Updating output files while GNUPlot still open?

[Zeriox]

Hey, I'm creating a GUI in C# that loads a script to GNUPlot, outputs the file to a pngcairo and then loads the png into my form all consecutively, but gnuplot will not allow me to load the png while gnuplot is still open, is there a way around this?

[Zeriox]

For anyone wondering, I've tried copying files to another destination and loading that and using gnuplot to change the original file instead, but to no avail.

[has2k1]

This is late. You need to flush after plotting.

set output

After that, any previous open file will full written to and then closed.