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 multiple 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
corrections and improvements.

X Version 11 libxcb 1.16.1 xcb_poly_segment(3)