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Microsoft OS/2 SDK PM 08-08-1988

/* -----------------------------------------------------------------*\
/*	VIO File Browser Demo Headers
/*	Version 1.0
/*	Created by Microsoft Corp. 1988
/* -----------------------------------------------------------------*/

#define WINDOW 0

/* ------------------------------------ */
/* forward declarations 		*/
/* ------------------------------------ */

/* -- top-level */
void cdecl main( int, char *[] );
SHORT Initialize( int, char *[]);
SHORT ReadFile( void );
void ManipulateFile( void );

/* -- line-level    */
SHORT StoreLine( char * );
SHORT RetrieveLine( char ** , USHORT );

/* -- screen	*/
void DisplayScreen( USHORT TopLine, BOOL force);
void ClearScreen( void );
void VidRefresh ( USHORT LineFrom, USHORT NumLines, USHORT VidRowStart);
void ScrollDown(int Nlines);
void ScrollUp(int Nlines);
VOID ExecuteAction( CHAR ch);

/* -- user input */
VOID UserLoop( VOID );
UCHAR GetScanCode( void );
CHAR GetKbdInput( void );

/* ------------------------------------ */
/* constant definitions 		*/
/* ------------------------------------ */
#define NUM_DATA_LINES 4096
#define HIGHEST_HSCROLL 128
#define HSCROLL_PAGESIZE 8
/* -- action codes		    */
/* -- not all are implemented yet   */
#define EXIT 10
#define LINE_UP 11
#define LINE_DOWN 12
#define PAGE_UP 13
#define PAGE_DOWN 14
#define CHAR_RIGHT 15
#define CHAR_LEFT 16
#define PAGE_RIGHT 17
#define PAGE_LEFT 18
#define GOTO_TOP 19
#define GOTO_BOTTOM 20
#define GOTO_LINE 21
#define GOTO_HSCROLL 22

#define MAX_START_LINE (HighestLine-Vid_Rows+1)

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