Radix cross Linux package tools

diff --git a/src/dialog-ui.h b/src/dialog-ui.h
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+++ b/src/dialog-ui.h
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+
+/**********************************************************************
+
+  Copyright 2019 Andrey V.Kosteltsev
+
+  Licensed under the Radix.pro License, Version 1.0 (the "License");
+  you may not use this file  except  in compliance with the License.
+  You may obtain a copy of the License at
+
+     https://radix.pro/licenses/LICENSE-1.0-en_US.txt
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied.
+
+ **********************************************************************/
+
+#ifndef _DIALOG_UI_H_
+#define _DIALOG_UI_H_
+
+#include <dialog.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  /*************************************************
+    Ruler: 68 characters + 2 spaces left and right:
+
+                           | ----handy-ruler----------------------------------------------------- | */
+
+extern int info_box( const char *title, const char *message, int height, int sleep, int clear_screen );
+
+extern int info_pkg_box( const char *title, const char *pkgname, const char *pkgver, const char *priority,
+                         const char *message, int height, int sleep, int clear_screen );
+
+extern int ask_install_box( const char *title, const char *pkgname, const char *pkgver, const char *priority,
+                            const char *message, int height, int sleep, int clear_screen );
+
+extern int ask_remove_box( const char *title, const char *pkgname, const char *pkgver,
+                           const char *message, int height, int sleep, int clear_screen );
+
+extern int ask_reinstall_box( const char *title, const char *pkgname, const char *pkgver,
+                              const char *message, int height, int sleep, int clear_screen );
+
+extern int ask_update_box( const char *title, const char *pkgname, const char *pkgver, const char *priority,
+                           const char *message, int height, int sleep, int clear_screen );
+
+extern int select_packages_box( DIALOG_LISTITEM *items, int items_num, int sleep, int clear_screen );
+
+extern void show_install_dlg_progress( int percent );
+
+
+#ifdef __cplusplus
+}  /* ... extern "C" */
+#endif
+
+#endif /* _DIALOG_UI_H_ */