VC, getting all open MDI child windows from CMainFrame

Rajesh Vijayakuma
#1 / 4

getting all open MDI child windows from CMainFrame

Hi,
I generated an MDI application using appwizard and then removed all the
document/view stuff and use my own CMDIChildWnd derived classes as the MDI
childs. Now, I would like to get a list of all MDI childs from the MDI
frame class (CMainFrame). Could someone tell me how this can be achieved?

--tia
Rajesh Vijayakumar

Sun, 25 Jun 2000 03:00:00 GMT

Dirk Djug
#2 / 4

getting all open MDI child windows from CMainFrame

Quote:

> Hi,
> I generated an MDI application using appwizard and then removed all the
> document/view stuff and use my own CMDIChildWnd derived classes as the
MDI
> childs. Now, I would like to get a list of all MDI childs from the MDI
> frame class (CMainFrame). Could someone tell me how this can be achieved?

> --tia
> Rajesh Vijayakumar

CWnd* pWnd=m_wndMDIClient.GetWindow(GW_CHILD);
while( NULL != pWnd )
{
if(pWnd->IsKindOf(RUNTIME_CLASS(CMDIChildWnd)))
//LOOK! There is one!
pWnd->GetWindow(GW_HWNDNEXT);

Quote:

}

cU
--

http://www.geocities.com/TimesSquare/1658/

Sun, 25 Jun 2000 03:00:00 GMT

Rajesh Vijayakuma
#3 / 4

getting all open MDI child windows from CMainFrame

hi,
thanks for the fast reply, but i have some more questions.
the member 'm_wndMDIClient' doesn't seem to be a member of CMDIFrameWnd or
it's parent CFrameWnd. If it is supposed to be added by me to CMainFrame,
how am i going to initialize it? (ie how to get the MDI client window from
the MDI frame window)

once again, thanks for helping.

--regards
Rajesh Vijayakumar

Quote:

>> Hi,
>> I generated an MDI application using appwizard and then removed all the
>> document/view stuff and use my own CMDIChildWnd derived classes as the
>MDI
>> childs. Now, I would like to get a list of all MDI childs from the MDI
>> frame class (CMainFrame). Could someone tell me how this can be achieved?

>> --tia
>> Rajesh Vijayakumar

>CWnd* pWnd=m_wndMDIClient.GetWindow(GW_CHILD);
>while( NULL != pWnd )
>{
> if(pWnd->IsKindOf(RUNTIME_CLASS(CMDIChildWnd)))
> //LOOK! There is one!
> pWnd->GetWindow(GW_HWNDNEXT);
>}

>cU
>--

> http://www.geocities.com/TimesSquare/1658/

Sun, 25 Jun 2000 03:00:00 GMT

Jim Ro
#4 / 4

getting all open MDI child windows from CMainFrame

Quote:

> I generated an MDI application using appwizard and then removed all the
> document/view stuff and use my own CMDIChildWnd derived classes as the MDI
> childs. Now, I would like to get a list of all MDI childs from the MDI
> frame class (CMainFrame). Could someone tell me how this can be achieved?

Try ::EnumChildWindows on the mdi client. Here's some code:

// example callback procedure for EnumChildWindows
BOOL CALLBACK MyEnumChildProc(HWND hwndChild, LPARAM lParam)
{
// hwndChild contains the handle of the window that is
// being enumerated.
CMyMDIChildWnd* pWnd =
(CMyMDIChildWnd*)CWnd::FromHandle(hwndChild);

CString sText;
pWnd->GetWindowText(sText);
// do stuff with the text
return TRUE;

Quote:

}

// example call to enum
// this one enums the MDI Child frames in your app
::EnumChildWindows(((CMDIFrameWnd*)AfxGetMainWnd()->m_hWndMDIClient,
MyEnumChildProc, 0L);

NOTE: The MDI client member in CMDIFrameWnd is named m_hWndMDIClient, not
m_wndMDIClient.

Jim [VC/MFC MVP]
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Mon, 26 Jun 2000 03:00:00 GMT