two dialogs, global variables? (vc++ 6.0 mfc) - C / C++ / MFC Discussion Boards

i have two dialogs, one main and one child. i'd like to get userinput in the childs editctrls and then pass them on to the main dialogs editctrls through global cstring variables.
how can these two dialogs share variables?

thanks

Re: two dialogs, global variables? (vc++ 6.0 mfc)

toxcct19-Feb-07 5:24

toxcct

19-Feb-07 5:24

guess what, i've just submitted a new article about that (around last thursday), but i'm still waiting for it to be published (editors have a lot of work)...

when it comes out, don't hesitate to check it (called Dialogs Communication - Or the art of exchanging data...).

for your input, transmit your infos thru the child dialog's constructor

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Re: two dialogs, global variables? (vc++ 6.0 mfc)

David Crow19-Feb-07 6:03

David Crow

19-Feb-07 6:03

rolfhorror wrote:
how can these two dialogs share variables?

Do they really need to? If so, they are inherently tied together from that point forward. That's not necessarily a bad thing, but it does keep the child dialog from being re-used.

Several solutions exist:

void CMainDialog::SomeAction()
{
    CChildDialog dlg(m_var1, m_var2);
    // or
    dlg.m_var1 = m_var1;
    dlg.m_var2 = m_var2;
    // or
    dlg.SetVar1(m_var1);
    dlg.SetVar2(m_var2);
     
    if (dlg.DoModal() == IDOK)
    {
        m_var1 = dlg.m_var1;
        m_var2 = dlg.m_var2;
        // or
        m_var1 = dlg.GetVar1();
        m_var2 = dlg.GetVar2();
    }
}

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Re: two dialogs, global variables? (vc++ 6.0 mfc)

Hamid_RT19-Feb-07 6:10

Hamid_RT

19-Feb-07 6:10

Is this helpfuls you can insert this code to child dialog after user insert his text on your editbox.

<br />
After insert text to editbox on the child dialog you can get this string and use of this code (if you dont need to global cstring)<br />

CMain *m_Main=(CMain*)GetParent();
m_Main->m_EditControl.SetWindowText();

WhiteSky

Re: two dialogs, global variables? (vc++ 6.0 mfc)

Maximilien19-Feb-07 6:13

Maximilien

19-Feb-07 6:13

one solution is to pass a pointer (this) of the parent dialog to the child dialog :

//...
  MyChildDialog dlg( this );
  dlg.DoModal();

But that would force a "coupling" dependance between both dialogs; maybe it's ok for your particular situation.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: two dialogs, global variables? (vc++ 6.0 mfc)

rolfhorror19-Feb-07 6:57

rolfhorror

19-Feb-07 6:57

thanks alot guys, i'll try your coding.

Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 5:00

bosfan

19-Feb-07 5:00

Hello,
i like to modify the dialog style to WS_CHILD, and need help to do this, reason for that is that i
want to place normal dialog on other dialog as child!

// in OnInitDialog() from the parent dialog:
BOOL CParentDlg::OnInitDialog()
{
   pReportDlg.Create(IDD_REPORT, pParentWnd);
// here i need help, pReportDlg is member of CParentDlg, and i want to place him on 
// CParentDlg as child object, but pReportDlg is shown as normal dialog:
// what params i have to remove from the dialog style:
   pReportDlg.ModifyStyleEx(WS_EX_OVERLAPPEDWINDOW | WS_EX_DLGMODALFRAME, WS_CHILD);
   pReportDlg.ShowWindow(SW_SHOW);
   pReportDlg.SetWindowPos(pComboFileName, 8, cRect.top, cRect.right, cRect.bottom, NULL);
}

thanks in advance
break;

Re: Help to modify dialog style using ModifyStyleEx()

Hamid_RT19-Feb-07 5:02

Hamid_RT

19-Feb-07 5:02

Now whats problem

WhiteSky

Re: Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 5:10

bosfan

19-Feb-07 5:10

Hello WhiteSky,
ähm, the dialog style stay the same, they dont change style from [popup with dialog frame] to child dialog style without frame, title bar etc.

Is there any thing what i forgot to use oder set?

thanks

Re: Help to modify dialog style using ModifyStyleEx()

Hamid_RT19-Feb-07 5:14

Hamid_RT

19-Feb-07 5:14

What happens if you use of ModifyStyle instead ModifyStyleEx

WhiteSky

Re: Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 5:18

bosfan

19-Feb-07 5:18

Nothing, no errors or something, style stay without changes, the same like i create him with the assistance!
Just normal dialog, not included to my parent dialog, but like his own dialog Smile | :)

Re: Help to modify dialog style using ModifyStyleEx()

Hamid_RT19-Feb-07 5:37

Hamid_RT

19-Feb-07 5:37

Whats return value of ModifyStyle?

WhiteSky

Re: Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 21:51

bosfan

19-Feb-07 21:51

Hi,
return 1!

Re: Help to modify dialog style using ModifyStyleEx()

Hamid_RT19-Feb-07 23:10

Hamid_RT

19-Feb-07 23:10

Return 1 this meaning that function is working

WhiteSky

Re: Help to modify dialog style using ModifyStyleEx()

prasad_som19-Feb-07 6:05

prasad_som

19-Feb-07 6:05

break; wrote:
pReportDlg.ModifyStyleEx(WS_EX_OVERLAPPEDWINDOW | WS_EX_DLGMODALFRAME, WS_CHILD);

Modify this to,

pReportDlg.ModifyStyleEx(WS_EX_OVERLAPPEDWINDOW | WS_EX_DLGMODALFRAME, WS_CHILD,SWP_FRAMECHANGED);

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 21:49

bosfan

19-Feb-07 21:49

Hello Prasad,
thanks for help, the dialog i now showed with new style, without border etc., also like a child
dialog, but they is showed outside of hims parent stay only to clip the dialog to them...

// CFileDialogReport is inherited from CFileDialog
BOOL CFileDialogReport::OnInitDialog()
{
	const UINT iExtraSize = 220;
	CWnd* pParentWnd = GetParent();
	RECT cRect;
	pParentWnd->GetWindowRect(&cRect);
	pParentWnd->SetWindowPos(NULL, 0,0,cRect.right - cRect.left, cRect.bottom - cRect.top + iExtraSize, SWP_NOMOVE);

	CWnd* pComboFileName = pParentWnd->GetDlgItem(cmb1);
	pComboFileName->GetWindowRect(&cRect);
	pParentWnd->ScreenToClient(&cRect);

	// Position for my new controls(for that child dialog)
	cRect.top += 20;
	cRect.bottom += 120;
	cRect.left += 50;
	cRect.right += 160;

	pReportDlg.Create(IDD_REPORT, pParentWnd);
	pReportDlg.ModifyStyle(WS_OVERLAPPEDWINDOW ,WS_CHILD , SWP_FRAMECHANGED);
	pReportDlg.ModifyStyleEx(WS_EX_OVERLAPPEDWINDOW | WS_EX_DLGMODALFRAME, 
		WS_CHILD ,SWP_FRAMECHANGED);

	pReportDlg.ShowWindow(SW_SHOW);
	pReportDlg.SetWindowPos(pComboFileName, 8, cRect.top, cRect.right, cRect.bottom, NULL);
}

ok, i can set settings in the template to child and without border, but i want to try everything
what is posible to do this to runtime, any idea how to do this now?

regards

Re: Help to modify dialog style using ModifyStyleEx()

bosfan19-Feb-07 22:15

bosfan

19-Feb-07 22:15

Hi,
I solve this now, i forgot to set the parent window ,
before i call ShowWindow(SW_SHOW);
i set the parent for my dialog:

pReportDlg.SetParent(pParentWnd);
pReportDlg.ShowWindow(SW_SHOW);
pReportDlg.SetWindowPos(pComboFileName, 8, cRect.top, cRect.right, cRect.bottom, NULL);

regards

Re: Help to modify dialog style using ModifyStyleEx()

prasad_som19-Feb-07 22:31

prasad_som

19-Feb-07 22:31

You can mention parent window, at the time of creation only.

Prasad
Notifier using ATL | Operator new[],delete[][^]

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