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Click outside wpf window without losing focus

I was wondering if there is a window property, for a wpf application, that disables any actions outside of the window. For example, when you open a message dialog and click outside of it, the message dialog background flashes. Kind of saying you can't do any actions outside of the message dialog untill you click the 'OK' button. I want that implemented in some windows that I open in a program i'm developing but can't seem to find any info on it. Looking for ways on how i might approach this.

Try ShowDialog() instead of Show()
Opens a window and returns only when the newly opened window is closed.
Window childWindow = new Window();
childWindow.ShowDialog();
Note that it will prevent clicks only on parent window(s). Clicks on other applications or Desktop can't be prevented by the Dialog.

Setting ICDBurn dialog to modal or always-on-top

I have a WPF application using the ICDBurn interface to burn some data to a disk.
After calling ICDBurn::Burn a dialog is shown and the user should not be able to continue working with the application until this dialog is handled, which is not the default behaviour.
I tried passing both IntPtr.Zero as well as the applications main window handle as a parent to ICDBurn::Burn, but the result was the same.
So I want this dialog to be modal, but I would settle for setting this dialog to always on top as well.
As a first step, I figured I would need a handle to the dialog's window. I tried EnumChildWindows but did not find the dialog there.
How can I set this dialog to modal?
Edit:
based on the comment from IInspectable, I maybe passed the wrong window handle to Burn. I am using new WindowInteropHelper(Application.Current.MainWindow).Handle and I think I use no other windows in the application.

Ahh, WPF...
To get ICDBurn::Burn to correctly open as a modal dialog, it has to be called on the UI Thread (using Application.Current.MainWindow.Dispatcher).

Pop-up window while creating a webpage

I'm using Visual Studio 2010, and i'm creating a website using C#.
I'm opening a pop-up when user clicks a button.
Now i want to perform the task mentioned below:
When a pop-up opens i do not want user to click anywhere else. I mean
he should be able to click or do any activity in the pop-up window
ONLY, whereas he shouldn't be able to do anything in the parent
window until and unless he closes the pop-up.
How to achieve this?

Depends on how you are creating the website. C# is the server-side language and can be used in ASP.Net websites as well as MVC.
If ASP.Net, Ajax Control Toolkit has a modal popup:
http://www.asp.net/ajaxlibrary/ajaxcontroltoolkitsamplesite/modalpopup/modalpopup.aspx
If MVC, jQuery has a modal popup:
http://jqueryui.com/dialog/

WPF WebBrowser control. need to prevent it from closing within an app

I have a WPF where I am implementing a WebBrowser control and I have a list of objects that when i select them it changes the url binding for the webBrowser control and all is well.
However, if the web page I am on tries to close the Webpage, a dialog pops up where you can hit yes or no to close the "window" (the WebBrowser control)
If the user hits "yes" then the web browser control is closed and exceptions are thrown when you try to select something else in the list because the window doesn't exist anymore.
The webbrowser control does not have a method for closing exposed where i can get to it and I was able to override the "Window.Close()" method but that also prevented me from closing the main app window.
I have tried inheriting from the WebBrowser class but it is sealed so I can't inherit to add event handlers or override methods such as "Close()" or events such as "OnClosing()"
I have no control over the website because it is a third party product.
Also, the WebBrowser control is not cancelling navigation when exiting.
so my question is
A. Is it possible to intercept the dialog and always answer "no"?
or
B. Is there another way to prevent the WebBrowser control from closing even if the person says "yes" to the dialog?

So, I ended up putting the control in it's separate view and then constructing and destroying the view as a dialogue

Once I had to solve a similar situation. It was a Delphi application, with an embedded TWebBrowser component, which is essentially the same thing as the WebBrowser of .NET. The software automatically clicked on elements of the webpage, and there was a case when after the click a confirm dialog popped up. The simplest way to press the OK button automatically was to call FindWindow with the parameters of the confirm dialog, and use the window handle to send it an Enter key press by calling SendInput. I think in your case an Escape key press is needed.

How to access a file browser opened by a WebBrowser control?

I am writing a C# WinForms application that fills a form automatically on an existing website.
Let's consider http://tinypic.com/ as an example to illustrate my problem.
When the user clicks the Browse button, a file browser dialog opens as a modal dialog. In my case, the modal window is opened from code and I own the form and the WebBrowser control.
How can I access this modal window programmatically and paste/enter my filename into it ?

I don't know particularly, but I do believe its possible (even if you have to hook the OS)
You might want to check TwebstLib for such functionality