.m_str, szReturn );
IHash->Release();

szTemp.AppendBSTR( *szReturn );

delete szReturn;
}
}

Re: Memory Leak

Gerald Schwab15-May-01 16:18

Gerald Schwab

15-May-01 16:18

I didn't think you could create BSTR's this way. I think you have to call SysAllocString(). Or could it be that you are not freeing your BSTR? Just a guess....

Re: Memory Leak

Michael Dunn15-May-01 16:25

Michael Dunn

15-May-01 16:25

You're handling your BSTRs wrong. When a method returns a string through a BSTR*, you pass the address of a BSTR, not a BSTR* (if that makes sense). Smile | :)

BSTR bsReturn;
  ...
  IHash->Digest ( szTemp.m_str, &bsReturn );
  ...
  SysFreeString ( bsReturn );

You can also use CComBSTR or _bstr_t which do the memory management for you.

--Mike--
http://home.inreach.com/mdunn/
The Signature, back by popular demand: Buffy. Pajamas.

Last Visit: 31-Dec-99 18:00 Last Update: 15-Jun-24 17:49

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