io_readxy.c

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/* console SCREEN() function (cursor position query) */

#include "../fb.h"
#include "fb_private_console.h"

FBCALL unsigned int fb_ConsoleReadXY( int x, int y, int colorflag )
{
        unsigned char *buffer;

        if( !__fb_con.inited )
                return 0;

        BG_LOCK( );
        fb_hRecheckConsoleSize( );
        BG_UNLOCK( );

        if ((x < 1) || (x > __fb_con.w) || (y < 1) || (y > __fb_con.h))
                return 0;

        if (colorflag)
                buffer = __fb_con.attr_buffer;
        else
                buffer = __fb_con.char_buffer;

        return (unsigned int)buffer[((y - 1) * __fb_con.w) + x - 1];
}