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diff --git a/xbmc/messaging/helpers/DialogOKHelper.h b/xbmc/messaging/helpers/DialogOKHelper.h
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+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include "utils/Variant.h"
+
+#include <array>
+#include <string>
+
+namespace KODI
+{
+namespace MESSAGING
+{
+namespace HELPERS
+{
+
+/*! \struct DialogOkMessage DialogHelper.h "messaging/helpers/DialogHelper.h"
+    \brief Payload sent for message TMSG_GUI_DIALOG_OK
+
+    \sa ShowOKDialogText
+    \sa ShowOKDialogLines
+*/
+struct DialogOKMessage
+{
+  CVariant heading; //!< Heading to be displayed in the dialog box
+  CVariant text;  //!< Body text to be displayed, this is mutually exclusive with lines below
+  std::array<CVariant, 3> lines;  //!< Body text to be displayed, specified as three lines. This is mutually exclusive with the text above
+  bool show = true; //!< bool to see if the dialog needs to be shown
+};
+
+/*!
+  \brief This is a helper method to send a threadmessage to update a Ok dialog text
+
+  \param[in]  heading           The text to display as the dialog box header
+  \param[in]  text              The text to display in the dialog body
+  \sa ShowOKDialogLines
+  \sa CGUIDialogOK::ShowAndGetInput
+  \sa DialogOKMessage
+*/
+void UpdateOKDialogText(CVariant heading, CVariant text);
+
+/*!
+  \brief This is a helper method to send a threadmessage to open a Ok dialog box
+
+  \param[in]  heading           The text to display as the dialog box header
+  \param[in]  text              The text to display in the dialog body
+  \return if it's confirmed
+  \sa UpdateOKDialogLines
+  \sa CGUIDialogOK::ShowAndGetInput
+  \sa DialogOKMessage
+*/
+bool ShowOKDialogText(CVariant heading, CVariant text);
+
+/*!
+  \brief This is a helper method to send a threadmessage to open a OK dialog box
+
+  \param[in]  heading           The text to display as the dialog box header
+  \param[in]  line0             The text to display on the first line
+  \param[in]  line1             The text to display on the second line
+  \param[in]  line2             The text to display on the third line
+  \return if it's confirmed
+  \sa ShowOKDialogText
+  \sa CGUIDialogOK::ShowAndGetInput
+  \sa DialogOKMessage
+*/
+bool ShowOKDialogLines(CVariant heading, CVariant line0, CVariant line1 = CVariant(),
+                                    CVariant line2 = CVariant());
+
+}
+}
+}