Difference between Send(n) and n*Send(1)

[yookee]

For Example

Send("{TAB " & $n & "}")

and

For $i = 1 To $n

Send("{TAB}")

Next

They may be same one. As if set SendKeyDelay before them, there is little difference.

In later codes, of course, a SendKeyDelay between twice Send()s. Then how is the former? In Send(n) on my computer, it seem delay "Default" delay.

Opt("SendKeyDelay", 40) befit me, 30ms go wrong.

Default SendKeyDelay is 5ms in help.

[PsaltyDS]

For Example

Send("{TAB " & $n & "}")

and

For $i = 1 To $n

Send("{TAB}")

Next

They may be same one. As if set SendKeyDelay before them, there is little difference.

In later codes, of course, a SendKeyDelay between twice Send()s. Then how is the former? In Send(n) on my computer, it seem delay "Default" delay.

Opt("SendKeyDelay", 40) befit me, 30ms go wrong.

Default SendKeyDelay is 5ms in help.

I don't see what the question is. The delay is very consistent. The total time for one key send is SendKeyDelay plus SendKeyDownDelay, which by default is 5ms + 5ms = 10ms. Changing the SendKeyDelay gives very consistent results when tested:

expandcollapse popup

$n = 20

Opt("SendKeyDelay", 40)

$iTimer = TimerInit()
Send("{TAB " & $n & "}")
ConsoleWrite("Send() with delay = 40:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

$iTimer = TimerInit()
For $i = 1 To $n
    Send("{TAB}")
Next
ConsoleWrite("Loop with delay = 40:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

Opt("SendKeyDelay", 5)

$iTimer = TimerInit()
Send("{TAB " & $n & "}")
ConsoleWrite("Send() with delay = 5:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

$iTimer = TimerInit()
For $i = 1 To $n
    Send("{TAB}")
Next
ConsoleWrite("Loop with delay = 5:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

Opt("SendKeyDelay", 0)

$iTimer = TimerInit()
Send("{TAB " & $n & "}")
ConsoleWrite("Send() with delay = 0:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

$iTimer = TimerInit()
For $i = 1 To $n
    Send("{TAB}")
Next
ConsoleWrite("Loop with delay = 0:  " & Round(TimerDiff($iTimer)) & "ms" & @LF)

Results:

>Running:(3.2.12.1):C:\Program Files\AutoIt3\autoit3.exe "C:\temp\Test.au3" 
Send() with delay = 40:  935ms
Loop with delay = 40:  936ms
Send() with delay = 5:  208ms
Loop with delay = 5:  207ms
Send() with delay = 0:  102ms
Loop with delay = 0:  106ms
+>10:27:05 AutoIT3.exe ended.rc:0

[yookee]

Great, creditably MVP.

I found that is my mistake catching different focus each time. So it always click wrong button.

I set SendKeyDelay very large look where each TAB focus .