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then I'm more newbie than I thought  :P
hehehehe
I've never seen "^" used as "System::Object^ sender"
Nevermind,
your tbMacAddress->Text is a string or a char[x]?
I had some problems with CString and char* in VC++ because of the "\0" at the end of the CStrings. I solved it considering the CString as a vector and taking every letter in a loop and putting it in the place of the char[20] that was needed. Afterwards I passed the &char[0] where the LPCSTR was asked for and it worked. Finally I found another way to do it and changed it but... sometimes silly things give the way to the correct answer.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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My question has nothing to do with managed code.
Basically, forget the code which is confusing you, and just think of this as the question:
If you have a c-string (ie a null terminated string) and you want to set the Text in a textbox to that value, how do you do it?
For example, when a button on the form is pushed, set the textbox to the c-string's value.
Patrick
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Hi,
to do that I associate a member variable (CString) to the CEditBox and when I push a button or happens whatever it shall happen, call UpdateData (FALSE);
On the other hand, as the CEdit is derived from CWnd. It should be possible to modify its text with SetWindowText( LPCTSTR lpszString ); but I'm not sure because I have never tried it, I do it as above (VC++ 6)
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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Code?
So if I tell you that you are given a variable:
myString[] = "0C34AZ"; // which is null terminated
what would be working code to put it in a textbox?
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Hi another time,
ok, I have the DoDataExchange in my Form, and a member variable associated to my CEdit.
DDX_Text(pDX, IDC_MYEDIT, m_szMemberString);
I initialize it to “” (empty) in the constructor.
And then, in some events/messages I put the name of another element I saved in the Document, in the example a click in a ListCtrl (report mode) where my elements are listed
void CMyFormView::OnClickCtrlList(NMHDR* pNMHDR, LRESULT* pResult)
{ POSITION pos = m_clcMyList.GetFirstSelectedItemPosition();
if (!pos)
{ m_nRowNum = -1;
m_cbButton1.EnableWindow (FALSE);
m_ szMemberString = "";
UpdateData (FALSE);
}
while (pos)
{ m_nRowNum = m_clcRuleList.GetNextSelectedItem(pos);
M_szMemberString = pDoc->GetElementNameOfColumn (m_nRowNum);
m_cbButton1.EnableWindow (TRUE);
UpdateData (FALSE);
}
Invalidate (); UpdateWindow ();
*pResult = 0;
return;
}
Another way (without member variables and the DoDataExchange) can be:
void CMyFormView::OnClickCtrlList(NMHDR* pNMHDR, LRESULT* pResult)
{ POSITION pos = m_clcMyList.GetFirstSelectedItemPosition();
CEdit* pEdit = (CEdit*)GetDlgItem (IDC_MYEDIT);
if (!pos)
{ m_nRowNum = -1;
m_cbButton1.EnableWindow (FALSE);
pEdit->SetWindowText ("");
}
while (pos)
{ m_nRowNum = m_clcRuleList.GetNextSelectedItem(pos);
pEdit->SetWindowText (pDoc->GetElementNameOfColumn (m_nRowNum));
m_cbButton1.EnableWindow (TRUE);
}
Invalidate (); UpdateWindow ();
*pResult = 0;
return;
}
The function I’m using is: CString CMyDoc::GetElementNameOfColumn (int nRow);
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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I just realised why I'm having the problem I'm having.
I started a straight C++ project, and added a CLR form! I really didn't want a managed form, as I want to stick with unmanaged C++. duh
So, basically, either I do this in C# ( or managed C++ ) or I have to learn how to do windows forms 
I think I'll stick to a console app to do this simple job and avoid the whole dang problem.
Windows programming is just to much of a pain to learn.
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Hehehehe,
This is the same my partner said. He try to piss me off with "look, in VB I can print with just 2 lines", because I'm having problems to personalize a PrintDialog, margins, Bitmaps...
Windows programming is not easy at all. But it is not imposible, just a question of time and being persistent.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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If you want to set text for a control Textbox(editbox) or button you can use of SetWindowText();
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Hi all,
I have created a dll file in VC++ 6 and use that dll file in VB.Net. But unfortunately, in VC++, I'm using some datatype that aren't supported in VB.Net. So i couldn't use that dll file.
Please show me what datatype i should use in VB.NET appropriate with following datatype in VC++ 6 :
BSTR -> what datatype in VB.NET i should use
LPCTSTR -> what datatype in VB.NET i should use
LPSTR -> what datatype in VB.NET i should use
unsigned int -> what datatype in VB.NET i should use
DWORD -> what datatype in VB.NET i should use
Please show me some guide. Any help will be welcome.
Best Regards
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BSTR->string
LPCTSTR->const string
LPSTR -> string
unsigned int->UInt32
DWORD -> long
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Hi
Cool guys of this messageboards suggested me to use RegNotifyChangeKeyValue() function in order to be informed/notified of registry modifications (what i'm looking at).
It works but it only notifies me that something changed but i can't find how to figure exactly WHAT changed ?
thanks 
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RegNotifyChangeKeyValue() will notify you of any changes that is made to the key that *you* pass the API as the first parameter, hKey.
Alexandre GRANVAUD wrote: It works but it only notifies me that something changed but i can't find how to figure exactly WHAT changed ?
Use RegQueryValueEx() to get the modified value of the registry key. You could compare it to the old value, and you'd know what's changed.
Shog on learning VB6: Ah, that would have been VB6. Kicked my ass anyway.
So easy to learn, just like falling down a flight of stairs...
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yes but i need to know which subkeys are created in a large tree
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Hi all,
I have a little problem with printing. The case is that my program has multiple views and I need to print different things depending of the view that is active in this moment. I have derived a Dialog from CPrintDialog to allow some parameters selection and to print different outputs according to these parameters. I have successfully called the new DialogBox and set the parameters to choose the output. My problem is that, as I have overridden the CNewPrintDialog::OnOk () to modify the things I need, when I click OK in my dialog and send the work to print… I have an error because the DeviceContext for the printer is not correctly saved in pInfo->m_pPD->m_pd.m_hDC. My question is… where can I find the implementation (not the definition) of the CPrintDialog to see its CPrintDialog::OnOk and copy what I need in my Dialog???
Or… How should I make it to successfully send the datas to be printed? I have tried to print with what Chris Maunder’s says in one of his articles (Printing without the Document/View framework) but it doesn’t solves my problem because I do use the framework 
Any help will be wellcome
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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Nelek wrote: an error because the DeviceContext for the printer is not correctly saved in pInfo->m_pPD->m_pd.m_hDC
Can you show how do you set m_hDC and see Print Bitmaps without Doc/View Framework[^] is helpfuls?
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Hi,
I have made:
BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
CMyDoc* pDoc = GetDocument ();
ASSERT_VALID (pDoc);
delete pInfo->m_pPD ;
pInfo->m_pPD = new CDlgPrinting(FALSE, PD_ALLPAGES | PD_USEDEVMODECOPIES | PD_NOPAGENUMS | PD_HIDEPRINTTOFILE | PD_NOSELECTION, this) ;
pInfo->m_pPD->m_pd.hInstance = AfxGetInstanceHandle();
pInfo->m_pPD->m_pd.lpPrintTemplateName = MAKEINTRESOURCE(IDD_PRINT_PRDLG);
pInfo->m_pPD->m_pd.Flags |= PD_ENABLEPRINTTEMPLATE;
pInfo->m_pPD->m_pd.nMinPage = 1;
pInfo->SetMaxPage (CalculateNumberOfPages ());
int nAnswer = pInfo->m_pPD->DoModal ();
if (nAnswer == IDCANCEL)
return FALSE;
CDC dc;
dc.Attach (pInfo->m_pPD->GetPrinterDC ());
pInfo->m_pPD->m_pd.m_hDC = dc.GetSafeHdc ();
if (m_byPrintParam)
AfxMessageBox ("Parameters modified");
else
MessageBox (NULL, "Error by taking parameters", "Error", MB_OK);
dc.Detach ();
return TRUE;
}
But I get an Assertion and he brings me to code
ASSERT (pInfo->m_pPD->m_pd.m_hDC != NULL);
EDIT
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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Did you check step by step whats return value of dc.Attach?
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Hi,
CDC dc;
dc.Attach (pInfo->m_pPD->GetPrinterDC ());
pInfo->m_pPD->m_pd.hDC = dc.GetSafeHdc ();
does nothing, the return is 0x000000. I think it is because I have overriden the CMyPrintDialog::OnOK () and then is not making the things it should. Because of that I asked at the beggining of the post, where can I find the implementation of the Windows-CPrintDialog?? I have searched in my VC++ folder but I have only found the definitions in one .h but there is no .cpp for it.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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If you like you can send your program for me,if I can find problem I send answer for you.
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Not problem I hope you write your program early if you have question you can ask it 
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Hey friends,
I m trying to read a file which in encoded with unicode encoding, i hav to extract some information from it to proceed with my job.
Is there any MFC to read it ?
So enybody can help me in doing it.
Thank You
Regards,
Pankaj Sachdeva
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Still using VC6 with MFC 4.2.
I have a dialog, built with the dialog editor. This dialog contains a tab control among others.
I would like to change the size of this tab control before it is initially displayed.
As all my questions it sounds harmless but is not (unless I made a really stupid mistake, what I reserve the right for  ).
First I tried PreCreateWindow. Not called. Then I thought maybe PreCreateWindow works only for non controls (frame windows, MDI windows and stuff) and tried to override the CTaCtrl::Create. Nada.
Then I thought maybe the CWnd::CreateEx is used, since the TabControl is a child window.
No success. I even tried sophisticated things like making a WM_INITIALUPDATE handler. But my functions get never called.
Until now I did not figure out where the tab control is created. On the one hand there is the dialog created from the resource but this really concerns only the dialog window itself. On the other hand in OnInit the WM_INITIALUPDATE is sent to the children. So they must have been created before.
So answers of both kinds are welcome:
*) How do I intercept
*) Where are controls initiated
Ofcourse links to articels are also welcome (you don't have to write a book size explanation youself). Maybe you know just the magic key words for the search .
Kind regards
Leo
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