diff --git a/bin/stdio.js b/bin/stdio.js
index e0e1d9d..3b1ebcc 100644
--- a/bin/stdio.js
+++ b/bin/stdio.js
@@ -15,6 +15,8 @@ const rl = readline.createInterface({
   prompt: ''
 })
 
+let currentWindow = null
+
 let send = _ => _
 
 const setSend = fn => {
@@ -29,8 +31,24 @@ const onInit = () => {
   rl.resume()
 }
 
-const onUpdateContent = messages =>
-  messages.text.forEach(({ append, content }) => {
+const onUpdateWindows = windows => {
+  currentWindow = windows
+    .filter(x => x.type === 'buffer')
+    .slice(-1)[0]
+}
+
+const onUpdateInputs = type => {
+  type
+    ? attach_handlers(type)
+    : detach_handlers()
+}
+
+const onUpdateContent = allMessages => {
+  const messages = allMessages.filter(
+    content => content.id === currentWindow.id
+  )[0]
+
+  return messages.text.forEach(({ append, content }) => {
     if (!append) {
       stdout.write('\n')
     }
@@ -53,17 +71,6 @@ const onUpdateContent = messages =>
       })
     }
   })
-
-const onUpdateInputs = type => {
-  type
-    ? attach_handlers(type)
-    : detach_handlers()
-}
-
-const onExit = () => {
-  detach_handlers()
-  rl.close()
-  stdout.write('\n')
 }
 
 const onDisable = disable =>
@@ -71,6 +78,12 @@ const onDisable = disable =>
     ? detach_handlers()
     : attach_handlers()
 
+const onExit = () => {
+  detach_handlers()
+  rl.close()
+  stdout.write('\n')
+}
+
 const onFileNameRequest = (tosave, usage, gameid, callback) => {
   stdout.write('\n')
   rl.question(
@@ -104,7 +117,7 @@ const handle_char_input = (str, key) => {
     str ||
     key.name.replace(/f(\d+)/, 'func$1')
 
-  send(res)
+  send(res, currentWindow)
 }
 
 const attach_handlers = type => {
@@ -129,14 +142,15 @@ const handle_line_input = line => {
   }
   detach_handlers()
 
-  send(line)
+  send(line, currentWindow)
 }
 
 module.exports.handlers = {
   onInit,
+  onUpdateWindows,
+  onUpdateInputs,
   onUpdateContent,
   onDisable,
-  onUpdateInputs,
   onFileNameRequest,
   onFileRead,
   onFileWrite,
diff --git a/src/cheapGlkOte.js b/src/cheapGlkOte.js
index 73c9657..fbcb931 100644
--- a/src/cheapGlkOte.js
+++ b/src/cheapGlkOte.js
@@ -8,28 +8,20 @@ class CheapGlkOte extends GlkOte {
   constructor(handlers, loggers) {
     super()
 
-    this.window = null
     this.current_input_type = null
 
     this.handlers = handlers
   }
 
-  sendFn(message) {
+  sendFn(message, window) {
     this.send_response(
       this.current_input_type,
-      this.window,
+      window,
       message)
     this.current_input_type = null
   }
 
   init(iface) {
-    /* Only one window can be opened */
-    const glk_window_open = iface.Glk.glk_window_open
-    iface.Glk.glk_window_open = (splitwin, ...args) =>
-      splitwin
-        ? null
-        : glk_window_open(splitwin, ...args)
-
     this.handlers.onInit()
     super.init(iface)
   }
@@ -62,11 +54,7 @@ class CheapGlkOte extends GlkOte {
   }
 
   update_content(messages) {
-    const filtered = messages.filter(
-      content => content.id === this.window.id
-    )[0]
-
-    this.handlers.onUpdateContent(filtered)
+    this.handlers.onUpdateContent(messages)
   }
 
   exit() {
@@ -86,12 +74,10 @@ class CheapGlkOte extends GlkOte {
     this.handlers.onDisable(disable)
   }
 
-  update_windows(data) {
-    data.forEach(win => {
-      if (win.type === 'buffer') {
-        this.window = win
-      }
-    })
+  update_windows(windows) {
+    if (windows.length) {
+      this.handlers.onUpdateWindows(windows)
+    }
   }
 
   log(message) {
diff --git a/src/index.js b/src/index.js
index 6e4e85c..b832a4d 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,9 +5,10 @@ const noop = () => void null
 
 const noopHandlers = [
   'onInit',
+  'onUpdateWindows',
+  'onUpdateInputs',
   'onUpdateContent',
   'onDisable',
-  'onUpdateInputs',
   'onFileNameRequest',
   'onFileRead',
   'onFileWrite',