API SetComputerName

I want to set my computername with an api call.

StrCpy $ComputerName "TestName"

System::Call 'kernel32.dll::SetComputerName???(t "$ComputerName") i .r0'

I tried SetComputerName, SetComputerNameA, SetComputerNameEx, SetComputerNameExw.
If I use

System::Call 'kernel32.dll::SetComputerName(t "$ComputerName") i .r0'

The Computername is inserted in the registry, but the name isn't changed.

I read on
MSDN something about COMPUTER_NAME_FORMAT
I think i'm missing something.

Hope that someone can help me.

I think i'm missing something.

Awnser

MSDN something about COMPUTER_NAME_FORMAT

You can see that the function need 2 params and you are using one, right?

I know.
But how do i define that.

I tried several things like

SetComputerName(t "ComputerNamePhysicalDnsHostname" , t "$ComputerName") i .r0'



SetComputerName(${ComputerNamePhysicalDnsHostname} , t "$ComputerName") i .r0'

But that doesn't work.

$0 gives an error

I'm guessing that this will work:
SetComputerName(i 5 , t "$ComputerName") i .r0'
COMPUTER_NAME_FORMAT is an enumeration, and ComputerNamePhysicalDnsHostname is the 6th item.

-Stu

Afrow UK is right, it is an enumeration:

# ComputerNameNetBIOS 0

# ComputerNameDnsHostname 1

# ComputerNameDnsDomain 2

# ComputerNameDnsFullyQualified 3

# ComputerNamePhysicalNetBIOS 4

# ComputerNamePhysicalDnsHostname 5

# ComputerNamePhysicalDnsDomain 6

# ComputerNamePhysicalDnsFullyQualified 7

Better use SetComputerNameEx. Try to set with ComputerNamePhysicalNetBIOS and ComputerNamePhysicalDnsHostname. If you get an error then use SetComputerName. Something like this:

...

System::Call 'kernel32.dll::SetComputerNameExA(i 4,t "$ComputerName")i.r1'

System::Call 'kernel32.dll::SetComputerNameExA(i 5,t "$ComputerName")i.r1'

StrCmp $1 0 +1 +2

System::Call 'kernel32.dll::SetComputerNameA(t "$ComputerName")i .r1'

...

The above code was generated from the example shown here.
CF

System::Call 'kernel32.dll::SetComputerNameExA(i 5,t "$ComputerName")i.r1'

This one works.
thx