Re: CPU Usage For Per Thread(Please Help Me !!!) - C / C++ / MFC Discussion Boards

Replacing a substring using a string class

Igor Mihailov28-Jul-04 2:29

28-Jul-04 2:29

Can anybody help me in replacing a substring:

string s1 = "Here goes string - sample string";
string s2;
...
s1.replace...
...
...
s2 must be "Here goes solution - sample solution"

XPiS

Re: Replacing a substring using a string class

Dimitris Vasiliadis28-Jul-04 2:59

Dimitris Vasiliadis

28-Jul-04 2:59

s2 = s1.Replace("string", "solution");

Check the syntax at MSDN here [^]

...Plug & Pray... Dead | X|

Barcode application

Anonymous28-Jul-04 1:40

Anonymous

28-Jul-04 1:40

HI,

I have a Barcode reader ,,that is attahced with COM port.

I wanaa make application that recv the data when i read from Barcode reader ,, n show it ..

any sample .. help

thanx

CPU Usage For Per Thread(Please Help Me !!!)

A_Fa28-Jul-04 1:28

A_Fa

28-Jul-04 1:28

I'm looking for a method to get Per Thread CPU Usage in VC++.
I know you can get total with PerformanceCounter _Total - but
I want per thread CPU Usage.
Thanks alot .

Re: CPU Usage For Per Thread(Please Help Me !!!)

basementman28-Jul-04 4:10

basementman

28-Jul-04 4:10

See GetThreadTimes() API.

onwards and upwards...

Re: CPU Usage For Per Thread(Please Help Me !!!)

A_Fa28-Jul-04 20:43

A_Fa

28-Jul-04 20:43

Thank you very much .
Your guide is very good .

Re: CPU Usage For Per Thread(Please Help Me !!!)

David Crow28-Jul-04 6:07

David Crow

28-Jul-04 6:07

That's what the szInstanceName member of PDH_COUNTER_PATH_ELEMENTS is for. The threads (instances) are 0-based. See my response here. Change szObjectName to "Thread", assign szInstanceName a value, change szParentInstance to the name of the process that has the threads.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: CPU Usage For Per Thread(Please Help Me !!!)

A_Fa28-Jul-04 22:19

A_Fa

28-Jul-04 22:19

Thanks a'lot for your guide .

Default user credentials with WinInet

cheesepirate28-Jul-04 1:17

cheesepirate

28-Jul-04 1:17

It appears to me that IE, if challenged by a web server for authorization will send my current username/password and try and authorise me with those before asking for another username/password.

Is there something I can get obtain from the system to authorise a user with without having to ask for and supply the username/password? It looks like C# has something along these lines in CredentialCache.DefaultCredentials, but I need pure Win32 methods.

statically linking an executable

Anonymous28-Jul-04 0:04

Anonymous

28-Jul-04 0:04

i have created a VC++ application. The .exe depends on few dlls. one of them is MSJET35.dll. i converted the dll into MSJET35.lib. now, i want to statically link this library with my exe so that it runs independently on any machine irrespective of the presence of MSJET35.dll. but i do not know how to link statically with a library. need help, suggestions on this matter

Re: statically linking an executable

Johan Rosengren28-Jul-04 9:10

Johan Rosengren

28-Jul-04 9:10

You can't convert a DLL to a static lib without the source code. Most likely, you've succeeded in creating an import lib for the DLL. MSJET32.DLL sounds like a MS ODBC-DLL, there's no chance you'll ever be able to link it statically to your app Smile | :)

LPWSTR substring?

ting66827-Jul-04 22:39

ting668

27-Jul-04 22:39

HI~

How to search a substring from LPWSTR?
Also I cannot extract a character like string class

e.g
I cannot do this:

LPWSTR a_string = _T("abcdef")
if (a_string[2] == 'c'){...}

How to extract a character is the string is LPWSTR type?

Thanks

Re: LPWSTR substring?

Dimitris Vasiliadis28-Jul-04 3:17

Dimitris Vasiliadis

28-Jul-04 3:17

LPWSTR a_string = _T("abcdef");
if (a_string[2] == (WCHAR)'c'){...}

...Plug & Pray... Dead | X|

Re: LPWSTR substring?

Michael Dunn28-Jul-04 10:10

Michael Dunn

28-Jul-04 10:10

Dimitris Vassiliades wrote:
(WCHAR)'c'

Actually the correct syntax is L'c' for wide-char literals. (Your code will work but I didn't want the original poster to get the idea that casts are the solution for string-related stuff.)

--Mike--
Personal stuff:: Ericahist | Homepage
Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt
CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ
----
Actual sign at the laundromat I go to: "No tinting or dying."

Re: LPWSTR substring?

Archer28211-Sep-04 6:29

Archer282

11-Sep-04 6:29

LPCTSTR SubString( LPCTSTR lpExpression, // [in] Pointer to a string to extract the substring from
ULONG nStart, // [in] Starting point
LONG nLength = -1 ) // [in] how far to go from the startig point, use -1 to go the end of lpExpression
{

if( nLength < 0 )
nLength = strlen(lpExpression) - nStart;

ULONG nPos = 0;
PTCHAR lpResult = new TCHAR[512];

for( ULONG i = nStart; i < (ULONG)(nStart+nLength); i++ )
{
// put the current char from lpExpression into lpResult
lpResult[nPos++] = lpExpression[i];
}

// add the null byte to lpResult;
lpResult[nPos] = '\0';

// return the substring
return lpResult;

}

wt abut Bar code reader

Anonymous27-Jul-04 22:28

Anonymous

27-Jul-04 22:28

Hi,

i m recving data from bar code reader ,, on Socket

In which format a bar code reader send data ..

i m not properly formating it.

2 .... as to format integer
CString s;
int value
DWORD dval
s.Foramt( "%d" , value);
wt i will use for DWORD in place of "%d" in format

thanx

custom control crashes dialog

Bilge Kaan27-Jul-04 21:49

Bilge Kaan

27-Jul-04 21:49

INT_PTR nResponse = dlg.DoModal();

return -1 if when i add a custom control using resource editor.
how can i solve this?

Re: custom control crashes dialog

Tomasz Sowinski28-Jul-04 1:14

Tomasz Sowinski

28-Jul-04 1:14

Probably the window class for custom control is not registered before DoModal call. Are you trying to call RegisterClass in OnInitDialog?

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

Alika masiaka!

Able to add records with ADO but, cant get them display in dialog

dizzyh27-Jul-04 20:37

dizzyh

27-Jul-04 20:37

Hi all

I have a little problem. I am using ADO to connect to a database, I have managed to add records to this db, but when I want them displayed the recordset is empty, what am i doing wrong?
Is it possibly because access 2000 has limitations on the amount of fields you can view?, Is it because ADO has limitations on the record set?, I have even copied working code from another program and still the record set is blank!

Here is the code:

<br />
void CViewRptDlg::OnShowReport()<br />
{m_strConnection = _T("DSN=Report_prg");<br />
m_strCmdText = _T("Select * From R_tbl where MonthName='"+CString(m_strMonth)+"' and WardNumber='"+CString(m_strWard)+"'");<br />
	m_pConnection = NULL;<br />
	m_pCommand = NULL;<br />
	m_pRs = NULL;<br />
	m_piADORecordBinding = NULL;<br />
	::CoInitialize(NULL);<br />
<br />
	try<br />
	{<br />
<br />
		m_pConnection.CreateInstance(__uuidof(Connection));<br />
		m_pCommand.CreateInstance(__uuidof(Command));<br />
		m_pRs.CreateInstance(__uuidof(Recordset));<br />
		m_pRs->Open(LPCTSTR(m_strCmdText),LPCTSTR(m_strConnection),adOpenDynamic,adLockOptimistic,adCmdUnknown);<br />
if(FAILED(m_pRs->QueryInterface(__uuidof(IADORecordBinding),(LPVOID*)&m_piADORecordBinding)))<br />
				_com_issue_error(E_NOINTERFACE);<br />
				m_piADORecordBinding->BindToRecordset(&m_rsRecSet);<br />
				RefreshBoundData();	<br />
	}<br />
	catch(_com_error &e)<br />
	{<br />
		GenerateError(e.Error(),e.Description());<br />
	}<br />
<br />
void CViewRptDlg::RefreshBoundData()<br />
{<br />
	CCustomRs *pRs = GetRecSet();<br />
		<br />
		///////////////// Report ID ////////////////////////////////////<br />
		if(adFldOK == pRs->lReportIDStatus)<br />
			m_nReportID = pRs->m_nReportID;<br />
		else<br />
			m_nReportID = 0;<br />
		/////////////////////////////////////////////////////////////////<br />
		/////////////////// Month Name //////////////////////////////////<br />
		if(adFldOK == pRs->lMonthNameStatus)<br />
			m_strMonth = pRs->m_szMonthName;<br />
		else<br />
			m_strMonth = _T("");<br />
		/////////////////////////////////////////////////////////////////<br />
		////////////////// Ward Number //////////////////////////////////<br />
		if(adFldOK == pRs->lWardNumberStatus)<br />
			m_strWard = pRs->m_szWardNumber;<br />
		else<br />
			m_strWard = _T("");<br />
		////////////////////////////////////////////////////////////////<br />
UpdateData(0);<br />
}<br />

problem with Edit Box

Anonymous27-Jul-04 20:05

Anonymous

27-Jul-04 20:05

i want to limit the entry size in the edit-box. How do i do? secondly, I want to enter only numbers and special characters into my edit, no characters. how do i change it?

Re: problem with Edit Box

Manfred Staiger27-Jul-04 23:04

Manfred Staiger

27-Jul-04 23:04

You can do this by subclassing your Edit-box. Read this article:

http://www.codeproject.com/miscctrl/subclassdemo.asp[^]

MS

Re: problem with Edit Box

basementman28-Jul-04 10:46

basementman

28-Jul-04 10:46

See the EM_LIMITTEXT message.

onwards and upwards...

Owner drawn windows

Archer28227-Jul-04 19:32

Archer282

27-Jul-04 19:32

Can anyone point me to an example of an MFC owner drawn window? (That does NOT use a remake of CDialog class)

Free Lib to create PDF documents?

Erik27-Jul-04 18:57

Erik

27-Jul-04 18:57

Hi,

I just want to add a cool feature to my application: creation of pdf documents from data in a listview control. However, pdf is a binary format, and therefor not as straightforward to create as for example html.

Does anybody know of a free (maybe open-source?) library that works under Visual C++, to create simple pdf files?

Thank you,

Erik

Re: Free Lib to create PDF documents?

francisquet27-Jul-04 21:58

francisquet

27-Jul-04 21:58

I think PDFlib Lite is free for personal use.

Visit www.pdflib.com and look for PDFlib lite.

Regards

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