Annoying problem displaying SDI MainFrame window with splash
Bryan Schilling -- brsclv@execpc.com
Sunday, November 24, 1996
Environment: VC++ 4.1, Win 95
I am experiencing an annoying problem when starting my application.
While my splash screen is still being displayed, I can see the title bar
and frame of the MainFrame window. I don't want to see this until after
the splash screen disappears, at which time the entire MainFrame window
should display.
Background info:
-- I am not displaying the splash screen in the manner implemented by
the splash screen component (i.e. waiting to display it until the
OnCreate of the MainFrame class and killing it when a timer goes off).
Instead, I display the splash screen at the beginning of the
InitInstance for the application class and then killing it myself at the
end of the InitInstance.
-- I am resizing the MainFrame window (using MoveWindow) in the OnCreate
so that it displayed the same way that it appeared in the previous
execution.
What I have tried:
-- I have tried to set the style of the MainFrame window by changing the
structure in the PreCreate.. for the class. I tried using ~WS_VISIBLE,
WS_MINIMIZE, and even WS_ICONIC (all with no success) and then after the
splash screen is removed, "unhidding" or "restoring" the MainFrame
window with ShowWindow(SW_SHOW) or ShowWindow(SW_RESTORE). Using these
methods, I either get the same results or a tiny window displayed that
seems to be disabled and the application is locked.
-- I can get the desired results in an MDI application because the
MainFrame window is instanciated after and separately from the document
template class. This method accepts my style change of ~WS_VISIBLE and
keeps the main frame window hidden until I show it with
ShowWindow(SW_SHOW).
How can I get the MainFrame window to stay completely hidden with the
SDI document template class and then display it again only after I kill
the splash screen?
Duncan Edwards -- Duncan@wallingford-software.co.uk
Thursday, November 28, 1996
I'm forced to reply to you directly, as I can't remember how to post
things
to the MFC mailing list. Anyway - I have a similar problem with
my splash screen.
My app should always be maximized - but you should be able to apply this
in some form anyway.
In InitInstance of the app, it makes the main window and, shortly before
returning TRUE, it has these lines
pMainFrame->ShowWindow(m_nCmdShow);
pMainFrame->UpdateWindow();
Knock these out - and it won't appear.
Now make a quick change to the splash component:
void CSplashWnd::HideSplashScreen()
{
CWnd* pWnd = GetParent();
// Destroy the window, and update the mainframe.
if (NULL != pWnd)
{
pWnd->SendMessage(WM_SYSCOMMAND,SC_MAXIMIZE,0);
}
DestroyWindow();
AfxGetMainWnd()->UpdateWindow();
}
Change the method as above, and the destroyed splash screen should
maximize the mainframe for you.
Hope it works (it did for me) ... I don't *think* I've made any other
changes
to my app, which would be required - so this should be enough.
(If you've not fixed it by now anyway)
Duncan Edwards
Bryan Schilling -- brsclv@execpc.com
Monday, December 02, 1996
Bryan Schilling wrote:
>
> Environment: VC++ 4.1, Win 95
>
> I am experiencing an annoying problem when starting my application.
> While my splash screen is still being displayed, I can see the title bar
> and frame of the MainFrame window. I don't want to see this until after
> the splash screen disappears, at which time the entire MainFrame window
> should display.
>
> Background info:
>
> -- I am not displaying the splash screen in the manner implemented by
> the splash screen component (i.e. waiting to display it until the
> OnCreate of the MainFrame class and killing it when a timer goes off).
> Instead, I display the splash screen at the beginning of the
> InitInstance for the application class and then killing it myself at the
> end of the InitInstance.
>
> -- I am resizing the MainFrame window (using MoveWindow) in the OnCreate
> so that it displayed the same way that it appeared in the previous
> execution.
>
> What I have tried:
>
> -- I have tried to set the style of the MainFrame window by changing the
> structure in the PreCreate.. for the class. I tried using ~WS_VISIBLE,
> WS_MINIMIZE, and even WS_ICONIC (all with no success) and then after the
> splash screen is removed, "unhidding" or "restoring" the MainFrame
> window with ShowWindow(SW_SHOW) or ShowWindow(SW_RESTORE). Using these
> methods, I either get the same results or a tiny window displayed that
> seems to be disabled and the application is locked.
>
> -- I can get the desired results in an MDI application because the
> MainFrame window is instanciated after and separately from the document
> template class. This method accepts my style change of ~WS_VISIBLE and
> keeps the main frame window hidden until I show it with
> ShowWindow(SW_SHOW).
>
> How can I get the MainFrame window to stay completely hidden with the
> SDI document template class and then display it again only after I kill
> the splash screen?
*** comment to the moderator ***
I wanted to respond to the various possible solutions that I received
and comment on what worked and did not work. Please format this as you
see fit to post.
*** end of comment ***
Thanks to everyone who responded to this question. I was finally able
to rectify my particular problem with the solution provided by Brodie
Thiesfield (unfortunately, I no longer had his response to attach this
reply to).
The two proposed solutions of directing the mainframe window to be
hidden in either the PreCreateWindow or the OnCreate did not seem to
work in this situation.
Duncan Edwards made reference to lines in his applications InitIntance
of: pMainFrame->ShowWindow(m_nCmdShow);
pMainFrame->UpdateWindow();
He stated to move after the destruction of the splash screen in the
HideSplashScreen() function. I believe this would work for an MDI
application, however for my SDI app, these lines do not appear (I think
they are performed within the SDI doc/view template setup.
What did work was to set the variable m_nCmdShow equal to SW_HIDE before
the command line is parsed and processed (in InitInstance), and then use
the ShowWindow(SW_SHOW) immediately after destroying the splash screen
at the end of the InitInstance.
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