xcb_dbe_get_visual_info_supported_visuals_length3
Requests visuals that support double buffering
Part of xcb_dbe_get_visual_info(3).
Usage
Request function
xcb_dbe_get_visual_info_cookie_t xcb_dbe_get_visual_info(xcb_connection_t
*conn,
uint32_t
n_drawables,
const
xcb_drawable_t
*drawables);
Reply datastructure
uint8_t response_type;
uint8_t pad0;
uint16_t sequence;
uint32_t length;
uint32_t n_supported_visuals;
uint8_t pad1
[20]
;
Reply accessors
int xcb_dbe_get_visual_info_supported_visuals_length(const
xcb_dbe_get_visual_info_reply_t
*reply);
xcb_dbe_visual_infos_iterator_t xcb_dbe_get_visual_info_supported_visuals_iterator(const
xcb_dbe_get_visual_info_reply_t
*reply);
Request arguments
- conn
-
The XCB connection to X11.
- n_drawables
-
TODO: NOT YET DOCUMENTED.
- drawables
-
TODO: NOT YET DOCUMENTED.
Reply fields
- response_type
-
The type of this reply, in this case XCB_DBE_GET_VISUAL_INFO. 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).
- n_supported_visuals
-
TODO: NOT YET DOCUMENTED.
Overview
Return value
Returns an xcb_dbe_get_visual_info_cookie_t. Errors have to be handled when calling the reply function xcb_dbe_get_visual_info_reply.
If you want to handle errors in the event loop instead, use xcb_dbe_get_visual_info_unchecked. See xcb-requests(3) for details.
Errors
This request does never generate any errors.