Window Orientation

The "Window Orientation" bidi attribute is unique among all other bidi attributes, as it defines a property of a WINDOW (rather than a property of the text being processed). The window orientation attribute is "packaged" in the bidi attribute word for convenience, since it is a very handy placeholder for bidi-oriented information.

The Window Orientation attribute covers several visual aspects of a window. These include:

• Layout

  In the Window Orientation context, layout refers to the positioning of objects within a window or dialog.

  A window with a LtR window orientation has its origin at the bottom left.

  A window with a RtL window orientation has its origin at the bottom right of the window instead of the bottom left, thus placement of objects (e.g. child windows, controls, vertical scrollbar, etc.) within the window will be in the symmetrically opposite position to those in a LtR window.

  Some examples of how this works:

  • RtL Buttons have their text positioned to the left of the 'button bitmap'.

  • RtL Horizontal scrollbars have their origin on the right.

  • Vertical scrollbars in listboxes, MLEs, etc. are placed on the left side of the window.

  • This concept is applied in the same way to other objects in the system.
  
  Justification

  In many cases the default justification of objects within a Right-To-Left object is on the right.

  In general, a window with RtL window orientation has Right-To-Left layout and its objects are right-justified.

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