This layer is reserved for the desktop background
This layer is used for Canvas components
The object does not have a layer
This layer is used for layered components
This layer is reserved for future use.
This layer is used for popup components, such as menus
This layer is normally used for components
This layer is used for toplevel windows.
Describes the layer of a component
These enumerated "layer values" are used when determining which UI rendering layer a component is drawn into, which can help in making determinations of when components occlude one another.