(no argument)

-

-

Opens the standalone image viewer to display selected files.

Example: Show

FILE

<file>

Specifies the file or folder to show. If a folder is specified, all files directly below it will be queued to the viewer's "next / previous" list. If you don't provide a file or folder on the command line, all selected files from the folder tab the command was launched from will be used, if applicable. Remember to enclose paths in quotes if they contain spaces.

Since FILE is the default argument, you don't need to explicitly use its name. Both examples below do the same thing:

Example: Show "C:\Pictures\Mum & Dad.jpg"
Example: Show FILE="C:\Pictures\Mum & Dad.jpg"

The FILE argument can also be used with VIEWPANECMD=open to open a particular file in the lister's viewer pane.

Example: Show "C:\Cats\Best Cat.jpg" VIEWPANECMD=open

LISTSIBLINGS

/S

(no value)

When LISTSIBLINGS is used on its own, without AUTOFILELIST, it automatically populates the "next / previous" list in the viewer with other files from the same directory as the specified file (or single selected file).

If neither LISTSIBLINGS nor AUTOFILELIST are specified, or if the command is run against multiple selected files, only the specified or selected files will be included in the viewer's "next / previous" list.

See the description of AUTOFILELIST for what happens when both are specified, and the differences between the two.

Example: Show FULLSCREEN LISTSIBLINGS

NOUSEEXISTING

/S

(no value)

Prevents the re-use of an existing viewer window - a new window will always be opened. This overrides the Reuse existing viewer window option on the Viewer Behavior page in Preferences.

Example: Show NOUSEEXISTING

PLUGINABOUT

/K

<plugin name>

Displays the About dialog for the specified plugin. The <plugin name> can be the either the name of the plugin DLL (including the .dll extension) or the "pretty name" of the plugin.

Example: Show PLUGINABOUT text.dll

PLUGINDISABLE

/O

(no value)

Toggles the enable state of the specified plugin. If the plugin is currently enabled it will be disabled, and vice versa. The plugin must be specified using the PLUGIN argument.

Example: Show PLUGINDISABLE PLUGIN gifanim.dll

enable

Enables the plugin specified with the PLUGIN argument.

Example: Show PLUGINDISABLE=enable PLUGIN text.dll

disable

Disables the plugin specified with the PLUGIN argument.

Example: Show PLUGIN audiotags.dll PLUGINDISABLE disable

toggle

It is not necessary to specify "toggle", since it is the default if neither "enable" nor "disable" are specified, but you can if you want to be more explicit.

Example: Show PLUGIN="audiotags.dll" PLUGINDISABLE=toggle

Note that when a PLUGINDISABLE button is a toggle, the button will appear active (e.g. checked or highlighted) when the plugin is disabled. As with most commands, you can add @toggle:invert on a new line at the top of the command sequence to reverse this.

Example:
  @toggle:invert
  Show PLUGIN="wma.dll" PLUGINDISABLE=toggle

PLUGINMANAGER

/S

(no value)

Displays the Viewer / Viewer Plugins page in Preferences, which lets you see and manage your installed viewer plugins.

Example: Show PLUGINMANAGER

SIZE

/K

<width>,<height>

Overrides the default size of the standalone viewer.
 

Example: Show POS 1920,0 SIZE 960,1080

THUMBNAILSIZE

/K

<size>

Sets the size of thumbnails in the active Lister to the specified size in pixels. This overrides the global thumbnail size set in the File Display Modes / Thumbnails page in Preferences.

Example: Show THUMBNAILSIZE 192

<width>,<height>

Sets the width and height of thumbnails separately. This lets you have non-square thumbnail sizes if desired.

Example: Show THUMBNAILSIZE 92,64

<change>

Adjusts the size of thumbnails in the active Lister by the specified delta value. You must specify either a leading + or - to make this a relative size change.

Example: Show THUMBNAILSIZE +32

<change w>,<change h>

Adjusts both the width and height of thumbnails by the specified deltas.

Example: Show THUMBNAILSIZE +16,+24

left

Applies the size change to only the left (or top) file display in a dual-display Lister.

Example: Show THUMBNAILSIZE left,128

right

Applies the size change to only the right (or bottom) file display.

Example: Show THUMBNAILSIZE +64,right

source

Applies the size change to only the source file display.

Example: Show THUMBNAILSIZE source,64,80

dest

Applies the size change to only the destination file display.

Example: Show THUMBNAILSIZE dest,256

both

Applies the size change to both visible file displays in a dual-display Lister, but only the active folder tabs.

Example: Show THUMBNAILSIZE both,+32

all

Applies the size change to all file displays in the Lister, including both sides of a dual-display Lister and all folder tabs. This is the default behaviour.

Example: Show THUMBNAILSIZE all,+32

reset

Resets the thumbnail size to the value set in Preferences.

Example: Show THUMBNAILSIZE all,reset

list

Generates dynamic buttons that provide a number of thumbnail size options, intelligently chosen to suit your system DPI settings.
 

Example: Show THUMBNAILSIZE=list

VIEWERCMD

/K

<command>

Only for use in the standalone viewer, this command forms the basis of the default viewer toolbar, context menu and hotkeys. These commands can also be used from scripts that run within the context of the viewer.

alpha

Toggle the Hide Alpha Channel option on and off.
 

Example: Show VIEWERCMD=alpha

close

Closes the standalone viewer window.
 

Example: Show VIEWERCMD=close

cmdbar

Displays a FAYT-style command bar at the bottom of the viewer window, which lets you type in an ad-hoc command to run in the context of the viewer.
 

Example: Show VIEWERCMD=cmdbar

copy

Copies the currently selected region of the image to the clipboard.
 

Example: Show VIEWERCMD=copy

copyto

Prompts for a new filename to copy the currently viewed file to.
 

Example: Show VIEWERCMD=copyto

crop

Crops the image to the currently selected region. The file on disk is not modified unless the image is saved.
 

Example: Show VIEWERCMD=crop

cut

Cuts the currently viewed file to the clipboard. If you then perform a paste in a Lister the viewed file will be moved.
 

Example: Show VIEWERCMD=cut

delete

Deletes the currently viewed file (after prompting for confirmation, by default).

Example: Show VIEWERCMD=delete

The main difference between using this command and the actual Delete command is that the viewer will move to the next file after the current one has been deleted.

You may also specify one or more of the following Delete command arguments: shift, force, quiet, norecycle, recycle, or secure (or secure=n for n passes).

Any additional Delete command arguments must be included in a comma separated list without any extra spaces:

Example: Show VIEWERCMD=delete,quiet,secure=2

If no additional arguments are given, the shift argument is implicit, to maintain the old default behavior. If you only wish to disable the shift argument, use noshift:

Example: Show VIEWERCMD=delete,noshift

dragsel

Lets you trigger certain mouse actions from an OnViewerEvent script event. For example, when the script event is triggered to tell you the user clicked the left mouse button, you could trigger scrolling or expand mode depending on where on the window the mouse was clicked.

The default behavior is to scroll; use the "select" keyword to trigger selection mode, and "expand" to trigger expand/scroll mode.

By default the command assumes the left mouse button was used to trigger the event - use the "rclick" keyword for the right mouse button, and "mclick" keyword for the middle mouse button.

You can also provide the coordinates of the click by passing "pos:x,y" on the command line - if not provided, the current mouse position is assumed.
 

Example: Show VIEWERCMD=dragsel,expand,mclick,pos:100,100

first

Goes back to view the first file in the list.
 

Example: Show VIEWERCMD=first

flip

Flips the currently viewed image. The file on disk is not modified unless the image is saved. Use with horiz to flip horizontally or vert to flip vertically.
 

Example: Show VIEWERCMD=flip,horiz

fullscreen

Turns full-screen mode on and off. By default, it will toggle the setting, but you can also explicitly turn it on or off.
 

Example: Show VIEWERCMD=fullscreen
Example: Show VIEWERCMD=fullscreen,on
Example: Show VIEWERCMD=fullscreen,off

gamma

Adjust the gamma value of the image display. The adjustment value can be one of the following:

+<value>  - increase gamma by <value>
-<value>   - decrease gamma by <value>
<value>    - set absolute gamma value
0-<value> - set absolute negative gamma value
reset        - reset gamma to default value 

Example: Show VIEWERCMD=gamma,+1
Example: Show VIEWERCMD=gamma,reset

goto

Go to a specified file in the list. Must be used with a value indicating the image, where 0 is the first image, 1 is the second and so on. This command can also be used to jump forwards or backwards a specific number of files, by specifying a number preceded by + or -.
 

Example: Show VIEWERCMD=goto,0
Example: Show VIEWERCMD=goto,+10

help

Displays help about the image viewer.
 

Example: Show VIEWERCMD=help

hex

Toggles the display in and out of hexadecimal mode.
 

Example: Show VIEWERCMD=hex

info

Toggles the image information overlay on and off.
 

Example: Show VIEWERCMD=info

last

Go to the last file in the list.
 

Example: Show VIEWERCMD=last

mark

This keyword is used to control image marking. It has many different functions, which are accessed by combining it with the following keywords:

• (no sub-keyword): Toggle mark state of current image (same as the toggle keyword).
• browse: Browse marked pictures (opens the marked pictures collection in a new tab).
• clear: Clear all marks.
• exchange: Exchange the current image for the previously marked image (unmarks the previous one and marks this one in its place).
• first: Jump to the first marked image.
• last: Jump to the last marked image.
• next: Jump to the next marked image.
• nohighlight: Prevents a button being highlighted when the condition it describes is true (e.g. when an image is marked, stops a mark,toggle button from being highlighted). Use with on, off, toggle and view.
• off: Unmarks the current image.
• on: Marks the current image.
• prev: Jump to the previously marked image.
• return: Return from a jump to the image you were previously viewing (e.g. after mark,first to jump to the first marked image, mark,return would put you back where you were).
• toggle: Toggle mark state of current image.
• view: Toggle the marked pane on and off.

Example: Show VIEWERCMD=mark,toggle,nohighlight
Example: Show VIEWERCMD=mark,view

meta

Toggles the embedded metadata panel on or off, and controls its width. Combine with the following keywords:

• <width>: Specify the width of the metadata panel in pixels.
• grow: When opening the metadata panel, the viewer window will grow as much as possible to accommodate it. When closing the panel, provided the window has not been manually resized, its original width will be restored.
• nofocus: Prevents the metadata editor from gaining input focus when it opens.
• off: Turns the metadata panel off.
• on: Turns the metadata panel on.
• toggle: Toggles the metadata panel on and off.

Example: Show VIEWERCMD=meta,toggle,grow,400

minwidth

Save the width of the current viewer window as the new minimum width. When new viewers open they won't automatically size themselves narrower than this width.
 

Example: Show VIEWERCMD=minwidth

moveto

Prompts for a new filename to move the currently viewed file to.
 

Example: Show VIEWERCMD=moveto

next

Go to and view the next file in the list.
 

Example: Show VIEWERCMD=next

nextlist

Generates a list of the subsequent files in the image list (acts as a dynamic button - designed for use on the drop-down attached to the Next button).
 

Example: Show VIEWERCMD=nextlist

notfullscreen

Hides this button when the viewer is not in full-screen mode. You can combine this with any other keyword.
 

Example: Show VIEWERCMD=delete,notfullscreen

onlyfullscreen

Hides this button unless the viewer is in full-screen mode. You can combine this with any other keyword.
 

Example: Show VIEWERCMD=close,onlyfullscreen

open

Open and view a new file. By default this will prompt for the file to open, but you can provide a filename on the command line (e.g. from a script).
 

Example: Show VIEWERCMD=open

Example: Show VIEWERCMD="open,c:\my pictures\image.jpg"

pluginabout

Displays the About dialog for the current viewer plugin.
 

Example: Show VIEWERCMD=pluginabout

plugincfg

Displays the configuration dialog for the current viewer plugin (if it provides one).
 

Example: Show VIEWERCMD=plugincfg

plugincmd

Trigger a command provided by the current viewer plugin (if it provides any). The command is specified as a number where 0 means the first command, 1 means the second and so on.
 

Example: Show VIEWERCMD=plugincmd,0

plugincmds

Generates a list of the commands provided by the current viewer plugin (if it provides any). This acts as a dynamic button.
 

Example: Show VIEWERCMD=plugincmds

prev

Go to and view the previous file in the list.
 

Example: Show VIEWERCMD=prev

prevlist

Generates a list of the previous files in the image list (acts as a dynamic button - designed for use on the drop-down attached to the Previous button).

Example: Show VIEWERCMD=prevlist

print

Print the currently viewed file.
 

Example: Show VIEWERCMD=print

refresh

Refresh the currently viewed file. The file will be reloaded from disk.
 

Example: Show VIEWERCMD=refresh

reselect

Reselect the previous selection. This lets you easily crop more than one image to the same area (i.e. select a region, crop and save this image, move to the next image, reselect the previous region, crop and save, ...).
 

Example: Show VIEWERCMD=reselect

restore

Undoes the previous crop operation.
 

Example: Show VIEWERCMD=restore

rotate

Rotate the display of the current image. The file on disk is not modified unless you save the image. The amount to rotate by can be specified as follows:

+<value>  - rotate clockwise by <value> degrees
-<value>   - rotate anti-clockwise by <value> degrees
<value>    - set rotation to an absolute value
reset        - reset the rotation

Example: Show VIEWERCMD=rotate,+90 

save

Save any changes you have made to the current image. Use with the quiet option to replace the existing file silently. This command is unavailable if the image is not in one of the formats that Opus is able to save (currently PNG, JPG, BMP and GIF) - in that case, you can use saveas to save the image in one of those formats.
 

Example: Show VIEWERCMD=save,quiet

saveas

Prompts for a new filename to save the image to. The Save Picture dialog also lets you choose the image format to save in. You can optionally provide a filename to save to on the command line (e.g. from a script).
 

Example: Show VIEWERCMD=saveas
Example: Show VIEWERCMD "saveas,c:\my pictures\image.png"

scroll

Scrolls the current image. You must specify either horiz or vert to indicate the dimension you want to scroll, combined with another keyword to indicate how far to scroll. The keywords are:

• bottom: Scroll to the bottom (vertical) or far right (horizontal).
• down: Scroll down (vertical) or right (horizontal).
• horiz: Scroll horizontally.
• pagedown: Scroll down a page (vertical) or right a page (horizontal).
• pageup: Scroll up a page (vertical) or left a page (horizontal).
• top: Scroll to the top (vertical) or far left (horizontal).
• up: Scroll up (vertical) or left (horizontal).
• vert: Scroll vertically.
• center: Scroll to the center. Can optionally be combined with horiz or vert.

Example: Show VIEWERCMD=scroll,vert,pagedown 

selaspect

Fixes the aspect ratio of the selection marquee. You can specify an aspect ratio (16:9, 3/2, etc), or reset to remove the restriction.
 

Example: Show VIEWERCMD=selaspect,16:9
Example: Show VIEWERCMD=selaspect,reset

selectall

Select the entire image.
 

Example: Show VIEWERCMD=selectall

selectfile

Select the currently displayed file in the folder tab the viewer was launched from.
 

Example: Show VIEWERCMD=selectfile

shortcutbar

Toggle the display of the shortcut bar on and off.
 

Example: Show VIEWERCMD=shortcutbar

slideshow 

Toggle slideshow mode on and off.
 

Example: Show VIEWERCMD=slideshow

statusbar

Toggle the status bar on and off.
 

Example: Show VIEWERCMD=statusbar

toolbar

Toggle display of the toolbar on and off.
 

Example: Show VIEWERCMD=toolbar

wallpaper

Sets the currently displayed image as your Windows desktop wallpaper. By default the wallpaper will be set to center mode, but you can specify a mode by providing an additional keyword:

• center: The image will be centered on the desktop with a solid color fill surrounding it (this is the default).
• fill: The image will be expanded or shrunk to fill the desktop (may leave black bars at the top and bottom or sides, to preserve the aspect ratio).
• fit: The image will be expanded or shrunk to fill the desktop (the top and bottom or sides of the image may be cropped to preserve the aspect ratio).
• span: The image will be spanned across multiple monitors.
• stretch: The image will be stretched to fit the monitor, ignoring its aspect ratio.
• tile: A small image will be tiled multiple times horizontally and vertically to fit the monitor.

Example: Show VIEWERCMD=wallpaper,span 

zoom

Adjusts the zoom level of the current image display. You must provide an additional keyword to indicate the desired zoom level:

• + : zoom in.
• - : zoom out.
• +<value> : Zoom in a specified amount (percentage).
• -<value> : Zoom out a specified amount (percentage).
• <value> : Zoom to an absolute percentage of the original size.
• fit: Set zoom mode to "fit to page" - the image will be shrunk to fit the page if it's too large to fit all at once.
• grow: Set zoom mode to "grow to page" - the image will be shrunk to fit if it's larger, and expanded to fill the page if it's smaller.
• tile: Set zoom mode to "tile" - a small image will be tiled multiple times horizontally and vertically to fill the page.
• reset: Reset the zoom level.

Example: Show VIEWERCMD=zoom,+