Activate excel multiple times

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A macro of mine should copy data from a program (UVprobe) to Excel. This is done by ‘Application.SendKeys "^c"’ to copy data from Uvprobe and ‘Application.SendKeys "^v"’ to insert data in Excel.

This entails shifting from UVprobe to Excel a lot of times. After a short time Excel freezes "Excel (not responding)" I made this little testprogram which also creates the error after only 3 loops

Sub Apptest()

For i = 1 To 10

    AppActivate "notepad"
    Sleep 1000
    AppActivate Application.Caption
    Sleep 1000
Next i 
End sub

What I have tried:

If I put in “Word” instead of Application.caption I don’t get any error. What can be the reason ? It seems that Excel fills up the memory, but I can’t see what uses memory in the test program.

Posted 23-Oct-18 8:20am

Koppelgaard

Updated 23-Oct-18 20:58pm

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Maciej Los · Answer 1 · 2018-10-23T20:58:00

As MSDN documentation states, it's recommended to activate application by its ID instead of caption/title. See: AppActivate Statement | Microsoft Docs[^]

You can use API too: Two ways to activate a program with VBA if already open[^]

But, honestly, i'd start looking fot different method to get data from UVprobe application.