xcb\_glx\_get\_histogram\_parameterfv(3) XCB Requests xcb\_glx\_get\_histogram\_parameterfv(3)

# [NAME](#NAME)

xcb\_glx\_get\_histogram\_parameterfv -

# [SYNOPSIS](#SYNOPSIS)

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

## [Request function](#Request_function)

xcb\_glx\_get\_histogram\_parameterfv\_cookie\_t **xcb\_glx\_get\_histogram\_parameterfv**(xcb\_connection\_t \**conn*, xcb\_glx\_context\_tag\_t *context\_tag*, uint32\_t *target*, uint32\_t *pname*);

## [Reply datastructure](#Reply_datastructure)

```
typedef struct xcb_glx_get_histogram_parameterfv_reply_t {


    uint8_t           response_type;


    uint8_t           pad0;


    uint16_t          sequence;


    uint32_t          length;


    uint8_t           pad1[4];


    uint32_t          n;


    xcb_glx_float32_t datum;


    uint8_t           pad2[12];
} xcb_glx_get_histogram_parameterfv_reply_t;
```

## [Reply function](#Reply_function)

xcb\_glx\_get\_histogram\_parameterfv\_reply\_t \***xcb\_glx\_get\_histogram\_parameterfv\_reply**(xcb\_connection\_t \**conn*, xcb\_glx\_get\_histogram\_parameterfv\_cookie\_t *cookie*, xcb\_generic\_error\_t \*\**e*);

## [Reply accessors](#Reply_accessors)

xcb\_glx\_float32\_t \***xcb\_glx\_get\_histogram\_parameterfv\_data**(const xcb\_glx\_get\_histogram\_parameterfv\_request\_t \**reply*);

int **xcb\_glx\_get\_histogram\_parameterfv\_data\_length**(const xcb\_glx\_get\_histogram\_parameterfv\_reply\_t \**reply*);

xcb\_generic\_iterator\_t **xcb\_glx\_get\_histogram\_parameterfv\_data\_end**(const xcb\_glx\_get\_histogram\_parameterfv\_reply\_t \**reply*);

# [REQUEST ARGUMENTS](#REQUEST_ARGUMENTS)

[*conn*](#conn)

The XCB connection to X11.

[*context\_tag*](#context_tag)

TODO: NOT YET DOCUMENTED.

[*target*](#target)

TODO: NOT YET DOCUMENTED.

[*pname*](#pname)

TODO: NOT YET DOCUMENTED.

# [REPLY FIELDS](#REPLY_FIELDS)

[*response\_type*](#response_type)

The type of this reply, in this case *XCB\_GLX\_GET\_HISTOGRAM\_PARAMETERFV*. 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).

[*n*](#n)

TODO: NOT YET DOCUMENTED.

[*datum*](#datum)

TODO: NOT YET DOCUMENTED.

# [DESCRIPTION](#DESCRIPTION)

# [RETURN VALUE](#RETURN_VALUE)

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

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

libxcb 1.17.0 X Version 11

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Document: xcb_glx_get_histogram_parameterfv_reply(3) from libxcb 1.17.0-r19 (Chainguard OS)
Source: https://gitlab.freedesktop.org/xorg/lib/libxcb.git