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Dee

BIG BITMAP + SCROLLING

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Does anyone have a DDraw example of a huge bitmap with scrolling?? not those tile ones but really a huge pre rendered background thanx

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If you got your "huge" bitmap loaded on a surface lpMapSurface
screenresolution 800*600;

SetRect(&rcSrc,MapXpos,MapYpos,800+MapXpos,600+MapYpos);
SetRect(&rcDest,0,0,800,600);
DestinationSurface->Blt(&rcDest, lpMapSuface, &rcSrc, DBLT_WAIT,NULL);

The size of the bitmap will of course be limited by availible memory.
If you want really huge bitmap you''ll probably need to break the bitmap down in tiles which are loaded when needed. I think this is the way The Infinity Engine(Baldurs Gate) is doing it...

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