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researchv10 Dan Cross

.ds ZZ DEVELOPMENT PACKAGE
.TH JTEXTURE 3L "630 MTG"
.XE "jtexture()"
.SH NAME
jtexture \- draw Texture in Rectangle on display
.SH SYNOPSIS
.B #include <dmd.h>
.sp
.B void jtexture (r, t, f)  
.br
.B Rectangle r; 
.br
.B Texture16 \(**t;
.br
.B Code f;
.sp
.B Texture16 T_grey, T_lightgrey, T_darkgrey;
.sp
.B Texture16 T_black, T_white, T_background, T_checks;
.SH DESCRIPTION
The
.I jtexture
function
fills the Rectangle
.I r
in the display Bitmap
with Texture16
.I t
using function Code
.IR f .
The Rectangle
.I r
is in window coordinates.  The Texture16s listed above are predefined.
.SH EXAMPLE
The following routine allows one to doodle with a Texture16.
.PP
.RS 3
.ft CM
.nf
#include <dmd.h>

Point add();

main()
{
    Rectangle r;
    Point s;

    s.x = 16;
    s.y = 16;
    request (\s-1MOUSE\s+1);
    for (;;) {
        wait(\s-1MOUSE\s+1)
        r.origin = mouse.jxy;
        r.corner = add (r.origin, s);
        if ( button3() )
          break;
        if ( button1() )
          jtexture (r, &T_grey, F_STORE);
        if ( button2() )
          jtexture (r, &T_grey, F_CLR);
    }
}
.fi
.ft R
.SH SEE ALSO
globals(3R), structures(3R), texture(3R), transform(3R/3L).

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