IDL Reference Guide: iTools Object Classes

IDLitWindow::OnScroll

The IDLitWindow::OnScroll procedure method handles notification (from the native window device) that a scrolling event has occurred. This notification is passed on to the window's scene, which handles the cropping of each of its contained views. A scene represents a container for all of the views (and their corresponding visualization hierarchies) that appear within a window.

Syntax

Obj->[IDLitWindow::]OnScroll, X, Y

Arguments

X

A long integer representing the x-coordinate of the lower left corner of the visible portion of the canvas (in device coordinates) after the scroll.

Y

A long integer representing the y-coordinate of the lower left corner of the visible portion of the canvas (in device coordinates) after the scroll.

Keywords

None

Version History

  IDL Online Help (March 06, 2007)