Gets or sets the position of the window when first shown.
Assembly: PresentationFramework (in PresentationFramework.dll)
Setting WindowStartupLocation to Manual causes a window to be positioned according to its Left and Top property values. If either the Left or Top properties aren't specified, their values are determined by Windows.
Setting CenterScreen causes a window to be positioned in the center of the screen that contains the mouse cursor.
Setting WindowStartupLocation to CenterOwner causes a window to be positioned in the center of its owner window (see Owner), if specified. The owner window can be either another WPF window or a non-WPF window.
You cannot set or get the value of this property when a window is hosted in a browser.
Available since 3.0