Struct QueryTreeRequest

pub struct QueryTreeRequest {
    pub window: u32,
}

query the window tree.

Gets the root window ID, parent window ID and list of children windows for the specified window. The children are listed in bottom-to-top stacking order.

Fields

• window - The window to query.

See

• xwininfo: program

Example

/*
 * Displays the root, parent and children of the specified window.
 *
 */
void my_example(xcb_connection_t *conn, xcb_window_t window) {
    xcb_query_tree_cookie_t cookie;
    xcb_query_tree_reply_t *reply;

    cookie = xcb_query_tree(conn, window);
    if ((reply = xcb_query_tree_reply(conn, cookie, NULL))) {
        printf("root = 0x%08x\\n", reply->root);
        printf("parent = 0x%08x\\n", reply->parent);

        xcb_window_t *children = xcb_query_tree_children(reply);
        for (int i = 0; i < xcb_query_tree_children_length(reply); i++)
            printf("child window = 0x%08x\\n", children[i]);

        free(reply);
    }
}

Fields

window: u32

Implementations

impl QueryTreeRequest

pub fn serialize(self) -> ([Cow<'static, [u8]>; 1], Vec<OwnedFd>)

Serialize this request into bytes for the provided connection

Trait Implementations

impl Clone for QueryTreeRequest

fn clone(&self) -> QueryTreeRequest

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QueryTreeRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for QueryTreeRequest

fn default() -> QueryTreeRequest

Returns the “default value” for a type.

impl ReplyRequest for QueryTreeRequest

type Reply = QueryTreeReply

The kind of reply that this request generates.

impl Request for QueryTreeRequest

const EXTENSION_NAME: Option<&'static str> = None

The protocol name of the extension that this request belongs to, or None for core requests

fn serialize(self, _major_opcode: u8) -> (Vec<u8>, Vec<OwnedFd>)

Serialize this request into its X11 protocol wire representation.

impl Copy for QueryTreeRequest