flash a screen

[mr_empty]

hi all,
i want to flash a screen with picture for few mins in mfc program, is there any method can do that? thanks!!

[Elysia]

What does "flash a screen" mean? Pop up a typical splash window or something?

[Yarin]

I think so.

So just set a timer in the flash window after creating it for how ever long you want it up, then make the timer message kill the window.

[Magos]

You writing adware?

[mr_empty]

thanks for reply, actually i'm writing mfc smart device that i want to have a splash screen before the application start, but i found that traditional mfc splash screen code which just splash bitmap can't work on smart device, so i think using dialogue to set timer is right, but i dun know how to use timer on this issue, can any body help me? thanks!!

[matsp]

Use mfc's CWnd::SetTimer() and use OnTimer to "catch" the timer - at that point, close the window and kill the timer (CWnd::KillTimer()). Make sure you pick a unique timer ID, in case there are other timers running in the system.

--
Mats

[mr_empty]

Use mfc's CWnd::SetTimer() and use OnTimer to "catch" the timer - at that point, close the window and kill the timer (CWnd::KillTimer()). Make sure you pick a unique timer ID, in case there are other timers running in the system.

--
Mats

yes thanks, but where should i place the settimer and killtimer in the class? i 'd tried to put the functions call in the oninitdialog but it does not work as expected...can anyone tell me where should i put them? thanks!!

[novacain]

Assuming you want modless splash dlg to allow app to continue and do not want to ownerdraw image.

I would try......

Add the splash image as a bitmap resource.
Open bitmap in resource editor
Set the ID.

Insert a new dialog into project.
Open dialog in resource editor
Remove the buttons from dialog and set style required (Border = none, application window = false, topmost = true).
Set the ID.
Add a Picture control over all of dialogs client area.
In Picture boxes properties set style (type = bitmap and Image = to your images ID)

Create a class derived from CDialog for your splash screen (ie CSplashDlg) using the new dialogs ID
Add handlers for OnTimer() [WM_TIMER] and OnInitDialog() [WM_INITDIALOG]
Add header to main app

Either call CSplashDlg as local or member (in main apps InitInstance() or as required)
[edit: I would call it from the main apps InitInstance().
Remove the calls to ShowWindow(SW_MAXIMIZE) and UpdateWindow()]

[This example is CSplashDlg killing itself, you could also have the main app kill CSplashDlg when required. The running CSplashDlg would have to be a member of the main app.]

CSplashDlg::OnInitDialog()
StartTimer()

CSplashDlg::OnTimer()
//kill this one
KillTimer() [best not to leave it hanging round]
DestroyWindow() (or EndDialog if used DoModal)
[edit:
//show main app
GetParent()->ShowWindow()
GetParent()->UpdateWindow()]

[Elysia]

It doesn't matter.
SetTimer will initiate a timer of n seconds. It will then either send a message or do a callback to a function of choice.
All you need to do is catch that message. MFC will call the OnTimer function when it receives such a message.