Question

我正在尝试通过bashscript和applescript控制多个VLC实例 - 我通过他们的pid访问它们。我在一个小的手动测试中工作，这很好用：

tell application "System Events"
set VLC_VGA to application processes whose unix id is 598
repeat with proc in VLC_VGA
    set the frontmost of proc to true
    keystroke "p" using {command down}
end repeat
end tell

我现在想要动态插入pid（598或者它可能是什么）。这是我到目前为止 - 但不会起作用：

property accumulator : ""

on run argv
set vlcPID to item 1 of argv
set accumulator to do shell script "echo 'echo test returns'" without altering line endings
startPlayingVLC(vlcPID)
set ln to do shell script "echo 'started VLC instance: " & vlcPID & "'" without altering line endings
set accumulator to accumulator & ln
return accumulator
end run

on startPlayingVLC(pid)
tell application "System Events"
    set ln2 to do shell script "echo 'starting VLC instance: " & pid & "'" without altering line endings
    set accumulator to accumulator & ln2
    set VLC_VGA to application processes whose unix id is pid
    set ln3 to do shell script "echo 'VLC_VGA process: " & VLC_VGA & "'" without altering line endings
    set accumulator to accumulator & ln3
    repeat with proc in VLC_VGA
        set the frontmost of proc to true
        keystroke "p" using {command down}
    end repeat
end tell
end startPlayingVLC

我通过

调用脚本

osascript /Users/devuser/Development/AppleScript/playVLCAppViaPID.scpt 598

这不再起作用了 - pid无法识别。 do shell脚本调用基于another question on do shell scripts in loops，可以正常工作。

到目前为止，我发现它无法识别下一行中的pid

 set VLC_VGA to application processes whose unix id is pid

即使pid正确传递并且echo（ln2）显示正确的pid，VLC_VGA上的echo（ln3）之后也不会返回任何内容。

我在这里做错了什么？

Answer 1

问题解决了：pid需要作为整数传递。

如：

set VLC_VGA to application processes whose unix id is pid as integer

通过终端/ bash脚本将参数传递给applescript的问题

1 个答案: