plOptUsage
( | ) ; |
Prints the usage and syntax message. The message can also be
display using the -h command line option. There is a default
message describing the default plplot options. The usage
message is also modified by plSetUsage
and plMergeOpts
.
program_string
(const char *
, input)
String to appear as the name of program.
usage_string
(const char *
, input)
String to appear as the usage text.
This function is currently available in C, C++, Java, Ocaml, Octave and Python.
This function is not used in any examples.