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AppleScript to test if application is running (See related posts)

By name:
tell application "System Events" to (name of processes) contains "iTunes"


By creator type, in case it might have a version # appended:
tell application "System Events" to (creator type of processes) contains "InDn"


Grab creator type dynamically like so:
tell application "Finder" to creator type of (selection as alias)


From http://applescriptsourcebook.com/viewtopic.php?pid=46830

to mac processes applescript processcontrol application running isrunning open by jamiew on Wed Jul 11 00:24:23 +0000 2007

Comments on this post

deweller posts on Jul 20, 2007 at 13:39
Here is a an example of how to use this:


if appIsRunning("iChat") then
	tell application "iChat"
		set status to available
	end tell
end if


on appIsRunning(appName)
	tell application "System Events" to (name of processes) contains appName
end appIsRunning

srhamy posts on Dec 07, 2008 at 06:41
How about run if not running, minimize if shown, or make visible if hidden?

Here's what I came up with, but cannot get it working

tell application "System Events" to set theCount to the count of (processes whose name is "Finder")
if theCount = 0 then
	-- run tri
else
	--first get name of top most app
	tell application "System Events" to set frontApp to name of application processes whose frontmost is true
	if frontApp = "Finder" then
	  tell "System Events" to keystroke "h" using command down
	else
		tell application "Finder" to activate
	end if
end if

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