User`s guide
INDEX 
94 
This also affects the units displayed in the status area at the bottom of the VueScan 
window. 
Advanced Option: This option is always displayed. 
Prefs | External viewer 
Setting this option to "Folder" will open a window at the end of the scan showing the 
contents of the folder where the file is written. On Windows, this opens an explorer 
window, on Mac OS X this opens a finder window and on Linux, this uses xdg-open to 
open a window. 
Setting this option to "Viewer" starts a program to display the image. On Windows and 
Mac OS X, this is the same program that starts up when you double-click on the file.   
On Linux, this uses xdg-open to view the file. 
Basic Option: This option is always displayed. 
Prefs | Viewer 
If the Prefs | External viewer (p. 94)option is set to "Viewer", the specified program will 
be started with each cropped image upon completion of a scan. 
The default value is "default". 
On Windows, if the viewer name is "default", the file association for this type of file will 
be used.    You can also put command-line options after the name of the viewer (e.g. 
"vuepro32 /fillwindow" to display images without a window frame with VuePrint).    If the 
name of the viewer has "%1" after it (e.g. vuepro32 "%1"), the file name will be 
substituted at that point.    If you use the %1 argument on the command line, be sure to 
put double-quotes around it, otherwise file names that have embedded spaces won't 
work. 
On Linux, the viewer name can have command-line options after it, and the file name 
will be appended to the end of the command-line before it's run. 
On Mac OS X, the files will start in the same application that would start if you 
double-click on the files. 
On Mac OS X, you can set up the default viewer for a type of file by clicking on an 
image, choosing "File | Show info", choosing "Open with application", selecting an 
application, and then choosing "Change all". 
Advanced Option: This option is displayed whenPrefs | External viewer (p. 94) is set to 
"Viewer". 
Basic Option: This option is always displayed. 
Prefs | Editor 
If the "External viewer" option is enabled, the specified program will be started with 
each OCR text file at the completion of a scan. 










