Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!bloom-beacon!eru!luth!sunic!tut!hydra!hylka!teittinen
From: TEITTINEN@cc.helsinki.fi (Marko)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Turbo C graphics
Message-ID: <1315@cc.helsinki.fi>
Date: 7 Nov 89 13:58:06 GMT
References: <452@qmfl.jrdc.go.jp>
Lines: 14

In article <452@qmfl.jrdc.go.jp>, spee@qmfl.jrdc.go.jp (Paul SPEE) writes:
> A friend of mine wants to know whether it is possible to draw
> lines xor'ed with the screen in Turbo C.

If I recall right I think there is a function named setwritemode() that
is used to set graphics in xor/copy(normal) mode. To draw lines with
xor-operation use setwritemode(XOR_PUT) and to restore original drawing
mode use setwritemode(COPY_PUT). I'm not quite sure about this so look
it up from the manual.

-- 
E-Mail: teittinen@finuh.bitnet               ! "Studying is the only way
        teittinen@cc.helsinki.fi             !  to do nothing without
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