Re: [ft] two puzzled function

[Werner LEMBERG]

>     handle->preload = !!preload;
>
>  Q1: why two '!' here ?

The first `!' inverts the value, the second `!' inverts again but
normalizes the value to `1'.  With other words, this is a cheap method
to map 0 to 0 and everything else to 1.

>     FTDemo_Set_Current_Size( handle, ( point_size * res + 36 ) / 72 );
>
>  Q2: what's the mean of: "( pt * res + 36 ) / 72" ?

this converts PS points to pixels, with proper rounding (this is the
`+36')


    Werner