"WithEvents" in VB.net component

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Permalink Reply by Steve Lewis on December 22, 2010 at 9:55am

The way i accomplish the same problem - waiting for an external program to finish while not causing grasshopper to hang while waiting for the program to finish processing - is to run the program in a back ground thread within your custom component. I dont have the code on me but I believe once the thread has expired I checked the canvas to see if there was a point where there is no current activity - i.e the canvas solution has finished - and then i expire the custom component that started the background thread to the external program by passing any data calculated from the external program as output data to the custom solution. I do remember it was very very tricky. I should be getting back to some coding this week and ill try and see exactly what I did and post something.

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Permalink Reply by Thorsten Strathaus on January 4, 2011 at 9:19am

Hey RubberDuck,

happy new year first!

 

And, this sounds interesting.

Did you have the time to look for the code?

It would be very interesting for me to look into it.

 

Thanks in advance

Thorsten

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Permalink Reply by Jon Mirtschin on January 4, 2011 at 10:21am

Dale Fugier (or similar) exposed a routine to RhinoScript for me a few years back, I've been meaning to ask him to expose it to dotNet library as I haven't found it there.

 

For the time being, I use this code, it should also help you.  I also revert the value at the end of the routine.  Maybe David can advise if it's possible to do this in the dotNET sdk.

 

Cheers,

 

Jon

 

 

object obj;

RhinoScript4.IRhinoScript rs = null;

obj = RhUtil.RhinoApp().GetRhinoScriptInterface();

rs = (RhinoScript4.IRhinoScript)obj;

 

if (rs != null)

rs.DisplayOleAlerts(false);

 

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Permalink Reply by Steve Baer on January 4, 2011 at 11:59am

Jon,

You can find this function in RhinoCommon at

Rhino.Runtime.HostUtils.DisplayOleAlerts(bool)

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Permalink Reply by Jon Mirtschin on January 4, 2011 at 8:52pm

Great news, thanks for letting me know Steve.

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Permalink Reply by Thorsten Strathaus on January 5, 2011 at 2:49am

Hi Steve,

and thank you very much !!

I thought I had to differenciate between Com-linked applikations and other OLE-linked ones like Excel, but this ...displayOleAlerts(false) does work fine.

 

Can't thank you enough,

Thorsten

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