Constructs an editor reactor object that notifies of a drawing event (for example, opening or closing a drawing file)
Supported Platforms: Windows only
(vlr-dwg-reactor data callbacks)
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.
Type: List
A list of pairs of the following form:
(event-name . callback_function)
event-name is one of the following DWG reactor events:
DWG reactor events |
|
---|---|
Event name |
Description |
:vlr-beginClose |
The drawing database is to be closed. |
:vlr-databaseConstructed |
A drawing database has been constructed. |
:vlr-databaseToBeDestroyed |
The contents of the drawing database are about to be deleted from memory. |
vlr-beginDwgOpen |
AutoCAD is about to open a drawing file. |
:vlr-endDwgOpen |
AutoCAD has ended the open operation. |
:vlr-dwgFileOpened |
A new drawing has been loaded into the AutoCAD window. |
vlr-beginSave |
AutoCAD is about to save the drawing file. |
vlr-saveComplete |
AutoCAD has saved the current drawing to disk. |
callback_function is a symbol representing a function to be called when the event occurs. 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 “DWG reactor callback data” table.
DWG reactor callback data |
||
---|---|---|
Name |
List length |
Parameters |
:vlr-beginClose :vlr-databaseConstructed :vlr-databaseToBeDestroyed |
0 |
|
:vlr-beginDwgOpen :vlr-endDwgOpen :vlr-dwgFileOpened |
1 |
A string identifying the file to open. |
:vlr-beginSave |
2 |
First parameter is the database object to save at. Second parameter is a string containing the default file name for save, which may be changed by the user. |
:vlr-saveComplete |
2 |
First parameter is the database object to save at. Second parameter is a string containing the actual file name used for the save. |
Type: VLR object
The reactor_object argument from the callback_function.
N/A