nodelay Subroutine

Purpose

Enables or disables block during read.

Library

Curses Library (libcurses.a)

Syntax

#include <curses.h>

int nodelay(WINDOW *win,
bool bf);

Description

The nodelay subroutine specifies whether Delay Mode or No Delay Mode is in effect for the screen associated with the specified window. If bf is TRUE, this screen is set to No Delay Mode. If bf is FALSE, this screen is set to Delay Mode. The initial state is FALSE.

Parameters

Return Values

Upon successful completion, the nodelay subroutine returns OK. Otherwise, it returns ERR.

Examples

1. To cause the wgetch subroutine to return an error message, if no input is ready in the user-defined window my_window, use:

   nodelay(my_window, TRUE);

2. To allow for a delay when retrieving a character in the user-defined window my_window, use:

   WINDOW *my_window;
   nodelay(my_window, FALSE);

Implementation Specifics

This subroutine is part of Base Operating System (BOS) Runtime.

Related Information

The halfdelay subroutine, wgetch subroutine.

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