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Contents of the LOOK2.DOC file



LOOK2 v2.1 DOCUMENTATION

LOOK2 v2.1 A 32-bit OS/2 File Viewing Utility
Copyright (c) 1992, 1993 GCB Software (tm)
8511 Selway Drive, Austin, TX 78736


>>>>>>>>>>>>>>>>>>>>>>>> SHAREWARE SOFTWARE <<<<<<<<<<<<<<<<<<<<<<<<<

LOOK2 is copyrighted software. You may and are encouraged to copy
and share it with others as long as it is copied in its entirety
unmodified and no charge is made for it. If you find LOOK2 useful in
your OS/2 environment, please send a $25 registration fee along with
a filled-out registration form to the address below. In return, you
will receive a lifetime registration number that is valid for this
and any future versions of LOOK2. Registered users will receive
notifications by mail when new versions of LOOK2 are available to be
downloaded.

Although LOOK2 was written with great care and attention (I wrote it
originally for my own use), it like any other computer program may
contain bugs. That being the case, I must, reluctantly, make the
following disclaimer.

%%%%%%%%%%%%%%%%%%%%%%%%%% DISCLAIMER %%%%%%%%%%%%%%%%%%%%%%%%%%%%%

THE USER OF THE PROGRAM BY USING IT AGREES NOT TO HOLD GCB SOFTWARE
NOR ITS OWNERS NOR ITS EMPLOYEES LIABLE FOR ANY DAMAGE THAT MAY
HAVE BEEN CAUSED BY EITHER THE PROPER OR IMPROPER FUNCTIONING OR
BY THE USE OR MISUSE OF THE LOOK2 SYSTEM.

%%%%%%%%%%%%%%%%%%%%%%%% END OF DISCLAIMER %%%%%%%%%%%%%%%%%%%%%%%%

That being said, if you decide to become a registered user of LOOK2,
PLEASE let me know of any bugs you encounter in LOOK2. I may be
contacted by mail at the address below. If there is a feature
that you would like to see changed or added, please don't hesitate to
let me know. I cannot promise I will be able to implement your
ideas, but I will do my best.

Gary Bourque
GCB Software
8511 Selway Drive
Austin, TX 78736





TABLE OF CONTENTS



1. WHAT'S NEW FOR VERSION 2.1, 2.0 - - - - - - - - - - 1

2. HOW TO REGISTER FOR LOOK2 - - - - - - - - - - - - 3

3. INTRODUCTION - - - - - - - - - - - - - - - - - - - 4
What is LOOK2? - - - - - - - - - - - - - - - - - 4
LOOK2 Philosophy - - - - - - - - - - - - - - - - - 5


4. RUNNING LOOK2 - - - - - - - - - - - - - - - - - - 6
Starting LOOK2 - - - - - - - - - - - - - - - - - 6
Filespec Variations - - - - - - - - - - - - - - - 6
Directing LOOK2 with the Keyboard and Mouse - - - - 6
Setting LOOK2 Options - - - - - - - - - - - - - - 7
The LOOK2FLAGS Environment Variable - - - - - - - 7
LOOK2 Options - - - - - - - - - - - - - - - - - - 8


5. THE DIRECTORY SCREEN - - - - - - - - - - - - - - - 11
Directory Screen Option Commands - - - - - - - - - 11
Directory Screen Action Commands - - - - - - - - - 12
Directory Mouse Actions - - - - - - - - - - - - - - 14
Directory Screen Usage Notes - - - - - - - - - - - 14


6. THE FILE SCREEN - - - - - - - - - - - - - - - - - 15
File Screen Option Commands - - - - - - - - - - - 15
File Screen Action Commands - - - - - - - - - - - 16
File Screen Usage Notes - - - - - - - - - - - - - 17


7. OTHER LOOK2 NOTES - - - - - - - - - - - - - - - - 18




1. WHAT'S NEW FOR VERSION 2.1

Version 2.1 contains bug fixes related to OS/2 2.1.

A. Full-screen session freezes upon program exit.

B. Speed up directory screen light bar in window session.

C. alt-R command added to re-read directory,
refresh directory screen;


WHAT'S NEW FOR VERSION 2.0
PLEASE NOTE THAT SOME OPTIONS AND COMMANDS HAVE CHANGED.
Please review the documentation and help screens if you
have problems. If you are using OS/2 2.0 THIS VERSION REQUIRES
the IBM OS/2 2.0 fixes in OS/2 2.0 Standard Edition Service Pack
XR06055 or the mouse and synchronous child session execution will
not work correctly. SP XR06055 is available from your IBM
representative and some BBSes.

LOOK2 is, to some extent, a labor of love. The faithful
registration of a small, but dedicated group of users has
motivated me to create this new version. These people are
responsible for providing me with the enthusiasm to continue
developing and improving LOOK2. Thanks folks!

And thanks to everyone for your comments and suggestions!


A. LOOK2 v2.1 is now a 32-bit OS/2 2.x program. As such LOOK2 is a
faster, cleaner, more elegant program than before. It is also
larger. This due not only to added functionality, but to the
fact that 32-bit programs are, as a rule, 25%-30% larger that
the same program compiled as 16-bit. Please note that
LOOK2 v2.1 will not run on OS/2 1.x.

B. LOOK2 is now HPFS/IFS compatible. The program supports two
IFS directory screen modes. One will display one directory entry
per line, allowing for long file names. This is the default.
The other screen is identical to the FAT system screen, except
that long filenames will be compressed. Filenames will be
compressed as in the following example:

A.long.HPFS.file.name
will appear as
A.long.H nam

The entry will still be fully accessible. Use alt-F to toggle
between display modes. Use the /F option to set your preference.

C. LOOK2 now supports archive content listing capability with six
default types of archive files (ARC, ARJ, LZH, RAM, ZIP and ZOO).
You can change the default definitions or add new ones using the
/C option. You must have the archive programs in your PATH to
use this feature.


- 1 -



LOOK2 will display the archive listing as a file called $ARC$.LST.
Whether to delete, keep or "prompt for the fate of" $ARC$.LST is
controlled by the /A option or alt-A command.

D. LOOK2 now supports changing the basic attributes of directory
entries. The T command controls this function and works with
marked entries. View the directory entries in one column mode
to see their attribute settings.

E. LOOK2 now supports almost as many video lines modes as OS/2
under SVGA. 3-109 in windowed mode and 12,14,21,23-30,
33-34,39-43,45-50,54-60 in fullscreen mode are all valid.
If you want a good laugh, run LOOK2 after entering MODE 80,3
in a OS/2 window, or MODE 80,12 in a OS/2 fullscreen.

F. You can now execute DOS .COM, .EXE, and .BAT programs from LOOK2.
(.EXE programs now do not have to have an .EXE extension)
You can designate a DOS text editor as your default LOOK2 editor.

G. Ascending and descending sort keys are now supported. Enter a sort
key in lowercase for ascending; uppercase for descending.

H. Page scrolling in the directory menu with a mouse is now possible
by left-clicking or left-click-holding the arrows in the upper
and lower right corners of the screen.

I. Printing has always been possible in LOOK2. It just wasn't
documented. Just bring up the Copy prompt and copy the entry
to LPT1 or whatever LPT port you use.
Try not to print binary files.

J. The alt-O command shells to an OS/2 prompt from the file or
the directory screen. Uses the shell program specified in
the OS2_SHELL environment variable in CONFIG.SYS.

K. Mouse clicks on [] prompts will perform that response.

L. New /M option to set mouse-per-second (mousematic) rate.

M. The alt-C command (directory case) have been dropped.
The /C option now has a new function.

N. Various bug fixes, beautification and cleanup have be performed.


- 2 -



2. HOW TO REGISTER FOR LOOK2.

LOOK2 IS SHAREWARE. As such, you are expected, if you continue to
use it after an initial trial period, to register and pay for the use
of it. What is the length of the trial period? Well, I leave that
partially up to you and partially up to me. Those of us who have
used shareware pretty much know when we are done trialing a product
and have added it to our set of tools. When you reach that point
with LOOK2, please register. HOWEVER, THIS VERSION OF LOOK2 HAS A
BUILT-IN EXPIRATION DATE. The period between the release of this
product and the expiration date is fairly lengthy, allowing plenty of
time to evaluate this product. If your copy of LOOK2 expires and you
still wish to continue using it you should purchase the right to do so.

Registration is easy! You will be registered for life and
you will help all my hard work pay off. Here's what to do:

1. Fill out a copy of the enclosed order form. Please print
or type and be complete.

2. Mail the order form along with a check or money order
for the total number of copies ordered plus tax, if any.

3. In as short a time as possible, you will receive a letter
containing a registration number for each name registered
along with instructions on how to invoke LOOK2's registration
process.

4. When you receive the letter, start up LOOK2 for registration
and enter your name and number to it. Now you are registered.

5. As a registered user you will be notified by mail of any new
versions of LOOK2 and how to download them from a local or
national bulletin board.

Corporate multi-user accounts are available, please write for prices.

- 3 -



3. INTRODUCTION.


What is LOOK2?

LOOK2 is a 32-bit text-based OS/2 directory/file viewing and
manipulation program. I decided to write LOOK2 because I felt
there were no adequate directory/file tools for OS/2 at that time.
LOOK2 provides some of the same features of other popular file
viewers and adds some of its own that none of the others provide.


Just some of LOOK2's features are:

o Directory history.

o Mouse support.

o Multiple video modes.

o Full HPFS/IFS directory support.

o Multiple ascending/descending sort key directory sorting
capability with automatic sorting.

o File viewing in hexadecimal mode.

o Toggling between hex and text mode maintaining file position.

o Direct go to line or offset capability.

o Text editor invocation.

o OS/2 and DOS synchronous or asynchronous program execution.

o Ability to mark and copy, move, delete or change the attributes of
groups of files and subdirectories at once.

o Deletion of empty or non-empty directories.

o And more!


- 4 -



LOOK2 Philosophy

One of the main features I wanted to include in LOOK2 was the
ability to "travel" around among files, directories and drives and
still be able to easily get back where I started. With this in mind,
I built in a directory history feature that, when enabled, remembers
each directory you have viewed. Pressing the ESCAPE key from a
directory screen takes you back to the directory you were in before
the current one, if one exists.

That being the case, ESCAPE will never cause LOOK2 to terminate.
ESCAPE is the backout key in LOOK2. If you're like me, you find it
annoying when ESCAPE is used prominently to move around in a program
and also causes the program to terminate, because you often exit the
program unintentionally. So, F10 is the only keystroke that will
cause LOOK2 to terminate.


- 5 -



4. RUNNING LOOK2.

Starting LOOK2

LOOK2 is invoked from an OS/2 command prompt by typing

LOOK2 [options] [drive:][path][file]


Filespec Variations

If the drive\dir\file (filespec) data is the name of a file, the
file will be displayed for viewing. If it is a directory, the
directory will displayed. If it contains valid wildcards, any files
matching the wildcard will be queued for display and the first
matching file will be displayed. If no filespec is entered, the
current directory will be displayed.

If the file or directory cannot be found, LOOK2 displays a message and
displays the current directory. If the wildcard had no matches,
LOOK2 displays a message and then goes to the directory screen either
of the current directory or the directory (if found) included in the
wildcard spec. Please note that the wildcard portion of the filespec
is for files, not paths. So, while the following spec is valid...

LOOK2 F:\LOOK2\L*.?


This next one is invalid...

LOOK2 F:\LO**\LOOK2.EXE



Directing LOOK2 with the Keyboard or the Mouse

LOOK2 may be controlled either by a variety of keystrokes or mouse
actions. To enter a command either press the upper-cased letter of a
command listed in the top row of a directory or file screen or click
it with the left mouse button.

To change an option setting either press ALT and the letter of the
option or click the option (right of 'Op:' on the top row) with the
left mouse button. When an option is enabled, it will be uppercase;
when disabled, lowercase. Note, that while directory column count is
one of the options that can be clicked with the mouse, the
corresponding keyboard command does not require the ALT key to be
pressed. Just press 1 through 5 to change the column count.

ESCAPE is the backout key in LOOK2. The right mouse button is
equivalent to ESCAPE.

In directory viewing mode, the mouse may be used on the arrows in
the upper and lower right corners of the screen to page scroll.


- 6 -



In file viewing mode, the mouse may be used on the right scroll bar
to scroll through the file. Also, the cursor may be placed on a text
item by clicking the left mouse button. This is useful when using
Microsoft QuickHelp as a monitor under OS/2 since QuickHelp searches
for the subject at the cursor location when alt-Q is pressed.


Setting LOOK2 Options

Any number of LOOK2 options may be included before the filespec. A LOOK2
option has the following format.

/o[data]

Where o is an option letter or number and data is some required or
optional data for the option. If the option is of the on/off
variety, the '+' or '-' sign may be included to override settings in
the LOOK2FLAGS environment variable, where '+' is on and '-' is off.
If the '+' or '-' are omitted, '+' is the default. The options do
not have to be separated by spaces and may be upper or lower case.
Do not use a '-' in lieu of the '/'. For example to turn off any
sounds LOOK2 may produce enter:

LOOK2 /B-

Many LOOK2 options correspond to LOOK2 commands to the directory screen
or file screen or both.



The LOOK2FLAGS Environment Variable

Any option may be included in the LOOK2FLAGS environment variable.
When placed there, they will effect any execution of LOOK2. Note that
command line options always override the environment variable. The
LOOK2FLAGS environment variable may be set in CONFIG.SYS or in any
.CMD file you run to initialize command prompt sessions. Do not
placed filespecs to be viewed in LOOK2FLAGS, only options are
allowed. For example to turn off sound, place the following in
CONFIG.SYS or a .CMD file.

SET LOOK2FLAGS=/B-


- 7 -



LOOK2 Options

/1bf Sets border colors where b is the background color and
f is the foreground color.

Valid colors are:
Color Value Color Value

Black 0 Dark Grey 8
Blue 1 Light Blue 9
Green 2 Light Green A
Cyan 3 Light Cyan B
Red 4 Light Red C
Magenta 5 Light Magenta D
Brown 6 Light Yellow E
Light Grey 7 White F

Please note that colors 8-F used for background colors
will cause the foreground to blink in a full-screen session.

/2bf Sets text colors where b is the background color and
f is the foreground color.

/3bf Sets marked text colors where b is the background color and
f is the foreground color.

/A[D|K|P] Dispatch action on listing file produced from an archive
(e.g. .ZIP) file. D = delete, K = keep, P = prompt.
Default is 'D'. Corresponding command is alt-A.

/B[+-] Turns beep mode on or off. Defaults are on and '+'.
Corresponding command is alt-B.

/Cext~pgm~opt1~[optn~]
Defines an archive file listing program where ext is the
archive file extension, pgm is the archive program and
opt(s) are the options (commands) to be passed to the
archive program. The code for examining an archive is
not contained in LOOK2. What LOOK2 does is try to execute
a child program passing it appropriate parameters to
produce the listing file. You must have the archive
programs in your PATH.

WARNING! DO NOT DEFINE AN ARCHIVE PROGRAM IN SUCH A WAY
AS TO CAUSE THE PROGRAM TO PROMPT FOR KEYBOARD INPUT
DURING EXECUTION. DOING SO WILL CAUSE THE LOOK2 SESSION
TO LOCK UP.

LOOK2 has six default archive program definitions as follows:

Archive type Program name Options
------------ ------------ -------
ARC ARC2.EXE v
ARJ ARJ2.EXE l
LZH LHA2.EXE l /v /o
RAM LOADRAM2.EXE /G /Q
ZIP PKUNZIP2.EXE -vn
ZOO ZOO2.EXE l

As an example, the LZH definition in the /C option would be:

/CLZH~LHA2.EXE~l~/v~/o~

Then, when you execute the Arc command on the LZH directory
entry FOO.LZH, the following command would be excuted:

LHA2 l /v /o FOO.LZH

OS/2 versions of the archive programs must be used.
These programs are available at little or no fee from BBS'es
everywhere. If you have these utilities with different names
you may rename them or override the default definition using
/C.

See the /A option, Arc command and the alt-A command.


/Dn Sets number of columns in the directory screen where n is
1 - 5. The fewer the number of columns the more information
LOOK2 can display. Corresponding commands are 1, 2, 3, 4, 5.


- 8 -



/Efile~ops~...
Filespec of text editor program to be invoked when the
E command is executed and the operands to be passed to it.
THIS CAN BE A DOS PROGRAM.

Where:
file - Text editor filespec, may be file name only or
drive\dir\file. Include the file extension.
If name only must be in PATH=. Default is EPM.EXE
ops - Any operands (options) to be passed to the editor.
Must be separated by '~'.

See the /X option.

/F[+-] IFS (HPFS) directory screen mode. '-' Fully expands long
filenames (as much as will fit on one line). '+' compresses
long filenames in a screen that looks like the typical
LOOK2 screen for FAT file systems. Default is '-'.
Corresponding command is alt-F.

/I[+-] Turns directory history tracking on or off. Default is on.
Corresponding command is alt-I.

/K[k|K][f|F][e|E][s|S][d|D][t|T][a|A]
Directory menu sort keys where possible settings are any
combination and sequence of:

k or K - Kind (directory or file)
f or F - File name
e or E - File extension
s or S - File size
d or D - File last write date
t or T - File last write time
a or A - File attributes

Lowercase sort key causes ascending sort.
Uppercase sort key causes descending sort.
Default is kfe.

/L[+-] Causes (in directory screen) scroll down from bottom or
scroll up from top to "loop" back to the other end. When
off, LOOK2 beeps when a scroll passed top or bottom of list
is attempted. Default is off.
Corresponding command is alt-L.

/Mn Set mouse-per-second (mousematic) rate. Valid values are
1 - 1000. Default is 20.

/Pn Number of seconds LOOK2 displays a message before the message
is cleared. Valid values are 0 - 9. Zero (0) means the
message will not be cleared until a keyboard or mouse action
occurs. Default is 3.

/S[+-] Sets text search case sensitivity. Default is off.
Corresponding command is alt-S.

- 9 -



/Tn Set the width of a tab character and a horizontal scroll.
Valid values are 0-8. Default is 8. The alt-T command
toggles text display tab expansion on and off.

/Vnn Set video display mode line count. Valid values are many.
On a SVGA monitor, 3-109 in windowed mode and 12,14,21,
23-30,33-34,39-43,45-50,54-60 in fullscreen mode are all
valid. Default is setting of session when LOOK2 is started.
Corresponding command is alt-V.

/W[+-] Turn on or off long line wrapping in text file viewing mode.
Default is off. Corresponding command is alt-W.

/Xn Set default screen type of program executed with the
X command or the E command. Valid settings are:

0 - Get definition from the program.
1 - Full-screen.
2 - Windowed.
8 - Whatever LOOK2 is currently running under.

Default is 0. Note that this option is really useful
to set how to execute window-compatible or DOS programs.
Obviously, PM programs will always execute as PM
programs, and non-window-compatible text-based OS/2
programs will always executed in a fullscreen.
But, window-compatible text-based OS/2 programs and
DOS programs will be influenced by this option.

- 10 -



5. THE DIRECTORY SCREEN.

The LOOK2 directory screen presents a list of the entries in the
current directory plus all the drives on your computer. The first
entry will be highlighted. By using the direction keys or
single-clicking the mouse, you may highlight any entry. By pressing
ENTER or double-clicking the mouse on an entry, the entry will be
opened. That is, either the file will be displayed or the directory
or drive will be entered and displayed. Some directory screen
commands operate on the currently highlighted entry.

Directories are identified by an up-arrow or down-arrow prefix.
Up-arrow indicates the parent directory and will prefix only '..'.
Down-arrow indicates a subdirectory. Drives are identified by a ':'
in the second position and always appear last in the display.


Directory Screen Option Commands

The settings of the directory screen options are displayed on the
right side of the top line of the display next to the 'Op:'
heading. Letter settings in uppercase indicate the option is on;
lowercase indicates the option is off. The settings 1, 2, 3, 4, 5
in column 73 indicate the number of directory columns.


The setting may be toggled by single-clicking the option setting with
the left mouse button or by the following keyboard actions.

1 - 5 - Changes directory menu to the specified number of columns
The fewer the columns, the more information per entry is
displayed.

In the one column display the information displayed is:
Filename Extension Size Date Time Attributes

One column of information above is removed from the right (left
in IFS mode) for each one column increase in the display.
Corresponding command line option /D.

alt-A - Toggle archive list file dispatch action. Corresponding
command line option /A. See also the /C option.

alt-B - Toggle beep on or off. Corresponding command line option /B.

alt-F - Toggle directory screen display type for non-FAT systems.
Corresponding command line option /F.

alt-I - Toggle directory history on or off. When on, user will be
able to return to previously visited directories by pressing
ESCAPE or the right mouse button. Corresponding command line
option /I.


- 11 -



alt-L - Toggle directory scroll looping on or off. When on, scrolls up
from top or down from bottom will "loop" to the other end.
Corresponding command line option /L.

alt-O - Shells to a OS/2 command prompt. Uses the shell program
specified in the OS2_SHELL environment variable in CONFIG.SYS.
Enter 'exit' to return to LOOK2.

alt-V - Prompts for video lines mode. Corresponding command line
option /V.


Directory Screen Action Commands

For commands in upper and lower case, the upper case letter is the command
hot key.

HOME, END, UP, DOWN, LEFT, RIGHT, PAGE-UP, PAGE-DOWN
- Move light bar to highlight an entry name.

ENTER - Go to a new drive or directory or open a file for viewing.

INSERT - Marks the current entry for group copy, move or delete.
Parent directories and drives cannot be marked. When
a entry is marked, a flashing check mark will appear
between the filename and its extension.

DELETE - Unmarks the current entry.

alt-INSERT - Marks all entries.

alt-DELETE - Unmarks all entries.


Arc - Prompts whether to create a listing file of the current
entry. You may change the current archive programs
options at this point. If LOOK2 cannot determine the
archive's type from its extension, it will prompt you
for it. See /A option, the /C option and the alt-A
command.

ATtr - Prompts for new basic attributes of the current entry
or marked entries. Enter any of the following:

A or a -- Archive
H or h -- Hidden
S or s -- System
R or r -- Read-only

Uppercase turns the attribute on; lowercase turns it off.

Copy - Prompts the user for a location (directory or file)
and copies the current entry or the marked entries to
the location the user specifies.

Delete - Prompts the user for verification and deletes
current entry or the marked entries.


- 12 -



Edit - Invokes the editor specified in the /E option (or
EPM.EXE if /E not entered) to edit the current entry.
Directories and drives cannot be edited. See the /E and
/X options.

eXec - Prompts for arguments to the OS/2 or DOS program entry
and whether or not the program should be executed
asynchronously then the executes the current entry
if it has a .EXE, .COM, .CMD or .BAT extension.
(.EXE programs do not have to have an .EXE extension.)
If the program is executed synchronously, the program
must terminate before control will return to LOOK2. If
executed asynchronously, the program executes completely
separate of and continues to execute even after LOOK2
terminates. See the /X option.

mKdir - Prompts for a new directory name and creates it.

sPec - Prompts for a new filespec (directory, file or wildcard)
and displays it.

Move - Prompts the user for a location (directory or file)
and moves the current entry or the marked entries to
the location the user specifies.

Rename - Prompts the user for a new name and renames the
current entry to that name.

Sort - Prompts the user for sort keys and sorts the current
directory display accordingly. Multiple sort keys are
allowed. Drive letters are not included in the sort.
Possible values are any combination and sequence of:

k or K -- Kind (directory or file)
f or F -- File name
e or E -- File extension
s or S -- File size
d or D -- File last write date
t or T -- File last write time
a or A -- File attributes

Lowercase sort key causes ascending sort. Uppercase
sort key causes descending sort. The default is kfe.
Once sort keys are entered, they are active for any new
directory LOOK2 displays until they are changed or
cleared. If you request a sort but enter no keys
(i.e just press enter), the current sort keys are
cleared and no sorting is performed until new sort
keys are entered.

ESCAPE - Go to previous directory in history.

F1 - Display help screens.

F10 - Terminate LOOK2.


- 13 -



Directory Mouse Actions

Left click commands to execute.

Left click options to toggle.

Left click a directory entry to highlight it.

Left double-click a directory entry to open a file or enter a
directory or drive.

Left-click or left-click-hold arrows in upper and lower right
corners to page scroll.

Left-click on [] prompts (e.g. [Y]/[n]) will execute that response.

Right click is the same as ESCAPE.



Directory Screen Usage Notes


To print, Copy the entry to LPT1 or whatever LPT port you use.

If a subdirectory is the object of a copy command, then the target
name entered will be an existing or new directory.

Only the Attribute, Copy, Move and Delete commands can be operated
upon marked entries. Other commands can be executed upon the current
entry while entries are marked. But, be aware: Some commands force a
re-read of the directory which clears all marks.

Group copies to a file target do NOT concatenate, so there is no
reason to do this.

Moves across drives are not allowed. Use the Copy, then the Delete
commands.

If a file has the read-only attribute set, LOOK2 will notify the user
upon a delete request, but will carry out the deletion if the user
desires.

If you try to delete a non-empty directory, LOOK2 will warn you that you
are about to do so. You may then abort or proceed with the deletion.

Pressing ESCAPE or clicking the right mouse button will clear a dialog
box and abort the corresponding function.

Pressing ESCAPE or clicking the right mouse button will cause LOOK2 to
go to the previously displayed directory.


- 14 -



6. THE FILE SCREEN.

The LOOK2 file screen presents a single file to be viewed. The
direction keys or mouse actions on the scroll bar on the right may be
used to scroll through the file. The file may be displayed in either
text or hex mode. Lines may be wrapped if desired.


File Screen Option Commands

The settings of the files screen options are displayed on the right
side of the top line of the display next to the 'Op:' heading.
Letter settings in uppercase indicate the option is on; lowercase
indicates the option is off. The settings 1, 2, 3, 4, 5 in column 73
indicate directory column count.

A setting may be toggled by single-clicking the option setting with
the left mouse button or by the following keyboard actions.

alt-B - Toggle beep on or off. Corresponding command line option /B.

alt-H - Toggle hex display on or off.

alt-O - Shells to a OS/2 command prompt. Uses the shell program
specified in the OS2_SHELL environment variable in CONFIG.SYS.
Enter 'exit' to return to LOOK2.

alt-S - Toggle case sensitivity of text searches.
Corresponding command line option /S.

alt-T - Toggle expansion of tabs on or off. The tab width is
set by the /T option. Default is 8.

alt-W - Toggle line wrap on or off. Corresponding command line
option /W.

alt-V - Prompts for video lines mode. Corresponding command line
option /V.


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File Screen Action Commands

For commands in upper and lower case, the upper case letter is the command
hot key.

HOME, END, UP, DOWN, LEFT, RIGHT, PAGE-UP, PAGE-DOWN
- Scroll through file.

alt-LEFT - Go to column one.

Goto - Prompts for a line number in text mode or a hex or
decimal offset in hex mode and goes to it.

sPec - Prompts for a new filespec (directory, file or wildcard)
and displays it.

Quit - Go to next file in wildcard match list if wildcard
was input. Goes to directory screen if at end of
end of wildcard list or no wildcard was input.

ESCAPE - Go to directory menu.

F1 - Display help screens.

F2 - Prompts for a string and then searches forward for it
starting at the current position. Use alt-S to turn
case sensitivity on or off.

F3 - Searches again for the last input string. Case sensitivity
may be toggled in between searches.

F10 - Terminate LOOK2.


File Mouse Actions

Left click commands to execute.

Left click options to toggle.

Double left click scroll bar arrows to go to the top or bottom of
the file.

Left click or left click and hold on arrows to scroll up or down a
line at a time.

Left click or left click and hold on scroll bar body above or below
elevator to scroll up or down a page at a time.

Left click on text to place cursor. This is useful when running
QuickHelp as a monitor since QuickHelp will do an automatic search on
the subject above the cursor when alt-Q is pressed.

Right click is the same as ESCAPE.


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File Screen Usage Notes

Files with certain extensions will be brought up initially in hex mode.
The currently supported extensions are:

.EXE
.COM
.DLL
.OBJ
.LIB
.SYS (except CONFIG.SYS)
.DRV
.BIN
.FNT
.BMP
.GIF
.ARC
.ARJ
.LZH
.RAM
.ZIP
.ZOO
.INI
.IFS

When wrap mode is on, scroll actions still move by the text line. So,
if a line is wrapped once, scrolling passed it will cause the LOOK2 to
scroll two screen lines.

Toggling between text and hex modes will keep the current file
position. When you toggle from hex to text mode after scrolling in
hex mode LOOK2 must search for the current position from the top or
bottom of the file in order to determine the line number. So, there
may be a slight delay when viewing large files.

Searches done from hex mode will place the display in text mode.

Text marks set on file searches are cleared when a message is cleared.

Use the Goto command to move to a line number in text mode or a hex or
decimal offset in hex mode.

Pressing ESCAPE or clicking the right mouse button will clear a dialog
box and abort the corresponding function.

Pressing ESCAPE or clicking the right mouse button will cause LOOK2 to
go to the current directory display.


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7. OTHER LOOK2 NOTES


LOOK2 uses a separate thread to clear messages displayed upon the
screen. The /P command sets the number of seconds LOOK2 displays a
message before clearing it. Valid setting are 0 through 9. Zero (0)
turns off timed message clearing. The default is 3 seconds.

If a message is displayed, any keystroke or mouse action will clear
it immediately. The action will then be carried out. The exception
is ESCAPE (and right mouse button). If these are input when a message
is displayed, the message is cleared, but the ESCAPE action is not
carried over to the parent screen. So, ESCAPE can be used to clear a
message at any time. NOTE: Some special messages cannot be cleared
by a keystroke, but will clear themselves in a second or two.

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 December 12, 2017  Add comments

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