---
name: "fltk-options"
section: "1"
platform: "linux"
package: "fltk"
version: "1.4.5-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/fltk-options"
---

# fltk-options(1)

application to get and modify FLTK runtime options.

## NAME

fltk-options - application to get and modify FLTK runtime options.

## SYNOPSIS

fltk-options \[ -S*option\[=value\]* \] \[ -U*option\[=value\]* \] \[ -L \] \[ -LS \] \[ -LU \] \[ -f \] \[ -v \] \[ --verbose \] \[ -h\[option\] \] \[ --help \[option\] \]

## DESCRIPTION

*fltk-options* is a tool that allows you to access and change settings related to the user interface in applications built with FLTK. These settings will be applied when the program is launched. They can be set at the system level or by the individual user. User settings take precedence over system settings.

The following command line arguments are supported:

- \-S*option\[=value\]*

  Change or print system wide option.

- \-U*option\[=value\]*

  Change or print user option. Values can be "0" or "OFF" to clear, or "1" or "ON" to set the option. The value "-1" or "DEFAULT" sets the option to its default value. If no value is given, the current setting is returned as "-1", "0", or "1".

- \-L

  List the value of all options.

- \-LS

  List the value of all system options.

- \-LU

  List the value of all user options.

- \-f

  Suppress error messages concerning file access permissions.

- \-v, --verbose

  Print additional information in command line mode.

- \-h\[option\], --help \[option\]

  Prints a help page. If an option is give, print detailed information for that option.

The following FLTK options are supported:

- OPTION\_VISIBLE\_FOCUS

  Draw a dotted rectangle in widget with keyboard focus.

- OPTION\_ARROW\_FOCUS

  Arrow keys will move focus beyond text input field.

- OPTION\_SHOW\_TOOLTIPS

  Show or hide tooltips.

- OPTION\_DND\_TEXT

  User can drag text from FLTK into other apps.

- OPTION\_FNFC\_USES\_GTK

  Use GTK file chooser instead of FLTK if available.

- OPTION\_PRINTER\_USES\_GTK

  Use GTK printer dialog instead of FLTK if available.

- OPTION\_SHOW\_SCALING

  Show the zoom factor in a transient popup window.

Calling fltk-options without options will launch fltk-options interactive mode.

## SEE ALSO

[fluid(1)](/fluid/1.md), [fltk-config(1)](/fltk-config/1.md), [fltk(3)](/fltk/3.md)\
 FLTK Programming Manual\
 FLTK Web Site, https://www.fltk.org/

## AUTHORS

Bill Spitzak and others.