closing a canvas using Motif interface

Pasha Murat (murat@cdfsga.fnal.gov)
Fri, 2 Jan 1998 18:03:52 GMT


Hello, happy new Year to everybody!

I'm wondering if the following is a feature or something missing:
Consider an interactively created canvas:

root [0] TCanvas* c = new TCanvas("c","c",0,0,300,300);

which is *closed* using Motif interface (File->Close Canvas from popup menu).
In this case is not actually *deleted* and `c' object is still present in
memory after the canvas is closed

root [1] .g
... snip
0x104b7360 class TCanvas* c=0x103d6110

However it doesn't seem to be possible (and also doesn's make much sense)
to do anything with this object any more, for example:

root [2] c->Print()

*** Break *** segmentation violation

If it doesnt' break anything it would be nice to have a canvas object deleted
from memory any time the corresponding window is closed and disappears from
the screen.
Regards, Pasha.