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CHAPT11.TXT
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1994-05-17
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<Chapter 11: Help>
The entire ORCHIS manual is available for on-line viewing via the
indexed HELP system. At any time, when you are using ORCHIS, you can press
F1 to activate HELP. A new screen layout is then created containing four
windows: a prompt window, a menu window, a graphic window and a document
window. The document window displays a portion of the ORCHIS manual text.
If there is an illustration accompanying the displayed text, it will
appear in the graphic window. See the illustration <[FIG13]>.
The HELP system is context sensitive. The portion of the document
initially displayed depends on the state of ORCHIS when HELP is invoked.
ORCHIS attempts to display the portion of the document relevant to your
current operation. The choice depends on the current menu being displayed
and on the last command executed.
While the HELP system is active, the NumPad keys on the keyboard are
detached from the cursor. (The cursor can only be moved via the mouse).
Instead the NumPad keys control the text displayed in the document window.
The up arrow (or left arrow) moves the displayed text backwards one line.
The down arrow (or right arrow) moves the displayed text forward one line.
PGUP and PGDN move the text display backwards or forwards one page. HOME
and END position the text at the start and end of the current chapter,
respectively.
When the discussion at one place in the document refers to
information located in a different section, there will often be a
cross-reference mark in the HELP display at that place. This mark consists
of a section number in square brackets displayed in red. If you have a
mouse, you can access the referenced section by positioning the cursor on
the cross-reference mark and pressing the left mouse button. This is
called clicking on the reference. If you do not have a mouse, you can use
the GOTO command <[11.8]> described below to display the new section.
Illustrations appear in the document text as figure references. These
are highlighted strings of the form "FIGxx" appearing in square brackets,
where "xx" is the figure number. You can click on a figure reference to
display that figure temporarily in the document window, pressing ESC when
you want to restore the normal document display. The same operation can be
performed with the ZOOM command <[11.9]> described below.
<Section 11.1: Up>
The UP command moves the document display backwards to display the
previous page of document text. The same function can be invoked by
pressing the page up key, PGUP. This command only moves within the
currently displayed chapter. To move to another chapter use the GOTO
command <[11.8]> described below.
<Section 11.2: Top>
The TOP command moves the document display to the top of the current
chapter. The same function can be invoked by pressing the HOME key.
<Section 11.3: Down>
The DOWN command moves the document display forwards to display the
following page of document text. The same function can be invoked by
pressing the page down key, PGDN. This command only moves within the
currently displayed chapter. To move to another chapter use the GOTO
command <[11.8]> described below.
<Section 11.4: Bottom>
The BOTTOM command moves the document display to the bottom of the
current chapter. The same function can be invoked by pressing the END key.
<Section 11.5: Contents>
The CONTENTS command displays the table of contents of the ORCHIS
manual. There is one entry for each section of the manual. Each entry
includes the section number and the section title. The HELP system treats
the table of contents like any other chapter of the document. All of the
HELP commands (UP, DOWN, SEARCH, REPEAT, etc.) are equally applicable to
the table of contents. When you have located the section that you wish to
consult, simply click on its section number in the table of contents to go
to that section of the document. You can also use the GOTO command
<[11.8]> described below to display that section.
<Section 11.6: Search>
With the SEARCH command you can search the current chapter (or table
of contents) for the first occurrence of a given word. The search begins
at the top of the current chapter. The search ignores the distinction
between upper and lower case; either case of a letter counts as a match
for that letter. If you want to find additional occurrences of the same
word use the REPEAT command <[11.7]> described below.
To operate the SEARCH command press the command letter, type in the
word you want to search for and press ENTER. ORCHIS will locate the first
occurrence of the string you typed, and will display it highlighted in red
in the document window.
The SEARCH command is particularly useful for searching the table of
contents to find the sections referring to a particular topic. See the
CONTENTS command <[11.5]> described above.
<Section 11.7: Repeat>
After you have used the SEARCH command <[11.6]> to find the first
occurrence of a given word, you can use the REPEAT command to find
subsequent occurrences of the same word within the current chapter. Press
the command letter to locate the second occurrence. Continue pressing the
command letter to find the third and subsequent occurrences.
<Section 11.8: Goto>
To display a particular chapter or section in the document window use
the GOTO command. Press the command letter, then type in the desired
section number and press ENTER. The designated section will be displayed
in the document window.
Section numbers consist of one, two, or three numbers separated by
periods. For example, 10, 10.2, and 10.2.4 are possible sections numbers.
The first number is the chapter number; the second is the section number
and the third the sub-section number. To find the section number of the
section that you want to consult, use the CONTENTS command <[11.5]> to
display the table of contents of the manual.
<Section 11.9: Zoom>
The ZOOM command temporarily replaces the document window display
with a magnified copy of the illustration displayed in the graphics
window. Press the command letter a second time (or press ESC) to restore
the document text display.