[Gnuplot-info] Interactive user input with gnuplot

[theozh <th...@gm...>]

Is there a way in gnuplot to interactively enter a few values, i.e.
numbers and strings?

The idea is to enable users which are not familiar with gnuplot and do
not want to (are not able to or should not) edit a gnuplot script to
generate plots which require a few custom values which are then stored
in user variables for further use in the script.

The command "pause" allows some very limited user input

pause mouse keypress "Type a letter"
# Returning the ASCII value of the key pressed in MOUSE_KEY
or
pause -1 "Hit a key to continue"

But I am looking for a simple popup window, e.g. like:

+------------------+
| Sample: .......  |
| Start:  .......  |
| Stop:   .......  |
|                  |
|   OK    Cancel   |
+------------------+

Any ways to achieve this?