Re: [Visualpython-users] making objects transparent

[Martin C. <cos...@wa...>]

Bruce Sherwood wrote:
> There is a beta version of VPython which supports transparency. See 
> "Recent Developments" on the home page of vpython.org. Unfortunately, 
> although the beta version seems to work okay on Linux, it has serious 
> problems on Windows (and problems seem to be different on different 
> Windows machines), and there is no Mac version, which is why this new 
> version is still considered "beta".

Concerning the Mac, I have been trying for q while - with varying 
results - to make a Fink package for 4.beta. Most recently, building 
4.beta16 went OK, and the resulting vpython starts up test modules and 
shows the initial graphics window, but as soon as I touch the mouse, the 
window disappears and python crashes.

I am still strying to make sense of the crash log, it may be a 
libboost_python problem, because the backtrace starts with

#0  0x00033858 in PyDict_GetItem (op=0x7c14e40, key=0x0) at 
Objects/dictobject.c:569
#1  0x02188068 in boost::python::objects::function::call (this=0x67f1f0, 
args=0x203a210, keywords=0x7c14e40) at 
/sw/src/fink.build/boost1.33-1.33.1-1008/boost_1_33_1/libs/python/build/../src/object/function.cpp:183

There are also the following warnings at the console:

libglade-WARNING **: unknown property `urgency_hint' for class 
`gtkmm__GtkWindow'

Gtk-WARNING **: gtkwidget.c:3143: widget `gtkmm__GtkToolButton' has no 
activatable signal "clicked" without arguments

Can this be a gtk version problem?

-- 
Martin