vlr-window-reactor (AutoLISP/ActiveX)

Constructs an editor reactor object that notifies of an event related to moving or sizing an AutoCAD window

Supported Platforms: Windows only

Signature

(vlr-window-reactor data callbacks)
data

Type: Integer, Real, String, List, VLA-object, safearray, variant, T, or nil

Any AutoLISP data to be associated with the reactor object; otherwise nil if no data.

callbacks

Type: List

A list of pairs of the following form:

(event-name . callback_function)

  • event-name is one of the following Window reactor events:

    Window reactor events

    Event name

    Description

    :vlr-docFrameMovedOrResized

    An MDI child frame window (a document window) has been moved or resized.

    :vlr-mainFrameMovedOrResized

    The main AutoCAD window has been moved or resized.

  • callback_function is a symbol representing a function to be called when the event fires. Each callback function accepts two arguments:

    reactor_object -- The VLR object that called the callback function.

    list -- A list of extra data elements associated with the particular event. The contents of this list for particular events are shown in the “Window reactor callback data” table.

    Window reactor callback data

    Name

    List length

    Parameters

    :vlr-docFrameMovedOrResized

    :vlr-mainFrameMovedOrResized

    2

    The first parameter is an integer containing the HWND of the window.

    The second parameter indicates whether the window has been moved or resized. The value is T if the window has been moved, nil if the window has been resized.

Return Values

Type: VLR object

The reactor_object argument from the callback_function.

Examples

N/A

Related Concepts