Struct xcb::x::ChangeGc

pub struct ChangeGc<'a> {
    pub gc: Gcontext,
    pub value_list: &'a [Gc],
}

change graphics context components

Changes the components specified by value_mask for the specified graphics context.

Example

// Change the foreground and background component
// of a graphics context to white on black.
// `value_list` components order must be in the same order
// than in the `Gc` enum.
conn.send_request(&x::ChangeGc {
    gc,
    value_list: &[
        x::Gc::Foreground(screen.white_pixel()),
        x::Gc::Background(screen.black_pixel()),
    ],
});
conn.flush()?;

This request has no reply.

Associated cookie types are VoidCookie and VoidCookieChecked.

Fields

gc: Gcontext

The graphics context to change.

value_list: &'a [Gc]

Values for each of the components specified in the bitmask value_mask. The order has to correspond to the order of possible value_mask bits. See the example.

Trait Implementations

impl<'a> Clone for ChangeGc<'a>

fn clone(&self) -> ChangeGc<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ChangeGc<'a>

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

Formats the value using the given formatter.

impl<'a> RawRequest for ChangeGc<'a>

fn raw_request(&self, c: &Connection, checked: bool) -> u64

Actual implementation of the request sending

impl<'a> Request for ChangeGc<'a>

type Cookie = VoidCookie

The default cookie associated to this request.

const IS_VOID: bool = true

false if the request returns a reply, true otherwise.

impl<'a> RequestWithoutReply for ChangeGc<'a>