Click or drag to resize
Pdftools logo

OptionalContentMembership Properties

The OptionalContentMembership type exposes the following members.

Properties
 NameDescription
Public propertyExpression

The content element visibility function.

Optional content membership expression defines the visibility as a boolean function of OCG indices in C syntax. The OCG index represents the position of the element in the OCG list which can be retreived by using OptionalContentGroups. Example: "1 || 2" means that the content element is visible if either OCG 1 or OCG 2 is ON.

Alternatively, the evaluated expression can be fetched via IsVisible.

Public propertyIsVisible

The element visibility.

if the element is visible in the default configuration or OptionalContentGroups is empty. , otherwise.
Top
See Also