OpenEvent(...)

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Owe Armandt - 07 Jan 2004 21:24 GMT

I was using an event between to apps in Win32, one creating a named event
(like CreateEvent(NULL, FALSE, FALSE, "EVENTNAME"); ) and the other doing
OpenEvent(EVENT_ALL_ACCESS, TRYUE, "EVENTNAME");. This way one app could
signal the other in a convinient way.

Now one of the apps will be .NET, the one that will do the OpenEvent(..),
the problem is I cannot find out how to do the OpenEvent(...) bit.

Anybody knows???

Owe Armandt

Reply to this Message

Mattias Sj?gren - 08 Jan 2004 02:46 GMT

Owe,

>Now one of the apps will be .NET, the one that will do the OpenEvent(..),
>the problem is I cannot find out how to do the OpenEvent(...) bit.
>
>Anybody knows???

[DllImport("kernel32.dll", CharSet=CharSet.Auto)]
static extern IntPtr OpenEvent(uint dwDesiredAccess, bool
bInheritHandle, string lpName);

[DllImport("kernel32.dll")]
static extern bool CloseHandle(IntPtr hObject);

const uint EVENT_ALL_ACCESS = 0x1F0003;

...

IntPtr hEvent = OpenEvent(EVENT_ALL_ACCESS, true, "EVENTNAME");
... use event ...
CloseHandle(hEvent);

Mattias

Signature

Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Reply to this Message

Owe Armandt - 10 Jan 2004 14:33 GMT

So you mean there is no .NET way of doing this other than using unmanaged
code by importing the functions like this??

Owe

> Owe,
>
[quoted text clipped - 24 lines]
> http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
> Please reply only to the newsgroup.

Reply to this Message

"Ying-Shen Yu[MSFT]" - 13 Jan 2004 02:44 GMT

Hi Owe,

If you want to sync with other unmanaged apps, PInvoke is needed, since as
I know .NET does not provide a way to create/open a named event.
If you want to sync with managed apps, it might be better to use some other
mechanism, such as .NET Remoting.
Thanks!

Best regards,

Ying-Shen Yu [MSFT]
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties and confers no rights.
This mail should not be replied directly, "online" should be removed before
sending.

Reply to this Message

OpenEvent(...)

Free Magazines