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Top Forums Programming Resize current window with Curses Post 302392423 by Corona688 on Thursday 4th of February 2010 11:50:57 AM
Old 02-04-2010
Quote:
Originally Posted by pogdorica
---------- Post updated at 04:59 PM ---------- Previous update was at 04:26 PM ----------

[/COLOR]Oh !!! I just find this post:

terminal Width/height change

No, I really think you need to call resizeterm(). The ioctl only changes what size is reported, not what size the window is, so isn't very useful. How the terminal is actually resized from the user end is terminal-specific and nothing to do with the kernel, hence part of curses.

What value is resizeterm returning? It may not think your terminal's resizable. Curses also provides the function is_term_resized() to tell if curses thinks the terminal is even capable of resizing. What does 'env | grep TERM' show? If TERM is not xterm it probably won't try to resize it even if the terminal supports it.

---------- Post updated at 10:50 AM ---------- Previous update was at 10:09 AM ----------

(posted from PM with permission)
Quote:
Originally Posted by pogdorica
Hi Corona.

I'm grateful for your time and support. I'm from Madrid-Spain and I'm really sorry if my english isnīt very good. I hope you understand all my post.
Even if it's not as easy as Spanish for you, your english is quite good.
Quote:
Today, itīs the first time that i try to do something with 'curses' library and i would want to know what it is possible to do and not to do with this library. I am studying your link; sure it 's very good.
I really don't know curses. I'm just using google, reading documentation, and suggesting things I do by habit. It certainly seems possible to resize terminals with curses -- both PuTTY and curses support it.

Whenever a function doesn't work, first check its return value. Whether curses believes its succeeded or not will help you figure out what's gone wrong. curses might not even be trying to resize the terminal if it doesn't believe its resizable.

Another thing to check is the manual page, see 'man resizeterm'. That's where I found that resizeterm and resize_term are different functions -- you should be calling resizeterm -- and where I found the mention of is_term_resized.

You might also find Writing Programs with NCURSES useful.
 

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CURSES_CLEAR(3) 					   BSD Library Functions Manual 					   CURSES_CLEAR(3)

NAME
curses_clear, clear, wclear, clearok, clrtobot, clrtoeol, erase, werase, wclrtobot, wclrtoeol -- curses clear window routines LIBRARY
Curses Library (libcurses, -lcurses) SYNOPSIS
#include <curses.h> int clear(void); int clearok(WINDOW *win, bool flag); int clrtobot(void); int clrtoeol(void); int erase(void); int wclear(WINDOW *win); int werase(WINDOW *win); int wclrtobot(WINDOW *win); int wclrtoeol(WINDOW *win); DESCRIPTION
These functions clear all or part of stdscr or of the specified window. The clear() and erase() functions erase all characters on stdscr. wclear() and werase() perform the same function as clear() and erase(), respectively, excepting that the specified window is cleared. By setting flag to TRUE, the clearok() function is used to force the next call to wrefresh() to clear and completely redraw the window given in win. The function clrtobot() will clear stdscr from the current row to the bottom of the screen. clrtoeol() will clear stdscr from the current column position to the end of the line. wclrtobot() and wclrtoeol() are the same as clrtobot() and clrtoeol(), respectively, excepting the window specified is operated on instead of stdscr. RETURN VALUES
Functions returning pointers will return NULL if an error is detected. The functions that return an int will return one of the following values: OK The function completed successfully. ERR An error occurred in the function. SEE ALSO
curses_refresh(3) STANDARDS
The NetBSD Curses library complies with the X/Open Curses specification, part of the Single Unix Specification. HISTORY
The Curses package appeared in 4.0BSD. BSD
August 12, 2002 BSD
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