xcb_poly_segment(3) - phpMan

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_seg-
ment_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?