Splash Screen

This is a discussion on Splash Screen within the Windows Programming forums, part of the Platform Specific Boards category; My program is getting rather large and it it has to itialize alot in WM_CREATE(it includes a database it has ...

  1. #1
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    Splash Screen

    My program is getting rather large and it it has to itialize alot in WM_CREATE(it includes a database it has to get info from and different fonts to make). I want to create a splash screen to show while my program is loading. I already have the bitmap created but can't figure out how to acturally incorporate it into my program. Do I need to just basically double up WINMAIN and put in two showwindow commands? SHould I create a child window the very beginning of WM_CREATE? Won't that mean the the main window will be displayed in the background of the splash?

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    No, it's much simpler than that. You can draw right on the destop window.
    Code:
    HDC DesktopDC = GetDC(0); // get the dc of the destop window
    // use DesktopDC just like it was the dc to your own window
    Don't quote me on that... ...seriously

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    I would put that in WinMain right before CreateWindow correct?

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    Well, if the time is being taken up during WM_CREATE then I would put it at the start of WM_CREATE.
    Don't quote me on that... ...seriously

  5. #5
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    vrek, I would recommend against Brad0407's suggestion (Sorry brad, its not personal). The reason is, programs normaly load while the splash screen is up, and that could take a while on slow computers, in which case, the desktop its self is going to be drawing over your stuff! Even if you constantly draw, there will be an annoying flickering.

    I would say create another window, it really isn't that hard, then simply close the window when its done with its timer loop and loading.

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    Using the normal method of displaying bitmaps I need the size of the window I am copying to but I only want the image centered in the the middle of the screen. How can I do this?

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    vrek, I have to bring you down to earth on Queatrix's suggestion. You see, most splash screen tend to be poorly designed from a graphics stand point as Queatrix pointed out about mine. It can easily be drawn over and you'd never see it again. It's possible to make it update. One way is to redraw it constantly and as Queatrix said, it would cause an annoying flicker. Creating another window in essence does nothing more than my suggestion. It will draw on the screen. I'm assuming that you declared WS_POPUP. Then the second a window is moved over it, your beautiful background will go bye bye and you'll probably an unupdated window. Why? The window never handles it's WM_PAINT message because it's busy loading your fun things. How do you get around it? My vote is multithreading. Make a separate thread to handle the temporary window's messages. But the point is that if you want your splash screen to not get drawn over, neither of our previous ideas will work as they are.

    [edit]GetClientRect or GetWindowRect using 0 as your HWND[/edit]
    Don't quote me on that... ...seriously

  8. #8
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    I ended up taking the easy way out and using this: Splash Screen Class
    It does everything I wanted and worked perfectly out of the box.

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