Re: newbie Question: Data exchange between Dialog and my own data structure
You could assign a pointer to your data in the dialog before starting it up
and then just send a message to it (from wherever the data changes) to
instruct it to update itself by drawing data from that object (sort of like
a document).
If you are using a doc/view paradigm you could keep your data in the
document and use UpdateAllViews() to update the data.
Tom
"asm23" <asmwarrior@gmail.com> wrote in message
news:fsf6jp$2f4$1@news.cn99.com...
HI, I'm designing a program which has many CDialog(as docking control bar)
and user data structures. I want to do some data exchange on those. For
example:
//==================================================================
class CConfigDlg : public CDialog
{
...
//many common control such as CEdit...
}
class CMyData{
...
//many data members...
}
//==================================================================
When I initialize the dialog, or some data hase changed in working
thread,I want to update UI in using UpdateData(false);
When I made some modification on the UI control and Press "APPLY", these
change could to applied to CMyData.
But my CMyData is not the member of CConfigDlg, Maybe, CMyData is a member
of CMainFrame or some other's.
So, What's the best method to exchange data between UI dialog and data
structures? I found one kind of method to do this--Adding pointers to each
other and add "friend" keyword.
//==================================================================
class CConfigDlg : public CDialog
{
...
//many common control such as CEdit...
CMyData * m_pData;
friend CMyData;
}
class CMyData{
...
//many data members...
CConfigDlg * m_pdlg;
friend CConfigDlg;
}
//==================================================================
Then, class can operation each other through "Pointers", Is this a good
method? or Someone can give me more suggestion? Which kind of books cover
these topics?
Thanks.
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