Newsgroups: comp.os.msdos.djgpp
From: manfred DOT heumann AT uni-bielefeld DOT de (Manni Heumann)
Subject: Re: Here's the code for getpixel problem
References: <63gN2.58$ix1 DOT 35635 AT newse3 DOT tampabay DOT rr DOT com>
X-Newsreader: News Xpress 2.01
Date: Sat, 03 Apr 1999 10:40:05 GMT
NNTP-Posting-Host: ppp36-66.hrz.uni-bielefeld.de
Message-ID: <3705e1fe.0@news.uni-bielefeld.de>
X-Trace: 3 Apr 1999 11:40:14 +0200, ppp36-66.hrz.uni-bielefeld.de
Lines: 29
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

In article <63gN2.58$ix1 DOT 35635 AT newse3 DOT tampabay DOT rr DOT com>, jayjohnson AT rocketmail DOT com (Jay Johnson) wrote:
>
>The program compiles and runs but it does not produce the 
>expected results.
>
>I expected to get a value of 6 from the getpixel call.
>Where have I gone wrong?
>
..
here!

>float temp;


>putpixel(buffer, 0, 0, 6);     /*put a pixel on 0,0 and color it 6(white)*/
>temp=getpixel(buffer, 0, 0);   /*read the 0,0 pixel and store in temp*/
>sprintf(textbuf, "getpixel:%d", temp); /*put the temp value into a string*/

You used a float where an int should have been used. Compile with warnings 
enabled (-Wall), and gcc will give you a warning when try to pass the float, 
while using a "%d" format.



--
----------------------------------------------------------------------
Manni Heumann
Bielefeld, Germany
----------------------------------------------------------------------