gnuplot_open_pipe — Open a pipe to a gnuplot process for visualization of images and control
gnuplot_open_pipe is obsolete and is only provided for
reasons of backward compatibility.
gnuplot_open_pipe( : : : GnuplotFileID)
gnuplot_open_pipe opens a pipe to a gnuplot sub-process
with which subsequently images can be visualized as 3D-plots
gnuplot_plot_image) or control values can be visualized as
gnuplot_plot_ctrl). The sub-process must be
terminated after displaying the last plot by calling
gnuplot_close. The corresponding identifier for the
gnuplot output stream is returned in
gnuplot_open_pipe is only implemented for Unix-like systems because
gnuplot for Windows (
wgnuplot) cannot be controlled by an
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
Identifier for the gnuplot output stream.
gnuplot_open_pipe returns the value 2 (H_MSG_TRUE) if the
sub-process could be created. Otherwise, an exception is raised.