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April, 26th. 2006:
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xcb_poly_segment
Section: XCB Requests (3) Updated: libxcb 1.12 Index
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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.
Index
- NAME
-
- SYNOPSIS
-
- Request function
-
- REQUEST ARGUMENTS
-
- DESCRIPTION
-
- RETURN VALUE
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- ERRORS
-
- SEE ALSO
-
- AUTHOR
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