xcb\_xv\_query\_best\_size(3) XCB Requests xcb\_xv\_query\_best\_size(3)

# [NAME](#NAME)

xcb\_xv\_query\_best\_size -

# [SYNOPSIS](#SYNOPSIS)

**#include <xcb/xv.h>**

## [Request function](#Request_function)

xcb\_xv\_query\_best\_size\_cookie\_t **xcb\_xv\_query\_best\_size**(xcb\_connection\_t \**conn*, xcb\_xv\_port\_t *port*, uint16\_t *vid\_w*, uint16\_t *vid\_h*, uint16\_t *drw\_w*, uint16\_t *drw\_h*, uint8\_t *motion*);

## [Reply datastructure](#Reply_datastructure)

```
typedef struct xcb_xv_query_best_size_reply_t {


    uint8_t  response_type;


    uint8_t  pad0;


    uint16_t sequence;


    uint32_t length;


    uint16_t actual_width;


    uint16_t actual_height;
} xcb_xv_query_best_size_reply_t;
```

## [Reply function](#Reply_function)

xcb\_xv\_query\_best\_size\_reply\_t \***xcb\_xv\_query\_best\_size\_reply**(xcb\_connection\_t \**conn*, xcb\_xv\_query\_best\_size\_cookie\_t *cookie*, xcb\_generic\_error\_t \*\**e*);

# [REQUEST ARGUMENTS](#REQUEST_ARGUMENTS)

[*conn*](#conn)

The XCB connection to X11.

[*port*](#port)

TODO: NOT YET DOCUMENTED.

[*vid\_w*](#vid_w)

TODO: NOT YET DOCUMENTED.

[*vid\_h*](#vid_h)

TODO: NOT YET DOCUMENTED.

[*drw\_w*](#drw_w)

TODO: NOT YET DOCUMENTED.

[*drw\_h*](#drw_h)

TODO: NOT YET DOCUMENTED.

[*motion*](#motion)

TODO: NOT YET DOCUMENTED.

# [REPLY FIELDS](#REPLY_FIELDS)

[*response\_type*](#response_type)

The type of this reply, in this case *XCB\_XV\_QUERY\_BEST\_SIZE*. This field is also present in the *xcb\_generic\_reply\_t* and can be used to tell replies apart from each other.

[*sequence*](#sequence)

The sequence number of the last request processed by the X11 server.

[*length*](#length)

The length of the reply, in words (a word is 4 bytes).

[*actual\_width*](#actual_width)

TODO: NOT YET DOCUMENTED.

[*actual\_height*](#actual_height)

TODO: NOT YET DOCUMENTED.

# [DESCRIPTION](#DESCRIPTION)

# [RETURN VALUE](#RETURN_VALUE)

Returns an *xcb\_xv\_query\_best\_size\_cookie\_t*. Errors have to be handled when calling the reply function *xcb\_xv\_query\_best\_size\_reply*.

If you want to handle errors in the event loop instead, use *xcb\_xv\_query\_best\_size\_unchecked*. See [**xcb-requests(3)**](/man/os/libxcb/xcb-requests.3) for details.

# [ERRORS](#ERRORS)

This request does never generate any errors.

# [SEE ALSO](#SEE_ALSO)

# [AUTHOR](#AUTHOR)

Generated from xv.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.

libxcb 1.17.0 X Version 11

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Document: xcb_xv_query_best_size_reply(3) from libxcb 1.17.0-r17 (Chainguard OS)
Source: https://gitlab.freedesktop.org/xorg/lib/libxcb.git