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-bars. 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 has had moderate revisions compared to the 8.1 page.
Created 2016.6.21.