Re: Passing a string between dialogs

From:
"Tom Serface" <tom.nospam@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 28 Mar 2008 15:53:45 -0700
Message-ID:
<8B97A11D-CE2B-4418-B558-BA03397BBE02@microsoft.com>
Hi Kahlua,

Doesn't matter what you pass in if you are using a pointer. If you already
have the data in another form you can certainly pass that in using a
pointer. Just make sure the pointer in the dialog member variable is the
same. What do you plan to do with the data in the dialog. If you are going
to display it somehow you may need to convert it to text anyway.

Tom

"Kahlua" <kahlua@right.here> wrote in message
news:J8eHj.43$at6.28@trndny01...

Arent CStrings signed?
I need to pass a string of data values 00-FFh

"AliR (VC++ MVP)" <AliR@online.nospam> wrote in message
news:oEdHj.5448$qT6.5403@nlpi070.nbdc.sbc.com...

My I ask why you aren't using CString?

You can pass your unsigned char * as a paramter to the constructor, or
you can create a new method for your dialog that takes a char * and saves
it, and you can call it before the call to DoModal(). There are tons of
options. Thats for the forth part. As for the back part, unless the
dialog is going to change the actual pointer then you already have what
you need, you don't need to get anything back from the dialog. If it is
going to assign a different value to the pointer, then you may need a get
metod, that you call when DoModal returns. It all depends on what you
intend to do with it.

CMyDlg2::CMyDlg2(unsigned char *pText,CWnd *pParent)
: CDialog(CMyDlg2::IDD,pParent)
, m_pText(pText)
{
}

{
  CMyDialg Dlg2(pToChar,this);
  Dlg2.DoModal();
}

AliR.

"Kahlua" <kahlua@right.here> wrote in message
news:VvdHj.26$fq2.19@trndny03...

I have the routine to open the second dialog (MyDlg2)

void CMyDlg::OnButton()
{
 CMyDlg2 dlg;
 dlg.DoModal();
}

How do I pass an unsigned char string of 12 chars back an forth between
MyDlg and MyDlg2?

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