io_pageset.c

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/* console 'screen , pg, pg' function */

#include "../fb.h"
#include "fb_private_console.h"
#include <dpmi.h>

int fb_ConsolePageSet ( int active, int visible )
{
        int res = __fb_con.active | (__fb_con.visible << 8);

        if( active >= 0 )
        {
                __fb_con.active = active;
        }

        if( visible >= 0 )
        {
                if( __fb_con.visible != visible )
                {
                __dpmi_regs regs;
                regs.h.ah = 0x05;
                regs.h.al = visible;
                __dpmi_int(0x10, &regs);

                        __fb_con.visible = visible;
                }
        }

        return res;
}