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applescriptkeystroke

Script Editor hiding when telling a different application to close/hide

Why does the following Applescript hide Script Editor? 

tell application "Last.fm" to launch
tell application "System Events" to tell process "Last.fm" to keystroke "h" using command down

This code I found will hide "Last.Fm", but also hides Script Editor. Ideally, I want to replace the keystroke "h" with a keystroke "w" but then I get an error:

The document can’t be closed while the script is running.

Why does the script I wrote effect Script Editor?

Solution

  • I don't have Last.fm, so I tried this:

    tell application "TextEdit" to launch
delay 2
tell application "System Events" to tell process "TextEdit" to keystroke "h" using command down

    And sure enough, it's true, TextEdit was hidden but so was Script Editor.

    Then I tried this:

    tell application "TextEdit" to launch
tell application "TextEdit" to activate
delay 2
tell application "System Events" to tell process "TextEdit" to keystroke "h" using command down

    TextEdit was hidden, but Script Editor was not. So I would guess that this will help in your code too. Having the target app frontmost appears to be crucial (which makes a certain amount of sense, after all).