C / C++ / MFC Discussion Boards

EastDragon29-Jul-03 21:27

29-Jul-03 21:27

Toni78 wrote:
In C++ "=" operator cannot be override

No offense, but where did you hear that?

Well,I got to know that "=" cannot be override in MSDN April 2003 CDs.
It's table says:
=, ., ?:, ->, new, is, sizeof, typeof These operators cannot be overloaded.

and the artical's title is "operator overloading, overloadable operators"

Please take a look!
I said vs.net 2003 can compile my code, but have link errors.

Let's roll!

Re: Why Link Error?

Bob Stanneveld30-Jul-03 3:15

Bob Stanneveld

30-Jul-03 3:15

const CString& operator =(
const CString& stringSrc );
const CString& operator =(
TCHAR ch );
const CString& operator =(
char ch );
const CString& operator = (
LPCWSTR lpsz );
const CString& operator =(
LPCSTR lpsz );
const CString& operator =(
const unsigned char* psz );

No operator= overloading you say? this was taken directly from the msdn online help...

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: Why Link Error?

Toni7830-Jul-03 14:51

Toni78

30-Jul-03 14:51

Bob Stanneveld wrote:
No operator= overloading you say? this was taken directly from the msdn online help...

Thank you! For a moment I started to believe that the C++ I learned a few years ago, is not the same anymore.

// Afterall, I realized that even my comment lines have bugs

When one cannot invent, one must at least improve (in bed).-My latest fortune cookie

Re: Why Link Error?

EastDragon30-Jul-03 15:06

EastDragon

30-Jul-03 15:06

Thank you very much for your correction.
I just got the wrong link of MSDN article,it's "C# Programmer's Reference" not C++.

Thanks again!
----------

Let's roll!

Re: Why Link Error?

Michael Dunn29-Jul-03 20:25

Michael Dunn

29-Jul-03 20:25

All of the template class's methods have to be in the header file

--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Latest art~!@#2rDFA#@(#*%$Rfa39f3fqwf--=
NO CARRIER

Re: Why Link Error?

EastDragon29-Jul-03 21:32

EastDragon

29-Jul-03 21:32

Thank you! That works. But how could I do if I do want my implement code saved into the .cpp file?
And
negative=true?number=-number:;
is error, do I have to change it to
if (negative)
number=-number;
I think there is a way to use "? :" instead of "if"

Thank you!

--Thomas Wang---
Let's roll!

Re: Why Link Error?

Michael Dunn30-Jul-03 7:41

Michael Dunn

30-Jul-03 7:41

Check out Why do I get a link error when compiling my templates?[^] in the Comeau templates FAQ.

--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Latest art~!@#2rDFA#@(#*%$Rfa39f3fqwf--=
NO CARRIER

Re: Why Link Error?

EastDragon30-Jul-03 14:47

EastDragon

30-Jul-03 14:47

Thanks!
But does it mean that I have to ship out all my code to the template class user?
Is there any way to hide the implementation code?

Thank you!

Let's roll!

Re: Why Link Error?

John M. Drescher30-Jul-03 14:58

John M. Drescher

30-Jul-03 14:58

Eastdragon wrote:
But does it mean that I have to ship out all my code to the template class user?

Yes, you do if they are to use any of your templates. You can have templates in your cpp file no one uses the template outside of the .cpp file.

John

add text on a jpeg file

johnsmith29-Jul-03 16:04

johnsmith

29-Jul-03 16:04

hi guys
anyone knows how to add new text(string) on a jpeg file without using any image program?

Re: add text on a jpeg file

johnsmith30-Jul-03 19:36

johnsmith

30-Jul-03 19:36

nobody konws such thing??
i want to add some text in a jpg file in command prompt.
just like this
addtext2jpg jpgfilename textstring positionx positiony

any suggestion?
thanks

switch cpp and h in vc7 ide?

novachen29-Jul-03 14:18

novachen

29-Jul-03 14:18

Hi!
I have a lot of files to manange.
I once use a toolbar provided in codeproject to switch cpp and h in vc6.
Is there any method to do it in vc7?

IP address - getting programmatically

john john mackey29-Jul-03 12:41

john john mackey

29-Jul-03 12:41

hi. can anyone tell me how I can get the IP Address and Subnet Mask from within a program?

Basically, I want to get the same info that is returned when I do an "ipconfig" at the DOS prompt.

Much thanks!
Johnny

Re: IP address - getting programmatically

Mike Dimmick29-Jul-03 13:16

Mike Dimmick

29-Jul-03 13:16

GetAdaptersInfo, from the IP Helper API.

If you want IPv6 information (XP and above), look at GetAdaptersAddresses.

Re: IP address - getting programmatically

Anonymous24-Aug-03 19:22

Anonymous

24-Aug-03 19:22

Is there any API function in Unix plateform's C/C++ which can give IP Address of the machine?

Re: IP address - getting programmatically

Mike Dimmick25-Aug-03 22:24

Mike Dimmick

25-Aug-03 22:24

Quite possibly, but I don't know what. Sorry.

Custom Tab Control Woes...

adonisv29-Jul-03 12:30

adonisv

29-Jul-03 12:30

I keep getting a crash when I try to call the CTabCtrlSSL.. Cry | :((

 int CTabCtrlSSL::AddSSLPage (LPCTSTR pszTitle, int nPageID, LPCTSTR pszTemplateName) {<br />
	// Verify that the dialog template is compatible with CTabCtrlSSL<br />
	// (debug builds only). If your app asserts here, make sure the dialog<br />
	// resource you're adding to the view is a borderless child window and<br />
	// is not marked visible.<br />
#ifdef _DEBUG<br />
	if (pszTemplateName != NULL) {<br />
		BOOL bResult = CheckDialogTemplate  (pszTemplateName);<br />
<br />
		//The debugger points here -> ASSERT (bResult);<br />
<br />
	}<br />
#endif // _DEBUG

As a result of this code.. OMG | :OMG:

<br />
BOOL RDialogForEditingCanalObjects::OnInitDialog() <br />
{<br />
	CDialog::OnInitDialog();<br />
	<br />
	int nPageID = 0;<br />
	<br />
	this->m_ctrlEditingTabs.AddSSLPage (_T("Database"), nPageID++,IDC_OBJECT_EDITING_TAB_CTRL);<br />
	this->m_ctrlEditingTabs.AddSSLPage (_T("Runtime"), nPageID++, IDC_OBJECT_EDITING_TAB_CTRL);<br />
	this->m_ctrlEditingTabs.AddSSLPage (_T("Communcation"), nPageID++, IDC_OBJECT_EDITING_TAB_CTRL);<br />
<br />
	return TRUE;  // return TRUE unless you set the focus to a control<br />
	              // EXCEPTION: OCX Property Pages should return FALSE<br />
}

void CSacmanEditorView::OnEditPipedGate() <br />
{<br />
	RDialogForEditingCanalObjects dlg;<br />
	dlg.DoModal();<br />
}

Whazzzzaaaa??? Dead | X|

Re: Custom Tab Control Woes...

Dave Bryant29-Jul-03 13:33

Dave Bryant

29-Jul-03 13:33

Wrap your dialog IDs with MAKEINTRESOURCE().

e.g.
m_ctrlEditingTabs.AddSSLPage (_T("Database"), nPageID++,MAKEINTRESOURCE(IDC_OBJECT_EDITING_TAB_CTRL));

Dave
http://www.cloudsofheaven.org

Re: Custom Tab Control Woes...

adonisv29-Jul-03 17:08

adonisv

29-Jul-03 17:08

That didn't work. I'm still getting the same error! Frown | :(

Re: Custom Tab Control Woes...

Dave Bryant29-Jul-03 17:12

Dave Bryant

29-Jul-03 17:12

Well what is IDC_OBJECT_EDITING_TAB_CTRL? It looks like the method you are calling requires it to be a dialog resource, but generally IDC_ is the prefix for a control within a dialog - you should probably check this.

Dave
http://www.cloudsofheaven.org

Re: Custom Tab Control Woes...

adonisv29-Jul-03 17:50

adonisv

29-Jul-03 17:50

Ok, yeah, I didn't make extra dialogs to add to the initial dialog. But...now I can see my tab but there's no caption!! Mad | :mad:

NO TAB!

I keep throwing an error here... Confused | :confused:

int CTabCtrlSSL::AddPage (LPCTSTR pszTitle, int nPageID, TabDelete tabDelete) {<br />
	// Add a page to the tab control.<br />
		// Initialize the page.<br />
		if (OnInitPage (nIndex, nPageID)) {<br />
		THROW ERROR_>	// Make sure the first control in the dialog is the one that<br />
			// receives the input focus when the page is displayed.<br />
			HWND hwndFocus = tabDelete.pTabPage->GetTopWindow ()->m_hWnd;<br />
			nArrayIndex = m_hFocusWnd.Add (hwndFocus);<br />
			ASSERT (nIndex == nArrayIndex);<br />
		}<br />
		else {<br />
			// Make the control that currently has the input focus is the one<br />
			// that receives the input focus when the page is displayed.<br />
			m_hFocusWnd.Add (::GetFocus ());<br />
		}<br />
<br />
	}<br />
	return nIndex;<br />
}

Calling code...

BOOL RDialogForEditingCanalObjects::OnInitDialog() <br />
{<br />
	CDialog::OnInitDialog();<br />
	int nPageID = 0;<br />
<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Database"),nPageID++,IDD_DATABASE_TAB); <br />
<br />
	return TRUE;  // return TRUE unless you set the focus to a control<br />
	              // EXCEPTION: OCX Property Pages should return FALSE<br />
}

<-Clueless

This control is screwy and unstable!

adonisv30-Jul-03 9:34

adonisv

30-Jul-03 9:34

I run this code...and it works every time. WTF | :WTF:

BOOL RDialogForEditingCanalObjects::OnInitDialog() <br />
{<br />
	CDialog::OnInitDialog();<br />
	<br />
	int nPageID = 0;<br />
	<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Runtime"),nPageID++,IDD_RUNTIME_TAB); <br />
<br />
	return TRUE;  // return TRUE unless you set the focus to a control<br />
	              // EXCEPTION: OCX Property Pages should return FALSE<br />
}

So I add another page... and it works.

BOOL RDialogForEditingCanalObjects::OnInitDialog() <br />
{<br />
	CDialog::OnInitDialog();<br />
	<br />
	int nPageID = 0;<br />
	<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Runtime"),nPageID++,IDD_RUNTIME_TAB); <br />
<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Database"),nPageID++,IDD_EDIT_DATABASE_TAB); <br />
<br />
	return TRUE;  // return TRUE unless you set the focus to a control<br />
	              // EXCEPTION: OCX Property Pages should return FALSE<br />
}

I try to add antother page and it crashes. So I comment out the new page and the whole program crashes. Then I comment out that page and the first page loads every time but I can't put the second page back in, you know the one that just worked? OMG | :OMG:

BOOL RDialogForEditingCanalObjects::OnInitDialog() <br />
{<br />
	CDialog::OnInitDialog();<br />
	<br />
	int nPageID = 0;<br />
	<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Runtime"),nPageID++,IDD_RUNTIME_TAB); <br />
<br />
	 this->m_ctrlEditObjectTabs.AddSSLPage (_T("Database"),nPageID++,IDD_EDIT_DATABASE_TAB); <br />
<br />
	//this->m_ctrlEditObjectTabs.AddSSLPage (_T("Communications"),nPageID++,IDD_EDIT_COMMUNICATIONS_TAB); <br />
<br />
<br />
	return TRUE;  // return TRUE unless you set the focus to a control<br />
	              // EXCEPTION: OCX Property Pages should return FALSE<br />
}

This control is FIRED! Wink | ;)

Help with CExpire

Juan Carlos Cobas29-Jul-03 12:28

Juan Carlos Cobas

29-Jul-03 12:28

Hi,

I'm using CExpire[^]) by Nish, but I cannot make it to work from different user accounts, other than the administrator one.

Any idea?

Thanks,
Carlos

Re: Help with CExpire

pranavamhari29-Jul-03 18:04

pranavamhari

29-Jul-03 18:04

Even inexperienced crackers can unlock this.
Also, it is not a good method, adding junk to the registry. Forget it. Find a new method.

Hari Krishnan

Re: Help with CExpire

Toni7829-Jul-03 18:14

Toni78

29-Jul-03 18:14

pranavamhari wrote:
Also, it is not a good method, adding junk to the registry

Adding junk to the registry!? Confused | :confused:

What is considered not to be junk?

pranavamhari wrote:
Find a new method.

I agree with you (not entirely) but there are no bullet proof methods. Anything can be unlocked. The whole purpose of CExpire is to give you an idea on how to protect a program, and not to provide an extremly strong protection scheme. I would suggest a combination of different protection schemes.

// Afterall, I realized that even my comment lines have bugs

When one cannot invent, one must at least improve (in bed).-My latest fortune cookie

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.