diff --git a/vncviewer/UserDialog.cxx b/vncviewer/UserDialog.cxx
new file mode 100644
index 0000000..992ea78
--- /dev/null
+++ b/vncviewer/UserDialog.cxx
@@ -0,0 +1,86 @@
+/* Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <FL/fl_ask.H>
+
+#include <rfb/util.h>
+#include <rfb/Password.h>
+#include <rfb/Exception.h>
+
+#include "i18n.h"
+#include "parameters.h"
+#include "UserDialog.h"
+
+using namespace rfb;
+
+UserDialog::UserDialog()
+{
+}
+
+UserDialog::~UserDialog()
+{
+}
+
+void UserDialog::getUserPasswd(char** user, char** password)
+{
+  CharArray passwordFileStr(passwordFile.getData());
+
+  assert(password);
+
+  if (!user && passwordFileStr.buf[0]) {
+    ObfuscatedPasswd obfPwd(256);
+    FILE* fp;
+
+    fp = fopen(passwordFileStr.buf, "r");
+    if (!fp)
+      throw rfb::Exception(_("Opening password file failed"));
+
+    obfPwd.length = fread(obfPwd.buf, 1, obfPwd.length, fp);
+    fclose(fp);
+
+    PlainPasswd passwd(obfPwd);
+    *password = passwd.takeBuf();
+
+    return;
+  }
+
+  if (!user) {
+    *password = strDup(fl_password(_("VNC authentication"), ""));
+    if (!*password)
+      throw rfb::Exception(_("Authentication cancelled"));
+
+    return;
+  }
+
+  fl_alert(_("NOT IMPLEMENTED!"));
+
+  *user = strDup("");
+  *password = strDup("");
+}
+
+bool UserDialog::showMsgBox(int flags, const char* title, const char* text)
+{
+  fl_message_title(title);
+  fl_message(text);
+
+  return false;
+}