OnUnload request

To David and the Grasshopper Development Team,

A small request that could be helpful to some. It would be nice to have a way to trigger a method upon unloading or closing grasshopper.

For example, a way to trigger a function that might do something on exiting grasshopper - for instance - have a function that would cause a window appear that could be used to do something like trigger a save process for data created in a custom plugin or alternatively destruct something, a display instance for example - you can imagine.

Just a thought.

Replies to This Discussion

Permalink Reply by David Rutten on October 11, 2014 at 1:35am

Grasshopper never really closes after it starts. Even the GrasshopperUnloadPlugin command only goes so far. You could add an eventhandler to the grasshopper main window (probably visiblechanged will work, I'm on an ipad now and cannot test). Also Rhino has events for when it shuts down.

Permalink Reply by Vicente Soler on October 11, 2014 at 9:42am

If you had a Surface Pro rather than an iPad, you could test it.

Permalink Reply by Mateusz Zwierzycki on October 11, 2014 at 10:17am

Wonder how those windows tablets handle Rhino... they rarely have 2 gb of ram, mostly 1.

Permalink Reply by Anders Holden Deleuran on October 11, 2014 at 10:42am

Actually Surface pro has 4-8 GB, at least according to wikipedia http://en.wikipedia.org/wiki/Microsoft_Surface :)

Permalink Reply by Vicente Soler on October 11, 2014 at 10:46am

Yep, I think Mateusz is thinking of the normal Surface, which runs Windows RT (Rhino won't even install there).

My girlfriend has a Surface Pro 2 with 8 GB of ram and an i5 processor, it's basically a laptop in tablet form. You can go up to an i7 with the Surface Pro 3.

Btw, there was never a Surface tablet with 1 GB of ram, the first one released started with 2 GB.

Permalink Reply by Marios Tsiliakos on October 11, 2014 at 12:51pm

Why girlfriends always have better notebooks/tablets than us?

Permalink Reply by Mateusz Zwierzycki on October 11, 2014 at 1:48pm

so true...

Permalink Reply by Thibault Schwartz on October 11, 2014 at 2:21pm

Surface Pro3 + VS2013 = geil combo lvl 60.

Permalink Reply by Vicente Soler on October 11, 2014 at 2:26pm

To be fair, she uses it to draw using a stylus and Photoshop. The tablet has an awesome pressure sensitive screen, many artists are choosing it over specialized graphics tablets.

I really have no use for something like this, David on the other hand I think he likes to draw...

Permalink Reply by David Rutten on October 11, 2014 at 3:00pm

I do like to draw. On paper. With pen.

Paper has the most amazing pressure sensitive resolution. If only it had undo...

Permalink Reply by Vicente Soler on October 11, 2014 at 4:01pm

I'd say consider the tradeoffs, but with 1024 pressure levels and movement resolution of 5080 dpi, the only advantage of pen and paper is being immune to an EMP blast.

Permalink Reply by Mateusz Zwierzycki on October 11, 2014 at 5:05pm

@Vicente - don't forget about this