pinvoke RegFlushKey

[Guest]

I am having problems pinvoking the RegFlushKey function to flush my Hive registry, i keep getting a System.NotSupported Exception when i call it. Am i doing something wrong? Here is the code

Const HKEY_LOCAL_MACHINE = &H8000000
Private Declare Function RegFlushKey Lib "coredll.dll" (ByVal hKey As Long) As Lon

dim r as Long = RegFlushKey(HKEY_LOCAL_MACHINE)

 

[Paul G. Tobey [eMVP]]

I'm not sure what the problem is. It *is* in coredll.dll.

Paul T.

I am having problems pinvoking the RegFlushKey function to flush my Hive

registry, i keep getting a System.NotSupported Exception when i call it. Am
i doing something wrong? Here is the code:

 

[Peter Foot [MVP]]

In .net the hKey and return value are 32bit Integers:-
Private Declare Function RegFlushKey Lib "coredll.dll" (ByVal hKey As
Integer) As Integer

A Long is a 64bit integer and cannot be marshalled by value.

Peter

 

[Maarten Struys, eMVP]

The problem is in the return value. When P/Invoking to native code the .NET
CF only allows 32 bit values. If you declare the function As Integer it
should work.


--
Maarten Struys, eMVP
PTS Software bv

www.opennetcf.org | www.dotnetfordevices.com

 

[Paul G. Tobey [eMVP]]

Of course! Both the parameter and the return value types are wrong. Nice
catch!

Paul T.

 

[Guest]

Yep! that fixed the problem, thanks!