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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2024 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_SCR_SPECIAL
#define BRLTTY_INCLUDED_SCR_SPECIAL
#include "scr_internal.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
extern void beginSpecialScreens (void);
extern void endSpecialScreens (void);
typedef enum {
SCR_FROZEN,
SCR_MENU,
SCR_HELP,
} SpecialScreenType;
extern int activateSpecialScreen (SpecialScreenType type);
extern void deactivateSpecialScreen (SpecialScreenType type);
extern int haveSpecialScreen (SpecialScreenType type);
extern int isSpecialScreen (SpecialScreenType type);
extern int constructHelpScreen (void);
extern int addHelpPage (void);
extern unsigned int getHelpPageCount (void);
extern unsigned int getHelpPageNumber (void);
extern int setHelpPageNumber (unsigned int number);
extern int clearHelpPage (void);
extern int addHelpLine (const wchar_t *characters);
extern unsigned int getHelpLineCount (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_SCR_SPECIAL */
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