I tried eval, but get errors like 
  my $gnuplot = eval \$buffer->($canvas); 
 #OUTPUT:
 #Undefined subroutine &main::sub {

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or 
 my $gnuplot = eval \$buffer;  
 $gnuplot->($canvas); 

# OUTPUT
# Use of uninitialized value in subroutine entry at ....
# Undefined subroutine &main:: called at ./zz-std.....

[download]
I'm not really a human, but I play one on earth. Cogito ergo sum a bum

In reply to Re^2: subrefs, IPC and gnuplot's tkcanvas by zentara
in thread subrefs, IPC and gnuplot's tkcanvas by zentara

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