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xcb_get_image
Section: XCB Requests (3)Updated: libxcb 1.12
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NAME
xcb_get_image -SYNOPSIS
#include <xcb/xproto.h>Request function
- xcb_get_image_cookie_t xcb_get_image(xcb_connection_t *conn, uint8_t format, xcb_drawable_t drawable, int16_t x, int16_t y, uint16_t width, uint16_t height, uint32_t plane_mask);
Reply datastructure
typedef struct xcb_get_image_reply_t {
uint8_t response_type;
uint8_t depth;
uint16_t sequence;
uint32_t length;
xcb_visualid_t visual;
uint8_t pad0[20];
} xcb_get_image_reply_t;
Reply function
- xcb_get_image_reply_t *xcb_get_image_reply(xcb_connection_t *conn, xcb_get_image_cookie_t cookie, xcb_generic_error_t **e);
Reply accessors
- uint8_t *xcb_get_image_data(const xcb_get_image_request_t *reply);
- int xcb_get_image_data_length(const xcb_get_image_reply_t *reply);
- xcb_generic_iterator_t xcb_get_image_data_end(const xcb_get_image_reply_t *reply);
REQUEST ARGUMENTS
- conn
- The XCB connection to X11.
- format
-
One of the following values:
-
- XCB_IMAGE_FORMAT_XY_BITMAP
- TODO: NOT YET DOCUMENTED.
- XCB_IMAGE_FORMAT_XY_PIXMAP
- TODO: NOT YET DOCUMENTED.
- XCB_IMAGE_FORMAT_Z_PIXMAP
- TODO: NOT YET DOCUMENTED.
- TODO: NOT YET DOCUMENTED.
-
- drawable
- TODO: NOT YET DOCUMENTED.
- x
- TODO: NOT YET DOCUMENTED.
- y
- TODO: NOT YET DOCUMENTED.
- width
- TODO: NOT YET DOCUMENTED.
- height
- TODO: NOT YET DOCUMENTED.
- plane_mask
- TODO: NOT YET DOCUMENTED.
REPLY FIELDS
- response_type
- The type of this reply, in this case XCB_GET_IMAGE. This field is also present in the xcb_generic_reply_t and can be used to tell replies apart from each other.
- sequence
- The sequence number of the last request processed by the X11 server.
- length
- The length of the reply, in words (a word is 4 bytes).
- depth
- TODO: NOT YET DOCUMENTED.
- visual
- TODO: NOT YET DOCUMENTED.
DESCRIPTION
RETURN VALUE
Returns an xcb_get_image_cookie_t. Errors have to be handled when calling the reply function xcb_get_image_reply.If you want to handle errors in the event loop instead, use xcb_get_image_unchecked. See xcb-requests(3) for details.