OpenEuphoria

Re: Win32 page flipping

• Posted by jordah at btopenworld.com Jan 14, 2003
• 453 views

Hi Unknown,
     Send him the examples, they helped me a lot. Btw, Thanx alot for the
API tutorials/lessons u gave me.

Jordah
----- Original Message -----
From: <cgibin at bellsouth.net>
To: "EUforum" <EUforum at topica.com>
Subject: Re: Win32 page flipping


>
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> - ----- Original Message -----
> From: <Patrick.Barnes at transgrid.com.au>
> Sent: Monday, January 13, 2003 10:00 PM
> Subject: Win32 page flipping
>
>
> > I have several pages of graphics and text (wPuts'ed) that I wish to
switch between without flickering.
> > How do I draw graphics and text into a bitmap, so that I can blit it on
to the screen in one go?
>
> Hello,
>
> Several options to choose from here.
>
> 1) use CS_OWNDC when you create your MainWindow
>      or
> 2) Create a/or more CompatibleDC's (memory device context)
>
> [example]
>
> global function CreateCompatibleDC(atom hdc)
>    return c_func(xCreateCompatibleDC, {hdc})
> end function
>
> hdc = GetDC(hwnd)
> memdc = CreateCompatibleDC(hdc) -- make sure we destroy this when we exit
the prog
>
> if iMsg = WM_PAINT then -- BitBlt the memdc to the hdc
>    BitBlt(hdc, 0, 0,601,455,memdc,0,0,SRCCOPY)
>
> Its alittle more complex than this simple message so I would suggest
downloading
> some of euman's examples or if you prefer to use win32lib I could send you
an
> pretty neat graphical demo that got Jordah started.
>
> Regards,
> [not really] Unknown
>
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