Message-ID: <35FE2CA2.5E93@ns.sympatico.ca> From: Dave Nugent X-Mailer: Mozilla 3.01C-SYMPA (Win95; U) MIME-Version: 1.0 Newsgroups: comp.os.msdos.djgpp Subject: Help: Converting 24bit bitmap to seperate R,G,B files using Allegro? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 28 X-Trace: rehcE4r/a9jhOS1Ds2VeHdtWuph5s5GYdkoiXvw1sPHZry/az7YJFQeQMl/H/tvYAuO3BfGnBXAp!tppegP7yah8+D6+vXjU= X-Complaints-To: abuse AT mtt DOT net X-Abuse-Info: Please be sure to forward a copy of ALL headers X-Abuse-Info: Otherwise we will be unable to process your complaint properly Organization: Business Internet Date: Thu, 11 Feb 1999 22:47:04 GMT NNTP-Posting-Host: 142.177.41.167 NNTP-Posting-Date: Thu, 11 Feb 1999 18:47:04 ADT To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hello, can anyone tell me if this can be done in Allegro? Preface: I am trying to write a program that will send an image to a Magicard 300 (tri-sublimation) printer. It uses a film process with a Red, Green and Blue film. I captured the output from another program that goes to the printer and discovered that I need to send 3 bitmaps to this printer. 1 Red, 1 Green and 1 Blue. I want to be able to take a 24 bit color bitmap, and create 3 seperate files from it, 1 for Red, Green and Blue. The 3 images I saw going to the printer look almost identical except for shading. What I noticed is that the file going to the printer consists of 3 bitmaps in it, Each pixel is 1 byte (8bit color) (because size of bitmap Xsize x Ysize * (3 layers) = filesize. Is there a command in Allegro that will take my 24bit color file and convert it to 3 seperate files? One other thing I noticed in the capture is that there is NO palette information going to this printer??? Just the actual image info.. Is there a standard RGB palette? Or do I need to find out what this printer uses? Appreciate any info or suggestions. Thanks! Dave.