[comp.windows.x] twm fixes actually a note on XGetWindowProperty

jim@EXPO.LCS.MIT.EDU (Jim Fulton) (11/18/88)

> Evidently the XGetWindowProperty call has changed in R3; now even if you 
> don't get the property you want it still sets the returned value to the null
> string,

Minor nit: the prop_return will be set to NULL if the property doesn't exist.
If the property does exist but is of zero length, the prop_return will then be
set to the null string.