C / C++ / MFC

Re: Determining the type of a member variable

13-Dec-03 9:36

You could use dynamic_cast and if the returned pointer is not NULL, it was a good cast. Smile | :)

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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

"You won't like me when I'm angry..." - Dr. Bruce Banner

Please review the Legal Disclaimer in my bio.

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Ian Darling13-Dec-03 10:12

Ian Darling

13-Dec-03 10:12

Given that in this case all you want to do is swap the member, why not call swap on that? The nice part about this is that it requires at compile time that what you pass into swap_x_with_y has an x and y member variable. The realswap function will happily just swap over whatever you give it, providing they are the same type.

template<class T> swap_x_with_y(T &v)
{
  realswap(v.x, v.y);
}

template<class T> realswap(T &x, T&y)
{
 T t = x;
 x = y;
 y = t;
}

--
Ian Darling
"The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky

capture output

thes3cr3t113-Dec-03 8:53

thes3cr3t1

13-Dec-03 8:53

hello,im interested to know if there is a way to capture the output from a program like telnet or something and save it to a text file?
i see no reason why this isnt possible,so if any 1 has any info regarding this,id like to know...

thanks 4 ya time

chris Smile | :)

Re: capture output

BaldwinMartin13-Dec-03 9:05

13-Dec-03 9:05

You may use pipes.

at the prompt type

dir *.* > directory.txt

you may also send the output to 2 devices.

Make a file with all the commands you want to carry out in telnet seperated by a newline.
Don't forget to include q a the end.

then save the file as telnet.cmd or something you will remember.

at the command prompt enter

telnet < telnet.cmd > telnet.res

That will work just fine.

The other way is to echo to a file but that is noit good practice any more because window may not support the src device anymore.

Best Wishes and Happy Holiday's,
ez_way

Re: capture output

thes3cr3t113-Dec-03 9:29

thes3cr3t1

13-Dec-03 9:29

thank's this will work just fine;)

Registry Question ?

BaldwinMartin13-Dec-03 8:47

13-Dec-03 8:47

Hello
Has the registry changed at anytime from win 95 to win XP concerning the following keys?
HKEY_CURRENT_USER\Identities\{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx}\
HKEY_CURRENT_USER\Identities\{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx}\Software\Microsoft
HKEY_CURRENT_USER\Identities\{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx}\Software\Microsoft\Outlook
Express
HKEY_CURRENT_USER\Identities\{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx}\Software\Microsoft\Outlook

Thanks Marty

Best Wishes and Happy Holiday's,
ez_way

Re: Registry Question ?

BaldwinMartin13-Dec-03 14:40

Putting a view in a dialog box

13-Dec-03 14:40

Yes it work fine, I think you are on to a better way.

Best Wishes and Happy Holiday's,
ez_way

#realJSOP13-Dec-03 8:37

13-Dec-03 8:37

Well, I looked around, and everyone seems to think this is hard to do, but here's what I came up with:

BOOL CD3PlayRecsDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	CRect frameRect;
	GetDlgItem(IDC_STATIC_VIEWFRAME)->GetWindowRect(&frameRect);
	m_pView = new CDialogView(NULL);
	ScreenToClient(&frameRect);

	DWORD winStyle = WS_CHILD | WS_HSCROLL |  WS_VSCROLL |  WS_VISIBLE | WS_BORDER;
	m_pView->Create(NULL, NULL, winStyle, frameRect, this, AFX_IDW_PANE_FIRST+1, NULL);
	m_pView->SetScrollSizes(MM_TEXT, CSize(100,100));
	m_pView->MoveWindow(&frameRect, TRUE);

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

In the dialog tempate, I created a static frame to use as an anchor (where and how large I wanted the view window to be), and then created a CScrollView object and moved it into position. The tricky bit was getting it not to crash when the dialog box tried to display itself, but calling SetScrollSizes fixed that.

Am I missing something? Should this be hard to do than it appears to be?

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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

"You won't like me when I'm angry..." - Dr. Bruce Banner

Please review the Legal Disclaimer in my bio.

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BaldwinMartin13-Dec-03 9:17

13-Dec-03 9:17

Hi Jason

Try some ASSERTS
like

CHttpMyDlg* pDlg = ( CHttpMyDlg*) pParam;
ASSERT(pDlg);
ASSERT(pDlg->IsKindOf(RUNTIME_CLASS( CHttpMyDlg)));

Then take pDlg-> and set your rect and view.
When you get the error you may see your mistake. I looks good to me so I am just trying to give you another way to look at it.

Best Wishes and Happy Holiday's,
ez_way

#realJSOP13-Dec-03 9:32

13-Dec-03 9:32

I don't understand what you're trying to do/say.

This is a dialog-based app, and the code I posted is in the OnInitDialog() function of the main dialog.

It works, and even under debug, there are no memory leaks or anything...

Why would I care what kind of dialog it is?

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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

"You won't like me when I'm angry..." - Dr. Bruce Banner

Please review the Legal Disclaimer in my bio.

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BaldwinMartin13-Dec-03 9:36

13-Dec-03 9:36

Do you know?

Best Wishes and Happy Holiday's,
ez_way

#realJSOP13-Dec-03 9:57

13-Dec-03 9:57

Do I know what?

It's a CDialog with a CScrollView embedded in it.

It doesn't crash. It doesn't leak. I can update the view object (drawing in it) without any problems.

What's to know?

If you're gonna make a point, then make it, but don't draw this out. I don't have the time to banter back and forth with pointless discussion. If I screwed something up, then by all means tell me what I did wrong. The whole reason I even posted this is because it was easier to do than the impressions I was getting by reading the articles.

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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

"You won't like me when I'm angry..." - Dr. Bruce Banner

Please review the Legal Disclaimer in my bio.

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BaldwinMartin13-Dec-03 10:10

13-Dec-03 10:10

Ride Outlaw Programmer, Ride into the lonely night, ride cowboy ride.

Best Wishes and Happy Holiday's,
ez_way

BaldwinMartin13-Dec-03 10:22

13-Dec-03 10:22

What is the var is it CDialogView* m_pView; ?

Best Wishes and Happy Holiday's,
ez_way

#realJSOP13-Dec-03 10:44

13-Dec-03 10:44

class CDialogView : public CScrollView...

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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

"You won't like me when I'm angry..." - Dr. Bruce Banner

Please review the Legal Disclaimer in my bio.

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Michael Dunn13-Dec-03 11:06

Michael Dunn

13-Dec-03 11:06

It's only hard to do because it's not the recommended/documented way to use MFC. The designers intended a view to be inside either a frame window or a splitter window. If you can devise your own window code to properly contain a view, and it sounds like you have, then party on.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
"Just because the box has 2 gigabytes of memory doesn't mean you get to use it all!"
-- Rico Mariani, CLR perf guy

BaldwinMartin13-Dec-03 14:42

13-Dec-03 14:42

Yes it works fine, I think you are on to a better way.

Best Wishes and Happy Holiday's,
ez_way