vlr-wblock-reactor (AutoLISP/ActiveX)

Constructs an editor reactor object that notifies of an event related to writing a block

Supported Platforms: Windows only

Signature

(vlr-wblock-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 Wblock reactor events:

  Wblock reactor events
  Event name	Description
  :VLR-wblockNotice	A wblock operation is about to start.
  :VLR-beginWblockPt	A wblock operation is being performed on a set of entities.
  :VLR-beginWblockId	A wblock operation is being performed on a specified block.
  :VLR-beginWblock	A wblock operation is being performed on an entire database. Notification does not occur until all the entities in the source database's model space are copied into the target database.
  :VLR-endWblock	A wblock operation completed successfully.
  :VLR-beginWblockObjects	wblock has just initialized the object ID translation map.

• 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 “Wblock reactor callback data” table.

  Wblock reactor callback data
  Name	List length	Parameters
  :VLR-wblockNotice	1	Database object (VLA-object) from which the block will be created.
  :VLR-beginWblockPt	3	First parameter is the target database object (VLA-object). Second parameter is the source database object (VLA-object) containing the objects being wblocked. Third parameter is a 3D point list (in WCS) to be used as the base point in the target database.
  :VLR-beginWblockId	3	First parameter is the target database object (VLA-object). Second parameter is the source database object (VLA-object) containing the objects being wblocked. Third parameter is the object ID of the BlockTableRecord being wblocked.
  :VLR-beginWblock :VLR-otherWblock	2	First parameter is the target database object (VLA-object). Second parameter is the source database object (VLA-object) containing the objects being wblocked.
  :VLR-abortWblock :VLR-endWblock	1	The target database object (VLA-object).
  :VLR-beginWblockObjects	2	First parameter is the source database object (VLA-object) containing the objects being wblocked. Second parameter is an ID map.

Return Values

Type: VLR object

The reactor_object argument from the callback_function.

Examples

N/A