1. Which class can represent a (fast) double buffer?<br>
2. How do I draw to it?<br>
3. How do I draw it to the screen?<br>
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Any help will be appreciated. Thanks.

how do you draw to the screen?<br>
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assuming that...<br>
LPDIRECTDRAWSURFACE4 lpddsprimary = NULL;<br>
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you flip it like this:<br>
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lpddsprimary->Flip(NULL, DDFLIP_WAIT);<br>
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how do you draw to the 2x buffer? depends on what you wanna draw. lines? pixels? bitmaps?<br>
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just e-mail me: halfnihilanth@hotmail.com<br>
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: 1. Which class can represent a (fast) double buffer?<br>
: 2. How do I draw to it?<br>
: 3. How do I draw it to the screen?<br>
: <br>
: Any help will be appreciated. Thanks.<br>
: <br>
<br>

: how do you draw to the screen?
:
: assuming that...
: LPDIRECTDRAWSURFACE4 lpddsprimary = NULL;
:
: you flip it like this:
:
: lpddsprimary->Flip(NULL, DDFLIP_WAIT);
:
: how do you draw to the 2x buffer? depends on what you wanna draw. lines? pixels? bitmaps?
:
: just e-mail me: halfnihilanth@hotmail.com
:
:
:
:
:
:
: : 1. Which class can represent a (fast) double buffer?
: : 2. How do I draw to it?
: : 3. How do I draw it to the screen?
: :
: : Any help will be appreciated. Thanks.
: :
There is more stuff you have to do to initiate the direct draw primary buffer. First off you also need to create a secondary buffer:
LPDIRECTDRAWSURFACE4 lpddsprimary=NULL;
LPDIRECTDRAWSURFACE4 lpddssecond=NULL;

ZeroMemory(&ddsd,sizeof(ddsd));
ddsd.dwSize = sizeof( ddsd );
ddsd.dwBackBufferCount = 1;//tells how many back buffers there //are
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
lpDD->CreateSurface( &ddsd, &lpDDSPrimary, NULL );
//back buffer
ddscaps.dwCaps=DDSCAPS_BACKBUFFER;
lpddsprimary->GetAttachedSurface(&ddscaps,&lpddssecond);

any questions please post your question