An implementation of IWin32Window that will own the task dialog.
Return Value
The task dialog result (see also the DialogResult property).
Remarks
You can use the owner parameter to specify a particular object, which implements the IWin32Window interface, that will serve as the dialog box's top-level window and owner. A task dialog is a modal dialog box, which means no input (keyboard or mouse click) can occur except to objects on the modal form. The program must hide or close a modal form (typically in response to some user action) before input to another form can occur.