cGetLBText and 248 error: This listbox does not support retrieval of item text

Keywords: 	   cGetLBText 248 error:  This listbox does not support retrieval of item text

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Question:

Can you tell me why cGetLBText cannot get the contents of the Devices applet listbox in the script below?

AddExtender("WWCTL34I.DLL")

Run("rundll32.exe", "shell32.dll,Control_RunDLL srvmgr.cpl,@2")

i=1
While !WinExist("Devices")
		Delay(1)
		i=i+1
		If i > 60 Then GoTo Err
EndWhile

WinActivate("Devices")
dvcs=DllHwnd("Devices")
lstbox=cWndByID(dvcs, 5501)
response=cGetLBText(lstbox)
enabledvcs=ItemLocate("i8042 Keyboard and PS/2 Mouse Pro Started", response, @TAB)
cSetLBItem(lstbox,enabledvcs)

Answer:

I ran your script on NT4 and can see that it generates the error message, "Wil Extender error: 248: This listbox does not support retrieval of item text," on the line, response=cGetLBText(lstbox).

I talked to the developers about it, and they said they have no way of retrieving the items in that particular type of listbox, because it is Owner Drawn - meaning that the parent dialog of that listbox has the text and the child window produces it on the fly with a query. The developers said they know of no mechanism to get at the contents of that type of listbox.

So you're out of luck with this one.

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Article ID:   W14328

Filename:   cGetLBText and 248 Error.txt