Passing pressing "Enter" key for Commands

[Anonymous]

I am trying to use MATLAB to interface with AutoCAD by using ActiveX COM control. When I use "SendCommand" method to send commands to AutoCAD, I put space at the string's end " " to make it can be interpreted as "Enter". It works for most commands, but it does not work for "-PARAMETER" command.

"-PARAMETER" needs to make a selection  among [NEW EDIT RENAME DELETE]  options and it requires to press "Enter" key then. Space at the end does not work anymore. Does anyone have idea to solve this problem? 

It looks like someone using ".NET" control put "\n" at the end to pass "Enter" key, but it does not work here.

[lando7189]

For the string as the 'command' argument use:

"-PARAMETER" & VbCr

- Lanny

[Anonymous]

Hi, thank you for the reply. But if I understand correctly, the VbCr is
used in the .NET control? Currently I am using MATLAB to send commands like:

invoke(c_doc,"SendCommand","-PARAMETER E ");

I put VbCr at the string end like you mentioned, it does not work.

[Ranjit_Singh]

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@Anonymous wrote:
.....................
invoke(c_doc,"SendCommand","-PARAMETER E ");
.....................

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What happens with

invoke(c_doc,"SendCommand","-PARAMETERS E\n");

[Anonymous]

This is the AutoCAD Command Bar after receiving the command you ask.

[Ranjit_Singh]

OK. How about now?

invoke(c_doc,"SendCommand","-PARAMETERS E test\n");

[Anonymous]

Hi, it is the same but "\n" changes to "test\n".

My understanding is ActiveX is not very universal to AutoCAD, even though
it can support more programming language. But some commands are not
well-defined.

I properly need to switch to the .NET.....

[lando7189]

Sorry earlier for the VB code.  .... can you try the following:

invoke(c_doc,"SendCommand","-PARAMETER" + newline + "E" + newline);

[divymital]

Can you please suggest a way to press enter button through lisp.

[Kent1Cooper]

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@divymital wrote:

Can you please suggest a way to press enter button through lisp.

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An empty text string, that is, two double-quote characters with nothing between them  ""  is Enter in AutoLisp (command) functions.  I'm not familiar with .NET, but if the original description in Message 1

    I put space at the string's end " " to make it can be interpreted as "Enter".

works in a given programming language, I would hope that "" would work for Enter [and not be "interpreted as" Enter].

[divymital]

Hi.. Thanks for response ! We need to have the enter keyword press using lisp or activex functions. This is in order to kill a object arx popup by pressing enter keystoke.

[Kent1Cooper]

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@divymital wrote:

Hi.. Thanks for response ! We need to have the enter keyword press using lisp or activex functions. This is in order to kill a object arx popup by pressing enter keystoke.

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I don't know that it will work if a popup is on-screen, because I'm not sure that will take input from an AutoLisp (command) function.  If you can suppress the popup and have whatever it is work from the command line, then the AutoLisp way to give it Enter would be:

  (command "")

or in many cases, simply

  (command)

with no arguments will cancel most things.

[phucquang]

Can we do it by lisp?