xcb\_dri2\_get\_param(3) XCB Requests xcb\_dri2\_get\_param(3)

# [NAME](#NAME)

xcb\_dri2\_get\_param -

# [SYNOPSIS](#SYNOPSIS)

**#include <xcb/dri2.h>**

## [Request function](#Request_function)

xcb\_dri2\_get\_param\_cookie\_t **xcb\_dri2\_get\_param**(xcb\_connection\_t \**conn*, xcb\_drawable\_t *drawable*, uint32\_t *param*);

## [Reply datastructure](#Reply_datastructure)

```
typedef struct xcb_dri2_get_param_reply_t {


    uint8_t  response_type;


    uint8_t  is_param_recognized;


    uint16_t sequence;


    uint32_t length;


    uint32_t value_hi;


    uint32_t value_lo;
} xcb_dri2_get_param_reply_t;
```

## [Reply function](#Reply_function)

xcb\_dri2\_get\_param\_reply\_t \***xcb\_dri2\_get\_param\_reply**(xcb\_connection\_t \**conn*, xcb\_dri2\_get\_param\_cookie\_t *cookie*, xcb\_generic\_error\_t \*\**e*);

# [REQUEST ARGUMENTS](#REQUEST_ARGUMENTS)

[*conn*](#conn)

The XCB connection to X11.

[*drawable*](#drawable)

TODO: NOT YET DOCUMENTED.

[*param*](#param)

TODO: NOT YET DOCUMENTED.

# [REPLY FIELDS](#REPLY_FIELDS)

[*response\_type*](#response_type)

The type of this reply, in this case *XCB\_DRI2\_GET\_PARAM*. 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).

[*is\_param\_recognized*](#is_param_recognized)

TODO: NOT YET DOCUMENTED.

[*value\_hi*](#value_hi)

TODO: NOT YET DOCUMENTED.

[*value\_lo*](#value_lo)

TODO: NOT YET DOCUMENTED.

# [DESCRIPTION](#DESCRIPTION)

# [RETURN VALUE](#RETURN_VALUE)

Returns an *xcb\_dri2\_get\_param\_cookie\_t*. Errors have to be handled when calling the reply function *xcb\_dri2\_get\_param\_reply*.

If you want to handle errors in the event loop instead, use *xcb\_dri2\_get\_param\_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 dri2.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.

libxcb 1.17.0 X Version 11

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Document: xcb_dri2_get_param_reply(3) from libxcb 1.17.0-r16 (Chainguard OS)
Source: https://gitlab.freedesktop.org/xorg/lib/libxcb.git