Chapter 4: Property Management 73
iTool Developer’s Guide Property Data Types
User Defined Property Types
The User Defined property type lets you create a custom interface that allow users of
your iTool to select data of types other than the predefined iTool property types.
Creating a user defined property type entails the following:
• Creating an EditUserDefProperty method for the iTool component (usually a
visualization or operation) that uses the user defined property. See
“IDLitComponent::EditUserDefProperty” (IDL Reference Guide) for details.
• Creating user interface code to allow users to select a value. In the initial
release of the iTool system, this means writing an IDL widget interface, but in
future releases other users interfaces may be available.
• Creating a user interface service to display the interface. See Chapter 13,
“Creating a User Interface Service” (iTool Developer’s Guide) for details.
8 THICKNESS Thickness properties contain an integer value between 1
and 10, corresponding to the thickness (in points) of the
line.
9 ENUMLIST Enumerated List properties contain an array of string
values defined when the property is registered. The
GetProperty method returns the zero-based index of the
selected item.
Type
Code
Type Description
Table 4-1: iTools Property Data Types (Continued)
