MFC, Calling a function defined in the View Class

David John Evan
#1 / 5

Calling a function defined in the View Class

Hi,

I have written an SDI application and want to call a function (in the View)
immediately after the splash screen has been destroyed.

That is, in the splash code:

void CSplashWnd::HideSplashScreen()
{
CWnd* pMainWnd = AfxGetMainWnd();
DestroyWindow();
// I want to call a function in the View here.
pMainWnd->UpdateWindow();

Quote:

}

Does anybody know how to do this?

Thanks

DAVE

Tue, 01 Aug 2000 03:00:00 GMT

John Bundgaar
#2 / 5

Calling a function defined in the View Class

You could send a userdefined message to the mainwindow.

void CSplashWnd::HideSplashScreen()
{
....
AfxGetMainWnd()->SendMessage(WM_APP+1,0,0);
....

Quote:

}

//
// Now add a handler for the message in mainfrm.cpp/mainfrm.h
//

// Insert the following line just before DECLARE_MESSAGE_MAP() in the
// CMainFrame class.

LRESULT OnMyMessage(WPARAM wp, LPARAM lp);

// Add function body to mainfrm.cpp

LRESULT CMainFrame::OnMyMessage(WPARAM, LPARAM)
{
//
// Youy code goes here
//
return 0;

Quote:

}

David John Evans skrev i meddelelsen ...

Quote:

>Hi,

>I have written an SDI application and want to call a function (in the View)
>immediately after the splash screen has been destroyed.

>That is, in the splash code:

>void CSplashWnd::HideSplashScreen()
>{
> CWnd* pMainWnd = AfxGetMainWnd();
> DestroyWindow();
>// I want to call a function in the View here.
> pMainWnd->UpdateWindow();
>}

>Does anybody know how to do this?

>Thanks

>DAVE

Tue, 01 Aug 2000 03:00:00 GMT

John Bundgaar
#3 / 5

Calling a function defined in the View Class

Sorry the prev message was for calling a message in the main frame class --
now what you whanted. I'll try again.

void CSplashWnd::HideSplashScreen()
{
....
CWnd* pWnd = AfxGetMainWnd()->GetDescendantWindow(AFX_IDW_PANE_FIRST);
if(pWnd)
pWnd->SendMessage(WM_APP+1);
....

Quote:

}

// Insert the following line just before DECLARE_MESSAGE_MAP() in your
// views class definition.
LRESULT OnMyMessage(WPARAM wp, LPARAM lp);

// Add function your views .cpp file

LRESULT CMyView::OnMyMessage(WPARAM, LPARAM)
{
//
// Youy code goes here
//
return 0;

Quote:

}

David John Evans skrev i meddelelsen ...

Quote:

>Hi,

>I have written an SDI application and want to call a function (in the View)
>immediately after the splash screen has been destroyed.

>That is, in the splash code:

>void CSplashWnd::HideSplashScreen()
>{
> CWnd* pMainWnd = AfxGetMainWnd();
> DestroyWindow();
>// I want to call a function in the View here.
> pMainWnd->UpdateWindow();
>}

>Does anybody know how to do this?

>Thanks

>DAVE

Tue, 01 Aug 2000 03:00:00 GMT

John Bundgaar
#4 / 5

Calling a function defined in the View Class

YOU ALSO NEED TO DO THIS !!!!

// Insert this line in views .cpp file just before END_MESSAGE_MAP()

ON_MESSAGE(WM_APP+1, OnMyMessage)

// This works for me :-)

Quote:

>Sorry the prev message was for calling a message in the main frame class --
>now what you whanted. I'll try again.

>void CSplashWnd::HideSplashScreen()
>{
> ....
> CWnd* pWnd = AfxGetMainWnd()->GetDescendantWindow(AFX_IDW_PANE_FIRST);
> if(pWnd)
> pWnd->SendMessage(WM_APP+1);
> ....
>}

>// Insert the following line just before DECLARE_MESSAGE_MAP() in your
>// views class definition.
>LRESULT OnMyMessage(WPARAM wp, LPARAM lp);

>// Add function your views .cpp file

>LRESULT CMyView::OnMyMessage(WPARAM, LPARAM)
>{
> //
> // Youy code goes here
> //
> return 0;
>}

>David John Evans skrev i meddelelsen ...
>>Hi,

>>I have written an SDI application and want to call a function (in the
View)
>>immediately after the splash screen has been destroyed.

>>That is, in the splash code:

>>void CSplashWnd::HideSplashScreen()
>>{
>> CWnd* pMainWnd = AfxGetMainWnd();
>> DestroyWindow();
>>// I want to call a function in the View here.
>> pMainWnd->UpdateWindow();
>>}

>>Does anybody know how to do this?

>>Thanks

>>DAVE

Tue, 01 Aug 2000 03:00:00 GMT

Agen
#5 / 5

Calling a function defined in the View Class

And make sure you've got the view created. You can create it and hide it
until you need it if you have to.

--Agent

Sun, 06 Aug 2000 03:00:00 GMT