Calling an ActiveX Method with vlax-invoke-method

Using ActiveX without Importing a Type Library

Using ActiveX without Importing a Type Library

Obtaining an ActiveX Property with vlax-get-property

 

AutoLISP Developer's Guide > Using the Visual LISP Environment > Working with ActiveX > Using ActiveX to Interact with Other Applications > Using ActiveX without Importing a Type Library > 

Calling an ActiveX Method with vlax-invoke-method

The vlax-invoke-method function calls an ActiveX method directly. The function requires the following arguments:

• The VLA-object the method is to work on
• A symbol or string naming the method to be called
• One or more arguments to be passed to the method

The return value from vlax-invoke-method depends on the method being invoked.

For example, the following invokes the AddCircle method to draw a circle in the model space (represented by the mspace variable) of the current AutoCAD drawing:

_$ (setq mycircle 

           (vlax-invoke-method
mspace 'AddCircle circCenter 3.0))
    

#<VLA-OBJECT IAcadCircle 00bfd6e4>

In this example, circCenter is a variant (containing a three-element array of doubles) identifying the center of the circle, and 3.0 is the radius of the circle. The method returns a VLA-object, the circle drawn.