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Annotation of researchv10dc/630/man/src/p_man/man3/jpoint.3l, revision 1.1.1.1

1.1       root        1: .ds ZZ DEVELOPMENT PACKAGE
                      2: .TH JPOINT 3L "630 MTG"
                      3: .XE "jpoint()"
                      4: .SH NAME
                      5: jpoint \- draw single pixel on display
                      6: .SH SYNOPSIS
                      7: .B #include <dmd.h>
                      8: .sp
                      9: .B void jpoint (p, f)
                     10: .br
                     11: .B Point p;
                     12: .br
                     13: .B Code f;
                     14: .SH DESCRIPTION
                     15: The
                     16: .I jpoint
                     17: function
                     18: sets the pixel at location
                     19: .I p
                     20: (in window coordinates)
                     21: in the display bitmap according to the Code
                     22: .IR f .
                     23: .SH EXAMPLE
                     24: The following routine can be used to ``doodle'' on the screen.
                     25: .PP
                     26: .RS 3
                     27: .ft CM
                     28: .nf
                     29: #include <dmd.h>
                     30: 
                     31: doodle()
                     32: {
                     33:       request (\s-1MOUSE\s+1);
                     34:       for ( ;; ) {
                     35:           wait (\s-1MOUSE\s+1)
                     36:           if( button3() )
                     37:              break;
                     38:           if( button2() )
                     39:              jpoint (mouse.jxy, \s-1F_STORE\s+1);
                     40:       }
                     41: }
                     42: .fi
                     43: .ft R
                     44: .RE
                     45: .SH SEE ALSO
                     46: globals(3R), point(3R), structures(3R), transform(3R/3L).

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