diff --git a/src/Manager.ahk b/src/Manager.ahk
index b70ec9b..7f992d3 100644
--- a/src/Manager.ahk
+++ b/src/Manager.ahk
@@ -110,7 +110,7 @@ Manager_applyRules(wndId, ByRef isManaged, ByRef m, ByRef tags, ByRef isFloating
   WinGetClass, wndClass, ahk_id %wndId%
   WinGetTitle, wndTitle, ahk_id %wndId%
   WinGetPos, wndX, wndY, wndWidth, wndHeight, ahk_id %wndId%
-  If (wndClass Or wndTitle) And Not (wndX < -4999) And Not (wndY < -4999) {
+  If (wndClass Or wndTitle) {
     Loop, % Config_ruleCount {
       ;; The rules are traversed in reverse order.
       i := Config_ruleCount - A_Index + 1
@@ -381,9 +381,6 @@ Manager_manage(preferredMonitor, preferredView, wndId)
       tags := 1 << (preferredView - 1)
   }
 
-  If Window_isElevated(wndId)
-    isManaged := 0
-
   a := Manager__setWinProperties( wndId, isManaged, m, tags, isDecorated, isFloating, hideTitle, action)
 
   ; Do view placement.
diff --git a/src/Window.ahk b/src/Window.ahk
index beb21c0..7a4d47f 100644
--- a/src/Window.ahk
+++ b/src/Window.ahk
@@ -110,6 +110,18 @@ Window_isHung(wndId) {
     Return, 0
 }
 
+Window_isNotVisible(wndId) {
+  WS_VISIBLE = 0x10000000
+  WinGet, wndStyle, Style, ahk_id %wndId%
+  If (wndStyle & WS_VISIBLE) {
+    WinGetPos, wndX, wndY, wndW, wndH, ahk_id %wndId%
+    hasDimensions := wndW And wndH
+    isOnMonitor := Monitor_get(wndX + 5, wndY + 5) Or Monitor_get(wndX + wndW - 5, wndY + 5) Or Monitor_get(wndX + wndW, wndY + wndH - 5) Or Monitor_get(wndX + 5, wndY + wndH - 5)
+    Return, (Not hasDimensions Or Not isOnMonitor)
+  } Else
+    Return, True
+}
+
 Window_isPopup(wndId) {
   WS_POPUP = 0x80000000
   WinGet, wndStyle, Style, ahk_id %wndId%