Some Visual Lisp codes deal with (car(entsel)) and others (ssget -> ssname ......)

[Tharwat]

Hello.

 

Not most of Visual Lisp functions in Help books are indicating that they are requiring single selection or multiple selection like ssget function.

 

So how could I know the required selection set to each Visual lisp Function ?

 

Many Thanks.

 

Tharwat.

[alanjt]

The help section for a particular function (eg. vla-put-constantwidth) will tell you that it needs a VLA-OBJECT/Safe Array as part of the requirements.

[Lee Mac]

Which functions were you referring to Tharwat?

 

None of the VL functions will deal with entity names (except vlax-curve*), and they certainly won't specify how to obtain the required arguments, just that you supply them.

[Tharwat]

Usually all functions that starts with vla are not available with Cad help. Besides that, PDF books which

we couldn't find lots of undocumented functions.

 

And your example with (vla-put-constantwidth ) is more than enough for that issue.

 

Is this right ?

 

Tharwat

[Lee Mac]

The help on the vla* functions is written in terms of VBA, but the argument type, number and order is still applicable to VL. To get the help, double-click on a function to highlight it and click on the beige help button (speech bubble with question mark).

[alanjt]

Tells me exactly what the function requires...

[Tharwat]

Which functions were you referring to Tharwat?

 

None of the VL functions will deal with entity names (except vlax-curve*), and they certainly won't specify how to obtain the required arguments, just that you supply them.

 

Thanks indeed.

 

For example that given function by Alanjt, When I look for it in help it would drive me to the VBA which makes me confused with it,

because the function is no written completely in its part and belong to VBA.

 

So how could I know the action of that function. The same image that given by Alanjt in his last reply ?

 

Many thanks

[Lee Mac]

Exactly, from the image Alan has provided:

 

(vla-put-ConstantWidth <VLA-Object> <Real>)

[alanjt]

(vla-put-ConstantWidth VLA-OBJECT 3.0)

[Tharwat]

So do all VBA functions all used by Visual Lisp with the start of (vla-put- ......) or (vla-get-.......) for example ?

 

That's what I realized while searching for functions that are not existed in VL division till now.

 

Regards.

[Lee Mac]

Tharwat,

 

Read all of this carefully, it should answer a lot of your questions

 

Lee

[Tharwat]

Thanks Lee for that reference.

 

And here what I have been looking for as shown in the attached image.

 

Best regards,

 

Tharwat