classes in VC++

[Piotr Getka]

Hi

I have 3 classes:
- CMainFrame
- CPitApp
- CPitView

In class CPitApp i create object CMainFrame* pMainFrame = new
CMainFrame
and in class CMainFrame there is:
public:
int nIndex

And now the question

How can I refer in method OnPrint in class CPitView, that is
CPitView::OnPri nt,
to a value of variable nIndex from class CMainFrame??

Is there a way of doing this without creating an object of class
CMainFrame or do i have to create it, and if so how to create it that
it will contains the same data that have object pMainFrame from
CPitApp??

I'm using MF. CMainFrame contains toolbar:
protected: CStyleBar m_wndStyleBar;
and CStyleBar have:
public:
CComboBox m_comboBox;

I simply want to use value returned by
m_wndStyleBar.m _comboBox.GetCu rSel()
in method
void CPitView::OnPri nt(CDC* pDC, CPrintInfo* pInfo)

Thanks.

[lallous]

Re: classes in VC++

"Piotr Getka" <romeo_007@wp.p l> wrote in message
news:d8a4ea63.0 401202321.7b4e6 9fc@posting.goo gle.com...[color=blue]
> Hi
>
> I have 3 classes:
> - CMainFrame
> - CPitApp
> - CPitView
>
> In class CPitApp i create object CMainFrame* pMainFrame = new
> CMainFrame
> and in class CMainFrame there is:
> public:
> int nIndex
>
> And now the question
>
> How can I refer in method OnPrint in class CPitView, that is
> CPitView::OnPri nt,
> to a value of variable nIndex from class CMainFrame??
>
> Is there a way of doing this without creating an object of class
> CMainFrame or do i have to create it, and if so how to create it that
> it will contains the same data that have object pMainFrame from
> CPitApp??
>
> I'm using MF. CMainFrame contains toolbar:
> protected: CStyleBar m_wndStyleBar;
> and CStyleBar have:
> public:
> CComboBox m_comboBox;
>
> I simply want to use value returned by
> m_wndStyleBar.m _comboBox.GetCu rSel()
> in method
> void CPitView::OnPri nt(CDC* pDC, CPrintInfo* pInfo)
>
> Thanks.[/color]

Inappropriate newsgroup, try "microsoft.publ ic.vc.mfc"

--
Elias

[jeffc]

Re: classes in VC++


"Piotr Getka" <romeo_007@wp.p l> wrote in message
news:d8a4ea63.0 401202321.7b4e6 9fc@posting.goo gle.com...[color=blue]
> Hi
>
> I have 3 classes:
> - CMainFrame
> - CPitApp
> - CPitView
>
> In class CPitApp i create object CMainFrame* pMainFrame = new
> CMainFrame
> and in class CMainFrame there is:
> public:
> int nIndex
>
> And now the question
>
> How can I refer in method OnPrint in class CPitView, that is
> CPitView::OnPri nt,
> to a value of variable nIndex from class CMainFrame??
> Is there a way of doing this without creating an object of class
> CMainFrame or do i have to create it, and if so how to create it that
> it will contains the same data that have object pMainFrame from
> CPitApp??[/color]

I would not create it. CPitApp and CPitView have to have a way of
communicating with each other. Are they related in any way right now? Does
one inherit from the other? Does one include the other? If not, then you
need to give one of them a pointer to the other one, or you need to do it
from some main() or other function that has both of them in it. Then you
can add functions to them so that you can get pMainFrame from CPitApp and
pass it to CPitView.

[jeffc]

Re: classes in VC++


"lallous" <lallous@lgwm.o rg> wrote in message
news:bulfkj$j27 p3$1@ID-161723.news.uni-berlin.de...[color=blue]
>
> Inappropriate newsgroup, try "microsoft.publ ic.vc.mfc"[/color]

<bzzzzzt> Knee-jerk response, and wrong answer. The real question doesn't
have anything to do with MFC.

[Karl Heinz Buchegger]

Re: classes in VC++

jeffc wrote:[color=blue]
>
> "lallous" <lallous@lgwm.o rg> wrote in message
> news:bulfkj$j27 p3$1@ID-161723.news.uni-berlin.de...[color=green]
> >
> > Inappropriate newsgroup, try "microsoft.publ ic.vc.mfc"[/color]
>
> <bzzzzzt> Knee-jerk response, and wrong answer. The real question doesn't
> have anything to do with MFC.[/color]

If we are nitpicking then it has everything to do with MFC
(The name of the classes are a strong indication that the OP is
using MFC. If on the other hand he built the classes on his own,
he wouldn't have that problem) and how the object hierarchy of MFC
works. The only thing the OP is missing are the functions AfxGetApp()
and AfxGetMainWnd() which open up the door to what the OP wants to do.


--
Karl Heinz Buchegger
kbuchegg@gascad .at

[Piotr Getka]

Re: classes in VC++

"lallous" <lallous@lgwm.o rg> wrote in message news:<bulfkj$j2 7p3$1@ID-161723.news.uni-berlin.de>...[color=blue]
> "Piotr Getka" <romeo_007@wp.p l> wrote in message
> news:d8a4ea63.0 401202321.7b4e6 9fc@posting.goo gle.com...[color=green]
> > Hi
> >
> > I have 3 classes:
> > - CMainFrame
> > - CPitApp
> > - CPitView
> >
> > In class CPitApp i create object CMainFrame* pMainFrame = new
> > CMainFrame
> > and in class CMainFrame there is:
> > public:
> > int nIndex
> >
> > And now the question
> >
> > How can I refer in method OnPrint in class CPitView, that is
> > CPitView::OnPri nt,
> > to a value of variable nIndex from class CMainFrame??
> >
> > Is there a way of doing this without creating an object of class
> > CMainFrame or do i have to create it, and if so how to create it that
> > it will contains the same data that have object pMainFrame from
> > CPitApp??
> >
> > I'm using MF. CMainFrame contains toolbar:
> > protected: CStyleBar m_wndStyleBar;
> > and CStyleBar have:
> > public:
> > CComboBox m_comboBox;
> >
> > I simply want to use value returned by
> > m_wndStyleBar.m _comboBox.GetCu rSel()
> > in method
> > void CPitView::OnPri nt(CDC* pDC, CPrintInfo* pInfo)
> >
> > Thanks.[/color]
>
> Inappropriate newsgroup, try "microsoft.publ ic.vc.mfc"[/color]

Thanks. I'll try.

[jeffc]

Re: classes in VC++


"Karl Heinz Buchegger" <kbuchegg@gasca d.at> wrote in message
news:400EAAA1.5 4EEAD7A@gascad. at...[color=blue]
> jeffc wrote:[color=green]
> >
> > "lallous" <lallous@lgwm.o rg> wrote in message
> > news:bulfkj$j27 p3$1@ID-161723.news.uni-berlin.de...[color=darkred]
> > >
> > > Inappropriate newsgroup, try "microsoft.publ ic.vc.mfc"[/color]
> >
> > <bzzzzzt> Knee-jerk response, and wrong answer. The real question[/color][/color]
doesn't[color=blue][color=green]
> > have anything to do with MFC.[/color]
>
> If we are nitpicking then it has everything to do with MFC
> (The name of the classes are a strong indication that the OP is
> using MFC. If on the other hand he built the classes on his own,
> he wouldn't have that problem) and how the object hierarchy of MFC
> works.[/color]

Only superficially. You would need to know the hierarchy regardless of
whether those are MFC classes. The fact that they are MFC classes are
incidental. The problem would be exactly the same if I inserted my made up
class names in there. It doesn't matter if he's using third party software
or his own - a valid response might be that we need to see the rest of the
code, but his question is still an OO C++ question, not an MFC question.
It's unnecessarily off-putting when people read little more than the subject
line and immediately decide to play net-nanny.