Please take a look. I think these screen shots are pretty self-explanatory. Also illustrative of what I am experiencing: black foreground with any background is washed out completely, all of the standard colors as background are muddy, and seem to worsen when a black foreground is used.
I am using Darwin on Mac OS X.I.I (new to both Unix and C++).
I downloaded the ncurses library from http://prdownloads.sourceforge.net/gnu-darwin/ncurses-5.2.tgz,
but I don't know what to do with it now. Stuffit has expanded the archive, but I still have the original .tgz as well (if that's... (1 Reply)
hello there,
i'm exploring the curses lib and i'm having some trouble with "defining a style". to clarify: i'm creating a menu driven app and i've been thinking what's the best way to use menus: make global vars (not my favourite), creating a function which designs the menu and returns the... (2 Replies)
Hi,
Somebody has told me that NCurses can be used to test vi. But i was unable to figure out how. If anybody has done anything with NCurses please reply.
Also is there any othre way by which we can test vi automatically? (2 Replies)
hello all.
my first post here :)
i just want a little help.
i have a small app tha uses ncurses for gui, and for user input. I need this app to be executed on a sever side, and have access to it through telnet.
When i test it, i see that enter makes the hole gui move up, and some other... (0 Replies)
Hi,
I am new to this programming with ncurses. I want to work out few examples on this ncurses. I jus want to know whether this ncurses works with Ubuntu OS? I found tat ncurses doesn come with AIX OS, may be it could be installed as a SupportPac or something, not sure about it.
Can u please... (4 Replies)
Help with ncurses Hi,
I need some help with ncurses.I'm supposed to write a program in C to display date and time and also to input the username and password using C.I chose ncurses for my task and here I am.
Code:
#include <stdio.h>
#include <termios.h>
#include... (1 Reply)
I tried to complile a text-based messenger program but, while configuring, got a message saying that ncurses wasn't found. Though it appears to be there...
This is the program: http://sourceforge.net/project/showfiles.php?group_id=110124&package_id=119574&release_id=373164
I get the error... (5 Replies)
i have read in one of links, there its documented
but i am using following code
int main ()
{
char ch;
initscr();
printw("Enter a char :");
ch=getch();
printw("You Entered '%c' ",ch);
getch();
endwin();
return 0;
}
the code does... (2 Replies)
Hey, Im using a shared memory segment to share a WINDOW structure among 2 processes. Basically I'm building a multi-player snake game in which multiple prrocesses access the window.
The 'parent' process initializes the shared memory segment and puts the window in it. I can access and perform... (1 Reply)
Hi guys I'm a newbie.Got a school project:need to convert Linux Hunt game,which is in K&R C to C99.I got some problems over Ncurses files:new library it's very different from the old one.There are some variables that with gcc are considered undefined 'cause they are no more used in the new Ncurses... (2 Replies)
Discussion started by: fracche
2 Replies
LEARN ABOUT REDHAT
use_default_colors
default_colors(3X)default_colors(3X)NAME
use_default_colors, assume_default_colors - use terminal's default colors
SYNOPSIS
#include <curses.h>
int use_default_colors(void);
int assume_default_colors(int fg, int bg);
DESCRIPTION
The use_default_colors() and assume_default_colors() functions are extensions to the curses library. They are used with terminals that
support ISO 6429 color, or equivalent. These terminals allow the application to reset color to an unspecified default value (e.g., with
SGR 39 or SGR 49).
Applications that paint a colored background over the whole screen do not take advantage of SGR 39 and SGR 49. Some applications are
designed to work with the default background, using colors only for text. For example, there are several implementations of the ls program
which use colors to denote different file types or permissions. These "color ls" programs do not necessarily modify the background color,
typically using only the setaf terminfo capability to set the foreground color. Full-screen applications that use default colors can
achieve similar visual effects.
The first function, use_default_colors() tells the curses library to assign terminal default foreground/background colors to color number
-1. So init_pair(x,COLOR_RED,-1) will initialize pair x as red on default background and init_pair(x,-1,COLOR_BLUE) will initialize pair x
as default foreground on blue.
The other, assume_default_colors() is a refinement which tells which colors to paint for color pair 0. This function recognizes a special
color number -1, which denotes the default terminal color.
The following are equivalent:
use_default_colors();
assume_default_colors(-1,-1);
These are ncurses extensions. For other curses implementations, color number -1 does not mean anything, just as for ncurses before a suc-
cessful call of use_default_colors() or assume_default_colors().
Other curses implementations do not allow an application to modify color pair 0. They assume that the background is COLOR_BLACK, but do
not ensure that the color pair 0 is painted to match the assumption. If your application does not use either use_default_colors() or
assume_default_colors() ncurses will paint a white foreground (text) with black background for color pair 0.
RETURN VALUE
These functions return the integer ERR upon failure and OK on success. They will fail if either the terminal does not support the
orig_pair or orig_colors capability. If the initialize_pair capability is found, this causes an error as well.
NOTES
Associated with this extension, the init_pair(3X) function accepts negative arguments to specify default foreground or background colors.
PORTABILITY
These routines are specific to ncurses. They were not supported on Version 7, BSD or System V implementations. It is recommended that any
code depending on them be conditioned using NCURSES_VERSION.
SEE ALSO curs_color(3X), ded(1).
AUTHOR
Thomas Dickey (from an analysis of the requirements for color xterm for XFree86 3.1.2C, February 1996).
default_colors(3X)