disp_info ( : : ProcName, Machine, DispProgram, Extension : )

Displays the manual information of a procedure on the screen.

The operator disp_info together with the previewer DispProgram shows the manual entry of the indicated procedure on the screen. The individual files (<Name: >.Extension) are located in the HORUS-Directory "doc/ps/reference/LANGUAGE/*", whereby the value for LANGUAGE will be determined by the currently used host language. The directory can also be generated with the help of the operator set_system(::'reference_dir','Pfad':).


Parameters

ProcName (input_control)
string -> string
Name of the looked for procedure.
Default value: 'read_image'

Machine (input_control)
string -> string
Name of the computer to which the data shall be transmitted or empty string.
Default value: ''

DispProgram (input_control)
string -> string
Name of the program which shall display the help text.
Default value: 'ghostview'
Suggested values: 'gs', 'ghostview'

Extension (input_control)
string -> string
Extension of the helpfile.
Default value: 'ps'


Result

If the parameter values are correct and if the file and the program are available, the operator disp_info returns the value TRUE. Otherwise an exception is raised.


See also

open_window



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