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xcb_poly_segment(3)              XCB Requests              xcb_poly_segment(3)




NAME

       xcb_poly_segment - draw lines


SYNOPSIS

       #include <xcb/xproto.h>

   Request function
       xcb_void_cookie_t xcb_poly_segment(xcb_connection_t *conn,
              xcb_drawable_t drawable, xcb_gcontext_t gc,
              uint32_t segments_len, const xcb_segment_t *segments);


REQUEST ARGUMENTS

       conn      The XCB connection to X11.

       drawable  A drawable (Window or Pixmap) to draw on.

       gc        The graphics context to use.

                 TODO: document which attributes of a gc are used

       segments_len
                 The number of xcb_segment_t structures in segments.

       segments  An array of xcb_segment_t structures.


DESCRIPTION

       Draws multiple, unconnected lines. For each segment, a line is drawn
       between (x1, y1) and (x2, y2). The lines are drawn in the order listed
       in the array of xcb_segment_t structures and does not perform joining
       at coincident endpoints. For any given line, a pixel is not drawn more
       than once. If lines intersect, the intersecting pixels are drawn multi-
       ple times.

       TODO: include the xcb_segment_t data structure

       TODO: an example


RETURN VALUE

       Returns an xcb_void_cookie_t. Errors (if any) have to be handled in the
       event loop.

       If you want to handle errors directly with xcb_request_check instead,
       use xcb_poly_segment_checked. See xcb-requests(3) for details.


ERRORS

       xcb_drawable_error_t
                 The specified drawable does not exist.

       xcb_g_context_error_t
                 The specified gc does not exist.

       xcb_match_error_t
                 TODO: reasons?


SEE ALSO

       xcb-requests(3)


AUTHOR

       Generated from xproto.xml. Contact xcb@lists.freedesktop.org for cor-
       rections and improvements.



X Version 11                      libxcb 1.14              xcb_poly_segment(3)

xorg-libxcb 1.14 - Generated Sat Mar 28 13:16:24 CDT 2020
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