I want to get the screen width and cursor positions.
When I used curses, all the screen content was cleared.
So Can I use curses to get the screen size without clearing anything in the window?
Or is there any other alternative???
I can use only C or C++. (0 Replies)
Hi to all!
I'm a teacher of maths and physics in an italian high school in Milan, Italy.
I need a simple program that read the position of mouse cursor in function of time and write the coordinates in a text file. The time resolution have to be something like 1/10 sec or better (I have to know... (2 Replies)
Hi All,
In VI editor, to know the line number at any instant we use ctrl+g
Similarly, to know the current coulmn number what shall we use??
If not direct key controls like ctrl+g, Is there any comands that could be executed in colon or ex mode of VI to know the current column position???... (1 Reply)
hi all,
am trying to modify a ksh script to group server names together depending on the cluster they sit in. currently the script does a
find . -name '*.pid'
to find all running servers and prints out their pids and names.
current output looks something like this :
serverA ... (1 Reply)
I need to get the cursor position, and put it inside a variable. Problem is, i don't have the tput command, or ncurses.
Apparently I was supposed to try the following:
echo -e '\E
But I don't get a value or anything. Please help. (3 Replies)
I have a slight problem controlling the cursor position in a Bash terminal window. I have a function ask a question and then wait for an answer which is either 'y' or 'n' or a carriage return. Whenever the user enters anything else it just erases the answer and waits for the next one. However, the... (23 Replies)
Discussion started by: Ralph
23 Replies
LEARN ABOUT CENTOS
sd_journal_get_cursor
SD_JOURNAL_GET_CURSOR(3) sd_journal_get_cursor SD_JOURNAL_GET_CURSOR(3)NAME
sd_journal_get_cursor, sd_journal_test_cursor - Get cursor string for or test cursor string against the current journal entry
SYNOPSIS
#include <systemd/sd-journal.h>
int sd_journal_get_cursor(sd_journal* j, char ** cursor);
int sd_journal_test_cursor(sd_journal* j, const char * cursor);
DESCRIPTION
sd_journal_get_cursor() returns a cursor string for the current journal entry. A cursor is a serialization of the current journal position
formatted as text. The string only contains printable characters and can be passed around in text form. The cursor identifies a journal
entry globally and in a stable way and may be used to later seek to it via sd_journal_seek_cursor(3). The cursor string should be
considered opaque and not be parsed by clients. Seeking to a cursor position without the specific entry being available locally will seek
to the next closest (in terms of time) available entry. The call takes two arguments: a journal context object and a pointer to a string
pointer where the cursor string will be placed. The string is allocated via libc malloc(3) and should be freed after use with free(3).
Note that sd_journal_get_cursor() will not work before sd_journal_next(3) (or related call) has been called at least once, in order to
position the read pointer at a valid entry.
sd_journal_test_cursor() may be used to check whether the current position in the journal matches the specified cursor. This is useful
since cursor strings do not uniquely identify an entry: the same entry might be referred to by multiple different cursor strings, and hence
string comparing cursors is not possible. Use this call to verify after an invocation of sd_journal_seek_cursor(3) whether the entry being
sought to was actually found in the journal or the next closest entry was used instead.
RETURN VALUE
sd_journal_get_cursor() returns 0 on success or a negative errno-style error code. sd_journal_test_cursor() returns positive if the
current entry matches the specified cursor, 0 if it does not match the specified cursor or a negative errno-style error code on failure.
NOTES
The sd_journal_get_cursor() and sd_journal_test_cursor() interfaces are available as a shared library, which can be compiled and linked to
with the libsystemd-journal pkg-config(1) file.
SEE ALSO systemd(1), sd-journal(3), sd_journal_open(3), sd_journal_seek_cursor(3)systemd 208SD_JOURNAL_GET_CURSOR(3)