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xcb_poly_line(3) XCB Requests xcb_poly_line(3) NAME xcb_poly_line - draw lines SYNOPSIS #include <xcb/xproto.h> Request function xcb_void_cookie_t xcb_poly_line(xcb_connection_t *conn, uint8_t coordinate_mode, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t points_len, const xcb_point_t *points); REQUEST ARGUMENTS conn The XCB connection to X11. coordinate_mode One of the following values: XCB_COORD_MODE_ORIGIN Treats all coordinates as relative to the origin. XCB_COORD_MODE_PREVIOUS Treats all coordinates after the first as relative to the previous coordinate. drawable The drawable to draw the line(s) on. gc The graphics context to use. points_len The number of xcb_point_t structures in points. points An array of points. DESCRIPTION Draws points_len-1 lines between each pair of points (point[i], point[i+1]) in the points array. The lines are drawn in the order list- ed in the array. They join correctly at all intermediate points, and if the first and last points coincide, the first and last lines also join correctly. For any given line, a pixel is not drawn more than once. If thin (zero line-width) lines intersect, the intersecting pix- els are drawn multiple times. If wide lines intersect, the intersecting pixels are drawn only once, as though the entire request were a single, filled shape. 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_line_checked. See xcb-requests(3) for details. ERRORS xcb_drawable_error_t TODO: reasons? xcb_g_context_error_t TODO: reasons? xcb_match_error_t TODO: reasons? xcb_value_error_t TODO: reasons? EXAMPLE /* * Draw a straight line. * */ void my_example(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc) { xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, drawable, gc, 2, (xcb_point_t[]) { {10, 10}, {100, 10} }); xcb_flush(conn); } SEE ALSO xcb-requests(3), xcb-examples(3) AUTHOR Generated from xproto.xml. Contact xcb@lists.freedesktop.org for cor- rections and improvements. X Version 11 libxcb 1.17.0 xcb_poly_line(3)
NAME | SYNOPSIS | REQUEST ARGUMENTS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO | AUTHOR
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