Method Raise
Raise()
Raises the window to the top of the window hierarchy (Z-order). This function only works for top level windows.
public virtual void Raise()Remarks
Notice that this function only requests the window manager to raise this window to the top of Z-order. Depending on its configuration, the window manager may raise the window, not do it at all or indicate that a window requested to be raised in some other way, e.g.by flashing its icon if it is minimized.