Determining visibility of various "special" windows 8 windows

Question

There appear to be several windows in windows 8 that are "special" in that they show as WS_VISIBLE, but they are not actually always visible. This includes windows such as the areas in the corners of the screen in desktop mode that do different things such as show the "metro" style clock and charm bar, the charm bar itself, the clock itself, and several other windows of this variety that appear to be related to metro in some way.

Is there any way to determine if a window is one of these special windows 8 windows or not? Or whether they are truly "visible", as the style seems to be lying to us a little.

These are some examples of the window classes we've seen:

"EdgeUiInputWndClass"
"TaskListThumbnailWnd"
"LauncherTipWndClass"
"SearchPane"
"ImmersiveLauncher"
"Touch Tooltip Window"
"Windows.UI.Core.CoreWindow"
"Immersive Chrome Container":
"ImmersiveBackgroundWindow"
"Frame Tab"
"NativeHWNDHost"
"Snapped Desktop"
"ModeInputWnd"
"MetroGhostWindow"
"Shell_Dim"
"Shell_Dialog"
"ApplicationManager_ImmersiveShellWindow"