xcb_poly_segment(3)

1xcb_poly_segment(3)              XCB Requests              xcb_poly_segment(3)
2
3
4

NAME

6       xcb_poly_segment - draw lines
7

SYNOPSIS

9       #include <xcb/xproto.h>
10
11   Request function
12       xcb_void_cookie_t xcb_poly_segment(xcb_connection_t *conn,
13              xcb_drawable_t drawable, xcb_gcontext_t gc,
14              uint32_t segments_len, const xcb_segment_t *segments);
15

REQUEST ARGUMENTS

17       conn      The XCB connection to X11.
18
19       drawable  A drawable (Window or Pixmap) to draw on.
20
21       gc        The graphics context to use.
22
23                 TODO: document which attributes of a gc are used
24
25       segments_len
26                 The number of xcb_segment_t structures in segments.
27
28       segments  An array of xcb_segment_t structures.
29

DESCRIPTION

31       Draws multiple, unconnected lines. For each segment, a line is drawn
32       between (x1, y1) and (x2, y2). The lines are drawn in the order listed
33       in the array of xcb_segment_t structures and does not perform joining
34       at coincident endpoints. For any given line, a pixel is not drawn more
35       than once. If lines intersect, the intersecting pixels are drawn multi‐
36       ple times.
37
38       TODO: include the xcb_segment_t data structure
39
40       TODO: an example
41

RETURN VALUE

43       Returns an xcb_void_cookie_t. Errors (if any) have to be handled in the
44       event loop.
45
46       If you want to handle errors directly with xcb_request_check instead,
47       use xcb_poly_segment_checked. See xcb-requests(3) for details.
48

ERRORS

50       xcb_drawable_error_t
51                 The specified drawable does not exist.
52
53       xcb_g_context_error_t
54                 The specified gc does not exist.
55
56       xcb_match_error_t
57                 TODO: reasons?
58

AUTHOR

63       Generated from xproto.xml. Contact xcb@lists.freedesktop.org for cor‐
64       rections and improvements.
65
66
67
68X Version 11                      libxcb 1.12              xcb_poly_segment(3)