xcb_get_image_data_length(3)

1xcb_get_image(3)                 XCB Requests                 xcb_get_image(3)
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NAME

6       xcb_get_image -
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SYNOPSIS

9       #include <xcb/xproto.h>
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11   Request function
12       xcb_get_image_cookie_t xcb_get_image(xcb_connection_t *conn,
13              uint8_t format, xcb_drawable_t drawable, int16_t x, int16_t y,
14              uint16_t width, uint16_t height, uint32_t plane_mask);
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16   Reply datastructure
17       typedef struct xcb_get_image_reply_t {
18           uint8_t        response_type;
19           uint8_t        depth;
20           uint16_t       sequence;
21           uint32_t       length;
22           xcb_visualid_t visual;
23           uint8_t        pad0[20];
24       } xcb_get_image_reply_t;
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26   Reply function
27       xcb_get_image_reply_t *xcb_get_image_reply(xcb_connection_t *conn,
28              xcb_get_image_cookie_t cookie, xcb_generic_error_t **e);
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30   Reply accessors
31       uint8_t *xcb_get_image_data(const xcb_get_image_request_t *reply);
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33       int xcb_get_image_data_length(const xcb_get_image_reply_t *reply);
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35       xcb_generic_iterator_t xcb_get_image_data_end(const
36              xcb_get_image_reply_t *reply);
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REQUEST ARGUMENTS

39       conn      The XCB connection to X11.
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41       format    One of the following values:
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43                 XCB_IMAGE_FORMAT_XY_BITMAP
44                           TODO: NOT YET DOCUMENTED.
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46                 XCB_IMAGE_FORMAT_XY_PIXMAP
47                           TODO: NOT YET DOCUMENTED.
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49                 XCB_IMAGE_FORMAT_Z_PIXMAP
50                           TODO: NOT YET DOCUMENTED.
51                 TODO: NOT YET DOCUMENTED.
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53       drawable  TODO: NOT YET DOCUMENTED.
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55       x         TODO: NOT YET DOCUMENTED.
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57       y         TODO: NOT YET DOCUMENTED.
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59       width     TODO: NOT YET DOCUMENTED.
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61       height    TODO: NOT YET DOCUMENTED.
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63       plane_mask
64                 TODO: NOT YET DOCUMENTED.
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REPLY FIELDS

67       response_type
68                 The type of this reply, in this case XCB_GET_IMAGE. This
69                 field is also present in the xcb_generic_reply_t and can be
70                 used to tell replies apart from each other.
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72       sequence  The sequence number of the last request processed by the X11
73                 server.
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75       length    The length of the reply, in words (a word is 4 bytes).
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77       depth     TODO: NOT YET DOCUMENTED.
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79       visual    TODO: NOT YET DOCUMENTED.
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DESCRIPTION

RETURN VALUE

83       Returns an xcb_get_image_cookie_t. Errors have to be handled when call‐
84       ing the reply function xcb_get_image_reply.
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86       If you want to handle errors in the event loop instead, use xcb_get_im‐
87       age_unchecked. See xcb-requests(3) for details.
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ERRORS

90       This request does never generate any errors.
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AUTHOR

94       Generated from xproto.xml. Contact xcb@lists.freedesktop.org for cor‐
95       rections and improvements.
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99X Version 11                     libxcb 1.13.1                xcb_get_image(3)