A viewport. An object usually used in a scroll pane. It represents the portion of the entire data that the user can see. As the user manipulates the scroll bars, the contents of the viewport can change. Also refer to ROLE_SCROLL_PANE.
- AT-SPI: ROLE_VIEWPORT
- ATK: ATK_ROLE_VIEWPORT
- UA: NSAccessibilityUnknownRole
- MSAA: ROLE_SYSTEM_PANE
- IA2: IA2_ROLE_VIEW_PORT