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| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version

## orientation

Arguments: standard-object

Returns the value of the orientation property of the argument. This property applies to `trackbar`, `up-down-control`, and `split-bar` controls that can be placed vertically or horizontally, and to a `printer`, indicating the orientation of the image on the paper. The possible values for trackbars, up-down-controls, and split-bars are `:horizontal` and `:vertical`.

This property is not setfable, excpt for `split-bar`s. For a printer stream, it must be specified as the value of the :orientation initarg to open-stream when creating a printer stream (or by letting the end user specify it on the print job dialog that is invoked by default at that time). For trackbars and up-down-controls, the value must instead be specified with the inspector when designing a control (using a form) or with the :orientation initarg of make-instance. (It can be changed using the inspector when designing a form but not for a running control, either in the IDE or in an application.)

When creating a `split-bar` programmatically and passing the orientation argument as `:vertical`, you will probably want to also pass the cursor-name argument as `:vertical-splitbar-cursor` (or the name of a custom cursor), since it will otherwise default to `:horizontal-splitbar-cursor`. (This is not an issue when creating a split-bar interactively on a form window.)

The possible values for a `printer` stream are `:portrait` and `:landscape`, where `:portrait` is taller than it is wide, and :landscape is wider than it is tall.

orientation is a property of the `up-down-control`, `trackbar`, `split-bar`, and `printer` classes.

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This page was not revised from the 10.0 page.
Created 2019.8.20.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version