--init - initialize all cached properties. Delete all temp files created by HippoEDIT: file properties, buffered syntax files, buffered autocorection etc (all he*.tmp files in %TEMP% folder)
-t [file type] - syntax to apply to passed files
--landscape - the argument should be used together with --print (-p) or print_to
--print_to, arg equal to name of printer where you want to print
--debug - has nothing to do with real debugging, just enable some traces
| -m [ --new-instance ] | | start another instance |
| --config arg | | set configuration directory |
| --init | | initialize all cached properties |
| --portable | | run application in portable mode |
| --debug | | enables debug mode |
| -d [ --directory ] arg | | set current directory |
| --title arg | | append 'title' to the main window title bar |
| -u [ --no-recent ] | | do not add the file to the Recent Files list |
| -w [ --workspace ] arg | | name of saved workspace, if empty, no would be loaded |
| -h [ --help ] | | produce help message |
| --close_all | | close all documents |
| -s [ --save_all ] | | saves all modified documents |
| -i [ --input-file ] arg | | input files |
| -l [ --line ] arg | | line number |
| -c [ --column ] arg | | column number |
| -r [ --read-only ] | | read-only mode |
| -t [ --type ] arg | | file type |
| -e [ --encoding ] arg | | sets an encoding for file |
| -n [ --new ] | | creates new file |
| --paste | | paste clipboard content |
| --find arg | | search current document |
| --landscape arg | | set landscape/portrait orientation for printing |
| --print_to arg | | call print to dialog |
| -p [ --print ] | | direct print |
| --minimized | | start minimized (iconized) |
Edit: added full list of HE HippoEDIT command line arguments / parameters commandline argument parameter