## Starting mrViewer

mrViewer can be started in a variety of ways.
By default, when installing mrViewer, you will also be given the choice to create an icon on your desktop. If you have done that, you can often just click on the mrViewer icon on the desktop.
If you have no icon on your desktop, the simplest way is to go the place where mrViewer was installed, look for the directory for the appropiate platform and architecture for your machine and click on the mrViewer or mrViewer.exe application icon.
mrViewer can also be started from any command-line or shell window, as mrViewer may have already added its path to your standard system PATH variable. Open any shell window and then you can type in:
> mrViewer [-options] [<images...>]
where -options are optional mrViewer command-line options and images are optionally a list of images or sequences you want to display. For a list of valid options, use:
> mrViewer -h
On certain platforms, like Windows, mrViewer can also associate itself to several image and video files it knows about. In that case, opening a Windows Explorer window and double-clicking on a file that mrViewer recognizes may automatically invoke a new copy of mrViewer.
If mrViewer has the single instance preference set, only one mrViewer will get started and any other image that would go to a new viewer will get redirected back to the first instance. In order for this to work, mrViewer creates a dummy lock file in your home directory in:
$HOME/.fltk/filmaura/mrViewer.lock.prefs
on linux
and
$USERPROFILE/filmaura/mrViewer.lock.prefs