---
name: "xcb_property_notify_event_t"
section: "3"
platform: "linux"
package: "libxcb"
version: "1.17.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/xcb_property_notify_event_t"
---

# xcb\_property\_notify\_event\_t(3)

a window property changed

## NAME

xcb\_property\_notify\_event\_t - a window property changed

## SYNOPSIS

**#include \<xcb/xproto.h\>**

### Event datastructure

```

typedef struct xcb_property_notify_event_t {
    uint8_t         response_type;
    uint8_t         pad0;
    uint16_t        sequence;
    xcb_window_t    window;
    xcb_atom_t      atom;
    xcb_timestamp_t time;
    uint8_t         state;
    uint8_t         pad1[3];
} xcb_property_notify_event_t;
```

## EVENT FIELDS

- *response\_type*

  The type of this event, in this case *XCB\_PROPERTY\_NOTIFY*. This field is also present in the *xcb\_generic\_event\_t* and can be used to tell events apart from each other.

- *sequence*

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

- *window*

  The window whose associated property was changed.

- *atom*

  The property's atom, to indicate which property was changed.

- *time*

  A timestamp of the server time when the property was changed.

- *state*

  ## DESCRIPTION

## SEE ALSO

**xcb\_generic\_event\_t**(3), [**xcb\_change\_property**(3)](/xcb_change_property/3.md)

## AUTHOR

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