From: "Pavlos" Newsgroups: comp.os.msdos.djgpp Subject: Re: Allegro: videomemory with bitmaps + sprites Date: Sat, 31 Jul 1999 20:35:46 +0300 Organization: An OTEnet S.A. customer Lines: 33 Message-ID: <7nvc51$igm$1@newssrv.otenet.gr> References: NNTP-Posting-Host: dram-a14.otenet.gr X-Trace: newssrv.otenet.gr 933442529 18966 195.167.113.237 (31 Jul 1999 17:35:29 GMT) X-Complaints-To: abuse AT otenet DOT gr NNTP-Posting-Date: 31 Jul 1999 17:35:29 GMT X-Newsreader: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Take a look at exflip.c in the examples directory. It's very small and well commented. If you have a version of Allegro that has the examples numbered (ex01, ex02, ex03 etc.) find the one that says: double buffering and page flipping Pavlos Amin Kharchi wrote in message ... >Hello! > >I want to use the fast videomemory with pageflipping for my game: > > BITMAP *bmp; > bmp = create_video_bitmap(640,480); > >If I draw a bitmap with draw_sprite(bmp, sprite, 0,0) in to the created >videospace, the sprite will be shown on the screen... But why??? I don't >have used the function show_video_bitmap(bmp)! > >How could this possible and how I must use this video_bitmap-functions >correctly? > >And I have a loop for the draw_sprite() and its flickering, with >show_video_bitmap() and vsync() it's not better. > >-- >Amin Kharchi >Wolfsburg, Germany > >