From:	"Robert B. Clark" <epynex AT 3pynexf DOT pbz>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Blinking characters
Organization:	ClarkWehyr Enterprises
Message-ID:	<9rh39vo18gagvepjamffi8kjidegm043h7@4ax.com>
References:	<b6s6u9$bhn$1 AT saphir DOT jouy DOT inra DOT fr>
X-Newsreader:	Forte Agent 1.9/32.560
MIME-Version:	1.0
Lines:	32
Date:	Mon, 07 Apr 2003 13:56:57 -0500
NNTP-Posting-Host:	209.43.107.80
X-Complaints-To:	news-abuse AT iquest DOT net
X-Trace:	news.iquest.net 1049741206 209.43.107.80 (Mon, 07 Apr 2003 13:46:46 EST)
NNTP-Posting-Date:	Mon, 07 Apr 2003 13:46:46 EST
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

On Mon, 7 Apr 2003 15:53:45 +0000 (UTC), wajnberg AT antibes DOT inra DOT fr (Eric
Wajnberg) wrote:

>However, I just can't make the printed text to blink. The help on-line on
>textattr() (in conio.h) is not really explicit..
>
>So my question is: once I have forground and background colors, how can I
>switch to blinking mode, and switching back to steady mode?

Set the high bit of textattr()'s parameter.

For example, to get blinking white on a black background, use

	#include <conio.h>

	textattr(WHITE + (BLACK << 4) + BLINK);

conio.h should have the defines for WHITE (15), BLACK (0) and BLINK (128).

The textattr() parameter is an eight-bit mask with the following structure:

	Bit	0-3:		4-bit foreground color (0-15)
		4-6:		3-bit background color (0-7)
		7:		blink-enable bit (1=blink)

Only the first eight colors (BLACK (0) through LIGHTGRAY (7)) may be used
for background colors.


-- 
Robert B. Clark (email ROT13'ed)
Visit ClarkWehyr Enterprises On-Line at http://www.3clarks.com/ClarkWehyr/

- Raw text -