Some of the action statements that can be used with textual regions are applicable to all objects. The list below describes each of these action statements and how it affects a textual region.
Statement |
How Statement Affects Textual Regions |
add |
Adds a new textual region. |
add to |
Adds new drawing statement(s) without clearing existing ones. |
add to class |
Adds a textual region to a class. |
change |
Adds new drawing statements and clears existing ones. |
change graphics |
Adds new drawing statements and clears existing ones. Although this statement is intended for use with graphical objects that have children, it can be used for a textual region as well. When used, it works exactly like the change statement since a textual region cannot have children. |
change position |
Changes position of a textual region's viewport. |
clear |
Deletes contents of a textual region, and moves the text cursor to column 1, line 1. |
clear graphics |
Deletes contents of a textual region. This statement, like the change graphics statement, is intended for use with graphical objects that have children, but can be used for a textual region as well. When used, it works exactly like the clear statement since a textual region cannot have children. |
delete |
Deletes textual region. |
delete from class |
Removes a textual region from a class. |
In addition to the statements listed above, there are many action statements unique to textual regions. These statements, which are described below, allow you to write a textual region to a file, read a file into a textual region, emphasize text, control the visibility of the text cursor, and otherwise manipulate text. If you specify one of these statements for a graphical object, the action statement is not executed and an error message is produced.
