OPTION

OPTION N

CREATES A SYSTEM OBJECT OPTION AND ALLOCATES IT NUMBER N AS REFERENCE

  • Type: Command
  • Parameter: 1
  • Group: System Objects Creation

ACTION

The command OPTION N creates a system object OPTION, and allocates it a number N. The number N will be used to designate the OPTION.

The created OPTION can then be used through the appropriated commands.

The OPTION is created at position (0,0) : that is TOP = 0 pixel and LEFT = 0 pixel, with dimensions WIDTH = 113 pixels and HEIGHT = 17 pixels.

An OPTION displays a choice. In a group of OPTIONs, only one of them is available.

An OPTION can generate the events : ON_CLICK, ON_KEY_UP, ON_KEY_DOWN.

Remark: by default, the OPTION is created on the FORM number 0, but another FORM can be used. For that, create a FORM by FORM N, and send it all the commands by COMMAND_TARGET_IS N before creating the OPTION.

SYNTAX: OPTION N

  • N = system object number (integer or real). Must be greater than 0 and less than or equal to the allowed maximum number of system objects.

USE

  • An OPTION is used with other Options to display a choice where only one of them is available.

ERROR

  • If number N is not a correct expression.
  • If number N exceeds the allowed maximum number of system objects.
  • If number N is less than or equal to 0.
  • If number N is already used for a system object number.

EXAMPLE

rem create an OPTION with default position and dimensions

option 1

rem display a text (its number is used as reference)

caption 1,"Female"

SEE ALSO

CAPTION

TOP

LEFT

WIDTH

HEIGHT

HINT

HINT_HIDE

FULL_SPACE

COLOR

ON_CLICK

ON_KEY_UP

ON_KEY_DOWN