About Canvases
A canvas is a surface--inside a window container--on
which you place the interface items and boilerplate objects that end users
interact with when they run the form. By default, any canvas you create at
runtime is assigned to the window named WINDOW1. To explicitly associate a
canvas to a specific window, set the canvas' Window property accordingly. While
you can create and delete canvases in the Object Navigator, you will use the
Layout Editor to accomplish most of your canvas-related tasks.
Editing Canvases
In the Layout Editor, you edit one canvas at a time. By
default, the canvas itself is an object that can be selected and formatted. You
can hide the canvas object by toggling the View | Show Canvas menu option. Many
canvas properties can be set graphically in the Layout Editor, as well as in
the Property Palette. Note: You cannot clear, cut, copy, export, or duplicate
the canvas or view objects in the Layout Editor.
