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Annotation of researchv10dc/630/man/src/p_man/man3/jrectf.3l, revision 1.1

1.1     ! root        1: .ds ZZ DEVELOPMENT PACKAGE
        !             2: .TH JRECTF 3L "630 MTG"
        !             3: .XE "jrectf()"
        !             4: .SH NAME  
        !             5: jrectf \- rectangle function on display
        !             6: .SH SYNOPSIS
        !             7: .B #include <dmd.h>
        !             8: .sp
        !             9: .B void jrectf (r, f) 
        !            10: .br 
        !            11: .B Rectangle r;
        !            12: .br
        !            13: .B Code f;
        !            14: .SH DESCRIPTION
        !            15: The
        !            16: .I jrectf
        !            17: function
        !            18: performs the action specified by the Code
        !            19: .I f
        !            20: on the Rectangle
        !            21: .I r
        !            22: in the display bitmap.
        !            23: The Rectangle
        !            24: .I r
        !            25: is in window coordinates.
        !            26: .SH EXAMPLE
        !            27: The following subroutine will ``doodle'' on the screen using a Rectangle,
        !            28: whose coordinates are scaled to the window.
        !            29: .PP
        !            30: .RS 3
        !            31: .ft CM
        !            32: .nf
        !            33: #include <dmd.h>
        !            34: 
        !            35: Point add();
        !            36: 
        !            37: rectdoodle()
        !            38: {
        !            39:      Rectangle r;
        !            40:      Point s;
        !            41: 
        !            42:      s.x = 16;
        !            43:      s.y = 16;
        !            44:      request (MOUSE);
        !            45:      for (;;) {
        !            46:           wait(MOUSE)
        !            47:           r.origin = mouse.jxy;
        !            48:           r.corner = add (r.origin, s);
        !            49:           if ( button3() )
        !            50:              break;
        !            51:           if ( button1() )
        !            52:              jrectf (r, F_STORE);
        !            53:           if ( button2() )
        !            54:              jrectf (r, F_CLR);
        !            55:      }
        !            56: }
        !            57: .fi
        !            58: .ft R
        !            59: .RE
        !            60: .SH SEE ALSO
        !            61: globals(3R), rectf(3R), structures(3R), transform(3R/3L).

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