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The following code fragment places the property list value in the variable LinePropertyList. As soon as you receive the entity name, you can use ENTGET to retrieve the object property list of the line entity name. Visual LISP responds with the entity name. To try this out, type the following code in the Console: The next expression assigns the value of the last created entity, as an entity name, to the variable LineEntity. The uppercase letter (in the function name) is used for readability, but you can type all lower-Īfter loading it, you can use this function (that is, draw the line) by typing the following in the Visual LISP Console:Īs explained in Chapter 35, to retrieve the last object that was created (the line), you use ENTLAST, as shown in the following code fragment. This function creates a line using the AutoLISP The following examples work with a line that is 10 units long, and created using the following AutoLISP function:
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To understand Visual LISP’s ActiveX features, you need to know how AutoCAD exposes an object’s properties in AutoLISP. This will help you to compare how AutoLISP works compared to ActiveX. In this section, you look at developing a small routine, written in AutoLISP, that mimics ActiveX properties and methods. Reviewing AutoLISP retrieval and modification The next section first reviews how you create these two functions in AutoLISP. Chapter 37 covers this hierarchical structure in more detail.ĪctiveX enables you to get information about objects (called get functions) and modify them (called put functions). You need to understand this structure before In ActiveX, objects are structured in a hierarchy. For example, you can also use ActiveX with Visual Basic for Applications (see the next chapter) and C++. ActiveX is a programming interface that is used within a programming language that supports it.
Autocad lisp using entlast in a command windows#
You can also use ActiveX to work with objects in other Windows applications that support ActiveX. AutoLISP supports ActiveX, giving you more information and flexibility in working with your drawings. Working with Visual LISP ActiveX FunctionsĪctiveX is an interface that exposes objects to the user, a programmer, or an application. Using the CD-ROM with Microsoft Windows.Working with Visual LISP ActiveX Functions.Understanding Local and Global Variables.Creating Keyboard Shortcuts for Commands.Pasting, Linking, and Embedding Objects.Importing and Exporting Other File Formats.Accessing Drawing Content with Tool Palettes.Accessing Drawing Components with the DesignCenter.Working with the User Coordinate System.Inserting Blocks and Files into Drawings.Preparing a Drawing for Plotting or Printing.Digitizing Drawings with the TABLET Command.Creating Baseline and Continued Dimensions.Importing Layers and Linetypes from Other Drawings.Changing Object Color, Linetype, and Lineweight.Using an Existing Drawing as a Prototype.Opening a Drawing with Default Settings.Closing a Drawing and Exiting from AutoCAD and AutoCAD LT.Using the AutoCAD and AutoCAD LT Interface.