function::ansi_cursor_show - Linux
Overview
function::ansi_cursor_show
: Show cursor
The function::ansi_cursor_show
command is a POSIX-compliant function that displays the text cursor in an interactive terminal. Its primary purpose is to make the cursor visible, which is particularly useful in situations where the cursor is hidden or for debugging and interactive console applications.
Syntax
int ansi_cursor_show(void);
Options/Flags
None.
Examples
Simple Usage
#include <stdio.h>
#include <term.h>
...
putp(tigetstr("cursor_on"));
Complex Usage
#include <stdio.h>
#include <term.h>
...
char *cursor_seq = tigetstr("cursor_on");
if (cursor_seq) {
printf("%s", cursor_seq);
} else {
// Handle error or use alternative method to show cursor
}
Common Issues
Cursor Not Visible
Ensure the terminal supports cursor visibility and termcap
database is properly configured. Verify if the cursor_on
capability is available using tigetstr()
.
Cursor Jumps to Unexpected Position
Some terminals may have limited cursor control capabilities and the cursor may move to unexpected positions. In such cases, consider using alternative methods for cursor control.
Integration
For advanced tasks, function::ansi_cursor_show
can be combined with other terminal control commands like cursor_left()
, cursor_right()
to implement custom cursor movement or highlighting mechanisms.
Related Commands
ansi_cursor_hide
: Hide the text cursor.cursor_address
: Move the cursor to a specific position on the screen.tput
: A utility for querying and setting terminal capabilities, including cursor control.