Adobe 65007312 Programming Guide - Page 184

Viewing trace information using log files, Viewing trace information in a platform console

Page 184 highlights

CHAPTER 9: Getting Started: A Tutorial Example Debugging your plug-in 184 6. Save your changes, and reload your plug-in if necessary. Viewing trace information using log files These steps describe how to view debugging trace information using a text editor: 1. Start Lightroom. 2. Make sure your plug-in is configured to write debugging information to a log file, as described above: local LrLogger = import 'LrLogger' local myLogger = LrLogger( 'libraryLogger' ) -- the log file name myLogger:enable( "logfile" ) function MyHWLibraryItem.outputToLog( message ) myLogger:trace( message ) end 3. Once your plug-in has generated output, look for a the output file with the name you specified and the .txt extension ("libraryLogger.txt" in this example). Z In Windows, the file is located in your My Documents folder. Z In Mac OS, the file is located in the Documents folder inside your home directory. More advanced text editors will automatically notice and update their display when the file has changed; you may want to use such a text editor. In Mac OS, you may find it simpler to open a Terminal window and use the tail command to watch the file by typing a command such as: tail -f ~/Documents/libraryLogger.txt Viewing trace information in a platform console If you choose to print debugging information by setting LrLogger:enable( "print" ), you must use a platform-specific debugging tool to view the debugging trace information. Debugging in Windows WinDbg 1. Start Lightroom. 2. Start WinDbg. 3. In WinDbg, choose File > Attach to a Process.

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C
HAPTER
9: Getting Started: A Tutorial Example
Debugging your plug-in
184
6.
Save your changes, and reload your plug-in if necessary.
Viewing trace information using log files
These steps describe how to view debugging trace information using a text editor:
1.
Start Lightroom.
2.
Make sure your plug-in is configured to write debugging information to a log file, as described above:
local LrLogger = import 'LrLogger'
local myLogger = LrLogger( 'libraryLogger' ) -- the log file name
myLogger:enable( "logfile" )
function MyHWLibraryItem.outputToLog( message )
myLogger:trace( message )
end
3.
Once your plug-in has generated output, look for a the output file with the name you specified and
the
.txt
extension ("
libraryLogger.txt
" in this example).
Z
In Windows, the file is located in your My Documents folder.
Z
In Mac OS, the file is located in the Documents folder inside your home directory.
More advanced text editors will automatically notice and update their display when the file has changed;
you may want to use such a text editor.
In Mac OS, you may find it simpler to open a Terminal window and use the
tail
command to watch the
file by typing a command such as:
tail -f ~/Documents/libraryLogger.txt
Viewing trace information in a platform console
If you choose to print debugging information by setting
LrLogger:enable( "print" )
, you must use a
platform-specific debugging tool to view the debugging trace information.
Debugging in Windows WinDbg
1.
Start Lightroom.
2.
Start WinDbg.
3.
In WinDbg, choose
File > Attach to a Process
.