Hi, I would like to send commands to my Ruby plugin from an external source. They should be executed as soon as the command is send. While it’s possible to register callbacks for WebDialogs, as far as I know that’s not possible in other situations. Having a background thread blocks the whole progra…

[image] Bliss: an external source. Can you elaborate on your source? There are no API methods for callbacks from outside of the application. Knowing what kind of external source would help in making a suggestion - otherwise it’d be pure guessing to what might work for your particular situati…

In this case it’s another company with software written in C++. The simplest example I can think of is sending a command to highlight a particular object in Sketchup, which is selected in the other software and distinguished by a GUID.

I think I would have tried either sockets, shared memory or something like that. From a Ruby C Extension: GitHub - SketchUp/ruby-c-extension-examples: Ruby C extension examples The reason I wouldn’t use Ruby sockets is because getting Ruby threads to work in the SketchUp environment. For some reaso…

Yes, that’s the second option I thought of, but since I don’t know more than the absolute basics of C, I would’ve prefered the pure ruby way. Guess it’s time to dig in…

Yea, Ruby would have been easier - had it not been for the threading issues.

Ok, now I got something, but I don’t know how to proceed. After I downloaded the C extension example you linked to I created a new method MyNativeClass::Start() to start my C# server (a console application) and read the stdout pipe. This works fine, a console window opens and the output is redirecte…

Something like: cmd = "\"full_path_to_exe\"" spawn(cmd) ?

[image] Bliss: Now do you have a idea how I can start this in a new background thread? I don’t have a concrete example I’m afraid. If you plan to call SketchUp Ruby API methods they must be from the main thread. So you probably need something that polls your worker thread from the main thread…

[image] thomthom: I don’t have a concrete example I’m afraid. If you plan to call SketchUp Ruby API methods they must be from the main thread. So you probably need something that polls your worker thread from the main thread (without blocking it - timer?) So it’s not as easy as I initially th…

Defining callbacks to receive external commands?

Developers Ruby API

thomthom July 29, 2016, 9:56am 11

@jeroen - did you guys play with sockets?

Success Comunicating With External App Using TCPSocket

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Defining callbacks to receive external commands?

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