Monitor Script - Multiple Computers
- From: "HearSay" <hearsay@xxxxxxxxxxx>
- Date: Thu, 22 Mar 2007 15:49:15 -0400
I found this awesome script that pulls monitor info from the registry.
Works great with one computer, however, if I have it try to read a list, it
pulls the same monitor information from the first record in the list. I
have been struggling with this all day. Any insight into how to fix this is
much appreciated.
''''''''''''''''''''''''''
' Monitor EDID Information'
'''''''''''''''''''''''''''
'*****************************************************************************************
'17 June 2004
'coded by Michael Baird
'
Dim strarrRawEDID()
Dim arrMonitorInfo()
Dim location(3)
Const ForReading = 1
Const HKLM = &H80000002
Set FSO = CreateObject("Scripting.FileSystemObject")
Set RF1 = fso.OpenTextFile("computers.txt", ForReading, true)
Do While Not RF1.AtEndOfStream
RS1 = RF1.ReadLine
intMonitorCount=0
'get a handle to the WMI registry object
Set oRegistry = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" &
RS1 & "/root/default:StdRegProv")
sBaseKey = "SYSTEM\CurrentControlSet\Enum\DISPLAY\"
'enumerate all the keys HKLM\SYSTEM\CurrentControlSet\Enum\DISPLAY\
iRC = oRegistry.EnumKey(HKLM, sBaseKey, arSubKeys)
For Each sKey In arSubKeys
'we are now in the registry at the level of:
'HKLM\SYSTEM\CurrentControlSet\Enum\DISPLAY\<VESA_Monitor_ID\
'we need to dive in one more level and check the data of the "HardwareID"
value
sBaseKey2 = sBaseKey & sKey & "\"
iRC2 = oRegistry.EnumKey(HKLM, sBaseKey2, arSubKeys2)
For Each sKey2 In arSubKeys2
'now we are at the level of:
'HKLM\SYSTEM\CurrentControlSet\Enum\DISPLAY\<VESA_Monitor_ID\<PNP_ID>\
'so we can check the "HardwareID" value
oRegistry.GetMultiStringValue HKLM, sBaseKey2 & sKey2 & "\",
"HardwareID", sValue
for tmpctr=0 to ubound(svalue)
if lcase(left(svalue(tmpctr),8))="monitor\" then
'if it is a monitor we will check for the existance of a control subkey
'that way we know it is an active monitor
sBaseKey3 = sBaseKey2 & sKey2 & "\"
iRC3 = oRegistry.EnumKey(HKLM, sBaseKey3, arSubKeys3)
For Each sKey3 In arSubKeys3
if skey3="Control" then
'if the Control sub-key exists then we should read the edid info
oRegistry.GetBinaryValue HKLM, sbasekey3 & "Device Parameters\", "EDID",
arrintEDID
if vartype(arrintedid) <> 8204 then 'and if we don't find it...
strRawEDID="EDID Not Available" 'store an "unavailable message
else
for each bytevalue in arrintedid 'otherwise conver the byte array from the
registry into a string (for easier processing later)
strRawEDID=strRawEDID & chr(bytevalue)
next
end if
'now take the string and store it in an array, that way we can support
multiple monitors
ReDim preserve strarrRawEDID(intMonitorCount)
strarrRawEDID(intMonitorCount)=strRawEDID
intMonitorCount=intMonitorCount+1
end if
Next
end if
next
Next
Next
'*****************************************************************************************
'now the EDID info for each active monitor is stored in an array of strings
called strarrRawEDID
'so we can process it to get the good stuff out of it which we will store in
a 5 dimensional array
'called arrMonitorInfo, the dimensions are as follows:
'0=VESA Mfg ID, 1=VESA Device ID, 2=MFG Date (M/YYYY),3=Serial Num (If
available),4=Model Descriptor
'5=EDID Version
'*****************************************************************************************
redim arrMonitorInfo(intMonitorCount-1,5)
for tmpctr=0 to intMonitorCount-1
if strarrRawEDID(tmpctr) <> "EDID Not Available" then
'*********************************************************************
'first get the model and serial numbers from the vesa descriptor
'blocks in the edid. the model number is required to be present
'according to the spec. (v1.2 and beyond)but serial number is not
'required. There are 4 descriptor blocks in edid at offset locations
'&H36 &H48 &H5a and &H6c each block is 18 bytes long
'*********************************************************************
location(0)=mid(strarrRawEDID(tmpctr),&H36+1,18)
location(1)=mid(strarrRawEDID(tmpctr),&H48+1,18)
location(2)=mid(strarrRawEDID(tmpctr),&H5a+1,18)
location(3)=mid(strarrRawEDID(tmpctr),&H6c+1,18)
'you can tell if the location contains a serial number if it starts with
&H00 00 00 ff
strSerFind=chr(&H00) & chr(&H00) & chr(&H00) & chr(&Hff)
'or a model description if it starts with &H00 00 00 fc
strMdlFind=chr(&H00) & chr(&H00) & chr(&H00) & chr(&Hfc)
intSerFoundAt=-1
intMdlFoundAt=-1
for findit = 0 to 3
if instr(location(findit),strSerFind)>0 then
intSerFoundAt=findit
end if
if instr(location(findit),strMdlFind)>0 then
intMdlFoundAt=findit
end if
next
'if a location containing a serial number block was found then store it
if intSerFoundAt<>-1 then
tmp=right(location(intSerFoundAt),14)
if instr(tmp,chr(&H0a))>0 then
tmpser=trim(left(tmp,instr(tmp,chr(&H0a))-1))
else
tmpser=trim(tmp)
end if
'although it is not part of the edid spec it seems as though the
'serial number will frequently be preceeded by &H00, this
'compensates for that
if left(tmpser,1)=chr(0) then tmpser=right(tmpser,len(tmpser)-1)
else
tmpser="Serial Number Not Found in EDID data"
end if
'if a location containing a model number block was found then store it
if intMdlFoundAt<>-1 then
tmp=right(location(intMdlFoundAt),14)
if instr(tmp,chr(&H0a))>0 then
tmpmdl=trim(left(tmp,instr(tmp,chr(&H0a))-1))
else
tmpmdl=trim(tmp)
end if
'although it is not part of the edid spec it seems as though the
'serial number will frequently be preceeded by &H00, this
'compensates for that
if left(tmpmdl,1)=chr(0) then tmpmdl=right(tmpmdl,len(tmpmdl)-1)
else
tmpmdl="Model Descriptor Not Found in EDID data"
end if
'**************************************************************
'next get the mfg date
'**************************************************************
'the week of manufacture is stored at EDID offset &H10
tmpmfgweek=asc(mid(strarrRawEDID(tmpctr),&H10+1,1))
'the year of manufacture is stored at EDID offset &H11
'and is the current year -1990
tmpmfgyear=(asc(mid(strarrRawEDID(tmpctr),&H11+1,1)))+1990
'store it in month/year format
tmpmdt=month(dateadd("ww",tmpmfgweek,datevalue("1/1/" & tmpmfgyear))) & "/"
& tmpmfgyear
'**************************************************************
'next get the edid version
'**************************************************************
'the version is at EDID offset &H12
tmpEDIDMajorVer=asc(mid(strarrRawEDID(tmpctr),&H12+1,1))
'the revision level is at EDID offset &H13
tmpEDIDRev=asc(mid(strarrRawEDID(tmpctr),&H13+1,1))
'store it in month/year format
'tmpver=chr(48+tmpEDIDMajorVer) & "." & chr(48+tmpEDIDRev)
'**************************************************************
'next get the mfg id
'**************************************************************
'the mfg id is 2 bytes starting at EDID offset &H08
'the id is three characters long. using 5 bits to represent
'each character. the bits are used so that 1=A 2=B etc..
'
'get the data
tmpEDIDMfg=mid(strarrRawEDID(tmpctr),&H08+1,2)
Char1=0 : Char2=0 : Char3=0
Byte1=asc(left(tmpEDIDMfg,1)) 'get the first half of the string
Byte2=asc(right(tmpEDIDMfg,1)) 'get the first half of the string
'now shift the bits
'shift the 64 bit to the 16 bit
if (Byte1 and 64) > 0 then Char1=Char1+16
'shift the 32 bit to the 8 bit
if (Byte1 and 32) > 0 then Char1=Char1+8
'etc....
if (Byte1 and 16) > 0 then Char1=Char1+4
if (Byte1 and 8) > 0 then Char1=Char1+2
if (Byte1 and 4) > 0 then Char1=Char1+1
'the 2nd character uses the 2 bit and the 1 bit of the 1st byte
if (Byte1 and 2) > 0 then Char2=Char2+16
if (Byte1 and 1) > 0 then Char2=Char2+8
'and the 128,64 and 32 bits of the 2nd byte
if (Byte2 and 128) > 0 then Char2=Char2+4
if (Byte2 and 64) > 0 then Char2=Char2+2
if (Byte2 and 32) > 0 then Char2=Char2+1
'the bits for the 3rd character don't need shifting
'we can use them as they are
Char3=Char3+(Byte2 and 16)
Char3=Char3+(Byte2 and 8)
Char3=Char3+(Byte2 and 4)
Char3=Char3+(Byte2 and 2)
Char3=Char3+(Byte2 and 1)
tmpmfg=chr(Char1+64) & chr(Char2+64) & chr(Char3+64)
'**************************************************************
'next get the device id
'**************************************************************
'the device id is 2bytes starting at EDID offset &H0a
'the bytes are in reverse order.
'this code is not text. it is just a 2 byte code assigned
'by the manufacturer. they should be unique to a model
tmpEDIDDev1=hex(asc(mid(strarrRawEDID(tmpctr),&H0a+1,1)))
tmpEDIDDev2=hex(asc(mid(strarrRawEDID(tmpctr),&H0b+1,1)))
if len(tmpEDIDDev1)=1 then tmpEDIDDev1="0" & tmpEDIDDev1
if len(tmpEDIDDev2)=1 then tmpEDIDDev2="0" & tmpEDIDDev2
tmpdev=tmpEDIDDev2 & tmpEDIDDev1
'**************************************************************
'finally store all the values into the array
'**************************************************************
arrMonitorInfo(tmpctr,0)=tmpmfg
arrMonitorInfo(tmpctr,1)=tmpdev
arrMonitorInfo(tmpctr,2)=tmpmdt
arrMonitorInfo(tmpctr,3)=tmpser
arrMonitorInfo(tmpctr,4)=tmpmdl
arrMonitorInfo(tmpctr,5)=tmpver
end if
next
'For now just a simple screen print will suffice for output.
'But you could take this output and write it to a database or a file
'and in that way use it for asset management.
MonitorNumber = 1
For tmpctr=0 to intMonitorCount-1
'wscript.echo "Manufacture Date= " & arrMonitorInfo(tmpctr,2)
If arrMonitorInfo(tmpctr,3) <> "" Then
WScript.echo "Monitor " & chr(tmpctr+65)
WScript.echo "Serial Number= " & arrMonitorInfo(tmpctr,3)
wscript.echo "Model Name= " & arrMonitorInfo(tmpctr,4)
MonitorNumber = MonitorNumber + 1
End If
Next
Set oRegistry = Nothing
Loop
.
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