Re: Overriding Base Class Members - C / C++ / MFC Discussion Boards

Re: Linux Text Slowdown- HELP PLEASE

Joe Woodbury10-Mar-09 12:47

Joe Woodbury

10-Mar-09 12:47

That's not bad coding at all.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: Linux Text Slowdown- HELP PLEASE

Adam Maras10-Mar-09 6:57

Adam Maras

10-Mar-09 6:57

Try calling fflush before each sleep call; this way, the text in stdout's buffer gets pushed to the console immediately:

printf("\n\nH");
fflush(stdout);
sleep(2);

printf("e");
fflush(stdout);
sleep(2);

printf("y\n\n");
fflush(stdout);
sleep(2);

Re: Linux Text Slowdown- HELP PLEASE

posidonofthecode10-Mar-09 11:04

posidonofthecode

10-Mar-09 11:04

AWSOMENESS!!!PERFECT. I got it now. Adam Maras I am forever your servant.
Thanks All for your help Big Grin | :-D

Overriding Base Class Members

ForNow10-Mar-09 6:23

ForNow

10-Mar-09 6:23

Hi,

Is the only way to override members of a Base Class (and get to thier private members)

Is by having them declared Virtual ???

Re: Overriding Base Class Members

Eytukan10-Mar-09 6:29

Eytukan

10-Mar-09 6:29

ForNow wrote:
(and get to thier private members)

You must be kidding. Otherwise time to take up the book Wink | ;)

. Hint: You need a friend.
(the David Crow way!)

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

Re: Overriding Base Class Members

Stuart Dootson10-Mar-09 7:59

Stuart Dootson

10-Mar-09 7:59

ForNow wrote:
Is the only way to override members of a Base Class (and get to thier private members)

You can't get to a base class's private members from a derived class through overridden methods, whether they're virtual or not. A derived class can see public and protected members of its base class(es).

And you should also question why you're wanting to get at the base class's private members - either the base class is designed wrong or you're going the wrong way about things.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Overriding Base Class Members

ForNow10-Mar-09 12:34

ForNow

10-Mar-09 12:34

I am refering to the following Article wwww.codeproject.com/KB/threads/extended_thread.aspx

The Author is refering to A Contructer of CWinThread which is not documented in MSDN instead is in the thrdcore.h

In the artice he intilizes private memebers of CWinThead namely m_pThreadParams

m_pThreadParams = this;

class CWinThread : public CCmdTarget {
public:
CWinThread();
CWinThread(AFX_THREADPROC pfnThreadProc, LPVOID pParam); <---- Constructer

BOOL CreateThread(DWORD dwCreateFlags = 0, UINT nStackSize = 0,
LPSECURITY_ATTRIBUTES lpSecurityAttrs = NULL);

virtual BOOL InitInstance();
virtual int Run();
virtual BOOL PreTranslateMessage(MSG* pMsg);
virtual BOOL PumpMessage(); // low level message pump
virtual BOOL OnIdle(LONG lCount); //return TRUE if more idle processing
virtual BOOL IsIdleMessage(MSG* pMsg); //checks for special messages

private:
LPVOID m_pThreadParams; //generic parameters passed to starting function
AFX_THREADPROC m_pfnThreadProc;
HANDLE m_hThread; // this thread's HANDLE
}

Re: Overriding Base Class Members

Stuart Dootson10-Mar-09 12:48

Stuart Dootson

10-Mar-09 12:48

ForNow wrote:
The Author is refering to A Contructer of CWinThread which is not documented in MSDN instead is in the thrdcore.h

In the artice he intilizes private memebers of CWinThead namely m_pThreadParams

m_pThreadParams = this;

Well, see, here's the thing - m_pThreadParams is public (yes, PUBLIC) in the MFC I've got.

Have you got some counterfeit MFC or something?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Overriding Base Class Members

ForNow10-Mar-09 13:06

ForNow

10-Mar-09 13:06

I picked up the layout from a PPT presentation by Konstantin Bukin entitled more threads guess there is a lot of errorous documentation out there

Re: Overriding Base Class Members

Stuart Dootson10-Mar-09 13:28

Stuart Dootson

10-Mar-09 13:28

ForNow wrote:
I picked up the layout from a PPT presentation .. guess there is a lot of errorous documentation

Yeah, the code tends to be the most authoritative source.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Overriding Base Class Members

CPallini10-Mar-09 10:16

CPallini

10-Mar-09 10:16

It's the time to read some good C++ book.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Application Type - DLL (Pt. 2)

su_penguin10-Mar-09 5:58

su_penguin

10-Mar-09 5:58

Ok, so I've followed these steps to the T: http://www.microsoft.com/express/2005/platformsdk/default.aspx

I'm able to see the option to create the DLL, but after I start a new project and compile it, the project is unable to find the 'windows.h' file(s).

Am I not pointing the IDE to the right location?

Here's what I have for my VCProjectEngine.Dll.Express.Config file. The "Larrow" and "Rarrow" are the left and right braces around the XML tags:

Larrow ?xml version="1.0" encoding="utf-8"? Rarrow
Larrow VCPlatformConfigurationFile
Version="8.00"
Rarrow
Larrow Platform
Name="VCProjectEngine.dll"
Identifier="Win32"
Rarrow
Larrow Directories
Include="$(VCInstallDir)include;$(VCInstallDir)PlatformSDK\include;$(FrameworkSDKDir)include;$C:\Program Files\Microsoft SDKs\Windows\v6.1\Include"
Library="$(VCInstallDir)lib;$(VCInstallDir)PlatformSDK\lib;$(FrameworkSDKDir)lib;$(VSInstallDir);$(VSInstallDir)lib;$C:\Program Files\Microsoft SDKs\Windows\v6.1\Lib"
Path="$(VCInstallDir)bin;$(VCInstallDir)PlatformSDK\bin;$(VSInstallDir)Common7\Tools\bin;$(VSInstallDir)Common7\tools;$(VSInstallDir)Common7\ide;$(ProgramFiles)\HTML Help Workshop;$(FrameworkSDKDir)bin;$(FrameworkDir)$(FrameworkVersion);$(VSInstallDir);$(PATH);$C:\Program Files\Microsoft SDKs\Windows\v6.1\Bin"
Reference="$(FrameworkDir)$(FrameworkVersion)"
Source="$(VCInstallDir)crt\src"
/Rarrow
Larrow /Platform Rarrow
Larrow /VCPlatformConfigurationFile Rarrow

Anything wrong here? Maybe another step not being followed correctly?

Thanks

Re: Application Type - DLL (Pt. 2)

Stuart Dootson10-Mar-09 6:25

Stuart Dootson

10-Mar-09 6:25

windows.h will be in the Windows SDK include folder, which is the "$C:\Program Files\Microsoft SDKs\Windows\v6.1\Include" part of the include path.

Is the $ sign really in that bit of the include path, 'cause it looks wrong to me. If that solves your problem, then you'll also want to remove the $ signs in the equivalent parts of the Library and Path environment variables.

Also - does that folder (C:\Program Files\Microsoft SDKs\Windows\v6.1\Include) actually exist?

BTW - my install of VS2005 has $(VCInstallDir)PlatformSDK\include - I guess you've installed a new Platfrom SDK version and asked it to integrate with Visual Studio?

Re: Application Type - DLL (Pt. 2)

su_penguin10-Mar-09 6:33

su_penguin

10-Mar-09 6:33

Cool! I've removed the dollar signs.

Thank You!

WS_EX_CONTROLPARENT and freeze

BadJerry10-Mar-09 5:34

BadJerry

10-Mar-09 5:34

Hello all,

I have a derived CWnd control which I use as a container. I want the user to tab between child controls therefore I am setting the WS_EX_CONTROLPARENT. If I do that set, the application freezes as soon as the application loses focus... any idea why?

Thanks in advance!

Jerry

Re: WS_EX_CONTROLPARENT and freeze

BadJerry10-Mar-09 5:44

BadJerry

10-Mar-09 5:44

Found it!

For future reference: http://support.microsoft.com/kb/149501[^]

Configuration properites of IIS.

mmayur10-Mar-09 4:32

mmayur

10-Mar-09 4:32

Hi,

Any API's in C++ or VC++ that will help me to fetch the configuration properties of the IIS. I'm looking for fetching the Root path and the Virtual directory path information.

Regards,

Mayur M

Re: Configuration properites of IIS.

led mike10-Mar-09 4:42

led mike

10-Mar-09 4:42

mayur8u wrote:
the configuration properties of the IIS

"the IIS"? Really? There's only one installation of IIS in the entire universe? I'm pretty sure I have more than one right here in my own office, let me check... yes indeed I have two right here. Well given that reality I suppose we need some slightly more specific information from you in order to help. For the moment we will pretend that you not already realizing this, is a sign that you are attempting something beyond your current knowledge base. But hey, that never stops any of the hundreds of others we see copy/pasting their way around the internet.

Re: Configuration properites of IIS.

Iain Clarke, Warrior Programmer10-Mar-09 5:49

Iain Clarke, Warrior Programmer

10-Mar-09 5:49

Having a rough day, Mike?

Rose | [Rose]

and / or

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Re: Configuration properites of IIS.

led mike10-Mar-09 7:18

led mike

10-Mar-09 7:18

Hey a rose beer, I never had one yet! Big Grin | :-D

I'll have to get me one[^] now. Wink | ;)

Problem with CString

Abhijit Jana10-Mar-09 4:15

Abhijit Jana

10-Mar-09 4:15

Hi Guys,
I need some helps,

I have a variable ver of Cstring Type
CString ver;
how would I print this ? and I want to compare it with a string with wchar_t*, its some think like
wchar_t* ver2;
can any body please suggest me how to do this. May be this is a silly question but I don't have much idea on CPP. Frown | :(

cheers,
Abhijit
CodeProject MVP

Re: Problem with CString

David Crow10-Mar-09 4:20

David Crow

10-Mar-09 4:20

Abhijit Jana wrote:
I have a variable ver of Cstring Type
CString ver;
how would I print this ?

cout << ver;

Abhijit Jana wrote:
and I want to compare it with a string with wchar_t*, its some think like
wchar_t* ver2;

Have you tried:

if (ver == ver2)
    ...

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: Problem with CString

Abhijit Jana10-Mar-09 5:55

Abhijit Jana

10-Mar-09 5:55

David, Thanks for response. I found the problem. This C++ Exe is used to call my .net web service from client machine. So it was quite difficult to debug. But finally I have found the problem, it was with some return value. and solved . Wink | ;)

Again thanks.

cheers,
Abhijit
CodeProject MVP

Re: Problem with CString

safemj11-Mar-09 0:15

safemj

11-Mar-09 0:15

CString defined lots of constructors such as CString(LPCWSTR lpsz) & CString(LPCWSTR lpch, int nLength);

CString ver;
wchar_t* ver2;
...
CString ver3(ver2);
if(ver==ver3){
...
}else{
...
}

Custom listcontrol

toolsrnd10-Mar-09 4:14

toolsrnd

10-Mar-09 4:14

May i know how can i create a custom list control........

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