	Name	Description
	AssignHandle	(Inherited from System.Windows.Forms.NativeWindow)
	ClosePopup	Called when the popup is being hidden.
	CreateHandle	Creates a window and its handle with the specified creation parameters. (Inherited from System.Windows.Forms.NativeWindow)
	CreateObjRef	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from System.MarshalByRefObject)
	DefWndProc	Invokes the default window procedure associated with this window. (Inherited from System.Windows.Forms.NativeWindow)
	DestroyHandle	Destroys the window and its handle. (Inherited from System.Windows.Forms.NativeWindow)
	GetLifetimeService	Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from System.MarshalByRefObject)
	InitializeLifetimeService	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from System.MarshalByRefObject)
	ReleaseHandle	Releases the handle associated with this window. (Inherited from System.Windows.Forms.NativeWindow)
	ShowPopup	Shows the specified Form as a popup window, keeping the Owner's title bar active and preparing to cancel the popup should the user click anywhere outside the popup window. Typical code to use this message is as follows: `frmPopup popup = new frmPopup(); Point location = this.PointToScreen(new Point(button1.Left, button1.Bottom)); popupHelper.ShowPopup(this, popup, location);` Put as much initialization code as possible into the popup form's constructor, rather than the System.Windows.Forms.Form.Load event as this will improve the visual appearance.

	Name	Description
	Finalize	Releases the resources associated with this window. (Inherited from System.Windows.Forms.NativeWindow)
	MemberwiseClone	Overloaded. Creates a shallow copy of the current System.MarshalByRefObject object. (Inherited from System.MarshalByRefObject)
	OnHandleChange	Specifies a notification method that is called when the handle for a window is changed. (Inherited from System.Windows.Forms.NativeWindow)
	OnPopupCancel	Raises the PopupCancel event.
	OnPopupClosed	Raises the PopupClosed event.
	OnThreadException	When overridden in a derived class, manages an unhandled thread exception. (Inherited from System.Windows.Forms.NativeWindow)
	WndProc	Overridden. Subclasses the owning form's existing Window Procedure to enables the title bar to remain active when a popup is show, and to detect if the user clicks onto another application whilst the popup is visible.

	Name	Description
	PopupCancel	Raised when the Popup Window is about to be cancelled. The PopupCancelEventArgs.Cancel property can be set to `true` to prevent the form from being cancelled.
	PopupClosed	Raised when the popup form is closed.

Reference