xcb_glx_get_convolution_filter_data(3)

Usage

#include <xcb/glx.h>

Request function

xcb_glx_get_convolution_filter_cookie_t xcb_glx_get_convolution_filter(xcb_connection_t *conn, xcb_glx_context_tag_t context_tag, uint32_t target, uint32_t format, uint32_t type, uint8_t swap_bytes);

Reply datastructure

typedef struct xcb_glx_get_convolution_filter_reply_t {
    uint8_t  response_type;
    uint8_t  pad0;
    uint16_t sequence;
    uint32_t length;
    uint8_t  pad1[8];
    int32_t  width;
    int32_t  height;
    uint8_t  pad2[8];
} xcb_glx_get_convolution_filter_reply_t;

Reply function

xcb_glx_get_convolution_filter_reply_t *xcb_glx_get_convolution_filter_reply(xcb_connection_t *conn, xcb_glx_get_convolution_filter_cookie_t cookie, xcb_generic_error_t **e);

Reply accessors

uint8_t *xcb_glx_get_convolution_filter_data(const xcb_glx_get_convolution_filter_request_t *reply);

int xcb_glx_get_convolution_filter_data_length(const xcb_glx_get_convolution_filter_reply_t *reply);

xcb_generic_iterator_t xcb_glx_get_convolution_filter_data_end(const xcb_glx_get_convolution_filter_reply_t *reply);

Request arguments

`conn`	The XCB connection to X11.
`context_tag`	TODO: NOT YET DOCUMENTED.
`target`	TODO: NOT YET DOCUMENTED.
`format`	TODO: NOT YET DOCUMENTED.
`type`	TODO: NOT YET DOCUMENTED.
`swap_bytes`	TODO: NOT YET DOCUMENTED.

Reply fields

response_type: The type of this reply, in this case XCB_GLX_GET_CONVOLUTION_FILTER. 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).

width: TODO: NOT YET DOCUMENTED.

height: TODO: NOT YET DOCUMENTED.

Overview

Return value

Returns an xcb_glx_get_convolution_filter_cookie_t. Errors have to be handled when calling the reply function xcb_glx_get_convolution_filter_reply.

If you want to handle errors in the event loop instead, use xcb_glx_get_convolution_filter_unchecked. See xcb-requests(3) for details.

Errors

This request does never generate any errors.

Releases

6 releases since Debian 9 (Stretch); the text changed 4 times.