"Automatically adjust clock for daylight saving changes"

  • Thread starter Thread starter BobAchgill
  • Start date Start date
BobAchgill said:
Is there a way to know if this is set to true on the Windows Time Zone tab?
Click to expand...

Through the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation

Value: DisableAutoDaylightTimeSet

A value of 1 means the setting is disabled otherwise the value didn't
exist or is 0.

Thorsten Doerfler
 
I tried this see below but got this Error
Unhandled Win32 Exception


Imports System
Imports Microsoft.Win32

Put this in the Form1_Load...

MsgBox("DisableAutoDaylightTimeSet = " +
Registry.LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\TimeZoneInformation").GetValue("DisableAutoDaylightTimeSet"))
 
BobAchgill said:
I tried this see below but got this Error
Unhandled Win32 Exception


Imports System
Imports Microsoft.Win32

Put this in the Form1_Load...

MsgBox("DisableAutoDaylightTimeSet = " +
Registry.LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\TimeZoneInformation").GetValue("DisableAutoDaylightTimeSet"))
Click to expand...

WFM. WinXP SP2. .NET 2.0 SP1

Thorsten Doerfler
 
Thorsten,

So you are saying that my syntax was exactly correct but I need to these
prerequisites ...???

WFM. WinXP SP2. .NET 2.0 SP1

What is WFM??

Thanks!

Bob
 
BobAchgill said:
So you are saying that my syntax was exactly correct but I need to these
prerequisites ...???
Click to expand...

The syntax is correct and doesn't cause an Win32 Exception here. I
would not say that the code will only working on WinXP SP2, it was the
only system I tried that. Maybe it would be easier, if you tell us,
what is your system configuration, where you get the Exception.

Normally the code shouldn't throw an Win32 Exception, only an
NullReference Exception, when the Value didn't exists. Maybe better,
if you use a default value:

MsgBox("DisableAutoDaylightTimeSet = " &
Registry.LocalMachine.OpenSubKey( _
"SYSTEM\CurrentControlSet\Control\TimeZoneInformation" _
).GetValue("DisableAutoDaylightTimeSet", 0).ToString)
WFM.

What is WFM??
Click to expand...

Works for me.

Thorsten Doerfler
 
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