Re: How to tell what thread is current

I see.  So when InvokeRequired returns false, then the thread you're on
is the same thread for the form the control is currently a child of?

--
Patrick Steele
http://weblogs.asp.net/psteele



-----Original Message-----
From: Discussion forum for developers using Windows Forms to build apps
and controls [mailto:[email protected]] On Behalf Of
Peter Ritchie
Sent: Thursday, March 29, 2007 9:04 PM
To: [email protected]
Subject: Re: [DOTNET-WINFORMS] How to tell what thread is current


Windows only supports a child and a parent being created on the same
thread.

On Thu, 29 Mar 2007 17:24:57 -0400, Patrick Steele <[email protected]>
wrote:

>Actually, InvokeRequired will tell you if you're currently in the
>thread the *created the control*, not the thread that owns the form.
>
>--
>Patrick Steele
>http://weblogs.asp.net/psteele
>
>
>
>-----Original Message-----
>From: Discussion forum for developers using Windows Forms to build apps

>and controls [mailto:[email protected]] On Behalf Of
>Nassar, Anthony
>Sent: Thursday, March 29, 2007 5:15 PM
>To: [email protected]
>Subject: Re: [DOTNET-WINFORMS] How to tell what thread is current
>
>
>You can use the boolean property Control.InvokeRequired on the form;
>that will tell you if you're currently in the thread that owns the
>form. That's really all you want to know, isn't it? I hope it's not
>patronizing to point you to
>http://msdn2.microsoft.com/en-us/library/ms951089.aspx.
>
>-----Original Message-----
>From: Discussion forum for developers using Windows Forms to build apps

>and controls [mailto:[email protected]] On Behalf Of
>Kelly Baker
>Sent: Thursday, March 29, 2007 5:11 PM
>To: [email protected]
>Subject: Re: [DOTNET-WINFORMS] How to tell what thread is current
>
>I need to know if the current thread is the same as the host form (the
>form in which my control is loaded).  This function raises an event
>which is used to update controls on the form, and if it is not the same

>thread as the host form, I need to know.
>
>I am using a BackgroundWorker for my threading, and if I am not in the
>same thread as the form, I can call the UpdateProgress method of the
>BackgroundWorker.
>
>
>
>Why do you need to know this?
>
>And how do you define the "host" form?  An app could have several forms

>visible at a time -- which one is the host form?  And what about
>mutiple UI threads?
>
>What is it you're trying to accomplish that needs this information?
>
>--
>Patrick Steele
>http://weblogs.asp.net/psteele
>
>
>
>-----Original Message-----
>From: Discussion forum for developers using Windows Forms to build apps

>and controls [mailto:[email protected]] On Behalf Of
>Kelly Baker
>Sent: Thursday, March 29, 2007 4:53 PM
>To: [email protected]
>Subject: [DOTNET-WINFORMS] How to tell what thread is current
>
>
>I have a function in a control that may be called within different
>threads.  How can I tell if it is on the same thread as the host form?