Re: detect terminal window resizing

4 Mar 2004

      On Thu, Mar 04, 2004 at 05:40:23AM -0800, Doan Ngoc San wrote:
...
Hi,
Please, help me, how to detect when terminal window resizes ? My OS is REDHAT.
Thanks
- if you use the CRT unit: ReadKeyWord will return a virtual
   "function key" kbScreenSizeChanged after a resize

- otherwise: the kernel will signal your application with SIGWINCH,
  which you can detect if you install a signal handler,
  like this:

program WinCh (Input, Output);

uses GPC;

procedure MyHandler (Sig: Integer);
begin
  WriteLn ('Terminal was resized.')
end;

var
  Dummy: Boolean;

begin
  Dummy := InstallSignalHandler (SIGWINCH, MyHandler, True, False, Null, Null);
  { this is just a dummy loop, as an example: }
  while not EOF do ReadLn
end.

Emil Jerabek