I've got the following problem. I need to block any event in a form while a separate thread is working.

I've tried to use

form.Cursor = Cursors.WaitCursor;

but it doesn't work since I can close the form. Of course there's a way to make the form disabled but it's not good solution for me. Any other suggestions?

Do you mean, you don't want the user to click on any button on the form? cause if so, the disabled is a good option, antoher option is to hold a flag (acceptEvent) on the form, and on the thread start, set it to false, and on the events handler use:

public void button_Click(object sender, EventArgs)

{

if(acceptEvent)

{

// handle the event.

}

}

Thanks for your response. I've already had flag but I don't like it cos it makescode more complex. I hoped to get something like this:

Application.AcceptEvents = false;

....

Application.AcceptEvents = true;

it looks simpler and I don't need to provide each event handler with a special code.

What you call AcceptEvents is the Enabled property. That's how you prevent a Form from being accessible. Why doesnt that work for you? And if you dont want the form to handle events, why are you doing your other work in a separate thread?

You can do something similar to this using the IMessageFilter interface.

You can look at an example I've posted on my blog at http://saguiitay.wordpress.com/2006/01/19/filtering-win32-messages-of-a-form/

The idea is just to pre-process all the messages before they arrive to the form.