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BillH

RegDelete

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BillH

I’m fairly new to AutoIT, and I’m having difficulty fully understanding some of the registry functions.

RegDelete will delete a key or value. It seems to be the case that a subkey cannot be deleted on its own. I need confirmation of my understanding of how the following RegDelete would be executed:

RegDelete("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\uvnc_service")

I would like to delete ONLY the subkey – “uvnc_service”, but the way I read AutoIT’s help file on RegDelete, every entry below the subtree – “HKEY_LOCAL_MACHINE\SYSTEM” would be deleted.

I need confirmation that my understanding is correct, or if not, an explanation of just what would be deleted. Any help would be greatly appreciated.

BillH

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ProgAndy

It should only delete the last segment or, if specified, the value. Anything else will be a bug :idea:

Edited by ProgAndy

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BillH

It should only delete the last segment or, if specified, the value. Anything else will be a bug :idea:

Thank you for the explanation. I now know RegDelete works as I need it to. I appreciate the prompt response.

BillH

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BillH

I have another question with regard to RegRead. I would like to use the following RegRead to determine if the last segment “uvnc_service” exists:

"If RegRead("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\uvnc_service") = "" Then"

I know that the null will be returned if I query a value that doesn’t exist, but is the same true if I query a non existant last segment in the same way?

Thank you,

BillH

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GEOSoft

Check the @Error return code to see what problems there are. For just testing with RegRead() I would test for the default value.

The error codes are given in the help file under RegRead()

RegRead("HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\uvnc_service")
MsgBox(0, "Error result", @Error)

EDIT: I guess I should have mentioned that you can use RegEnumKey() to determine if a key is valid or Not. In your case you would enumerate

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\

looking for uvnc_service

$i = 1
While 1
   $hEnum = RegEnumKey("HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network", $i)
   If @Error Then ExitLoop
   If $hEnum = "uvnc_service" Then
      MsgBox(0, "Result", "Key Found")
      ExitLoop
   EndIf
   $i += 1
Wend
Edited by GEOSoft

George

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BillH

Thank you both for the assistance.

I was looking for a way to determine if the subkey uvnc_service is valid or not. RegEnumKey() meets that need nicely.

Once the subkey uvnc_service is determined to be valid I need to delete that subkey, and that subkey alone. I was unsure of just how RegDelete functioned. I now know that in the scenario I described it will only delete the last segment or, if specified, the value. I didn’t want to risk deleting more of that key than I cared to.

There’s a bit of a learning curve here, and I very much appreciate your responses.

BillH

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