xcb-rust-protocol 0.3.0

Rust x11 connection interface layer
Documentation 
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#[allow(unused_imports)]
use crate::cookie::Cookie;
#[allow(unused_imports)]
use crate::cookie::FixedCookie;
#[allow(unused_imports)]
use crate::cookie::VoidCookie;
#[allow(unused_imports)]
use crate::util::FixedLengthSerialize;
#[allow(unused_imports)]
use crate::util::VariableLengthSerialize;
pub fn enable<IO, XS>(
    io: &mut IO,
    xcb_state: &mut XS,
    forget: bool,
) -> crate::error::Result<FixedCookie<crate::proto::bigreq::EnableReply, 12>>
where
    IO: crate::con::SocketIo,
    XS: crate::con::XcbState,
{
    let major_opcode = xcb_state
        .major_opcode(crate::proto::bigreq::EXTENSION_NAME)
        .ok_or(crate::error::Error::MissingExtension(
            crate::proto::bigreq::EXTENSION_NAME,
        ))?;
    io.use_write_buffer(|buf| {
        let buf = buf.get_mut(..4).ok_or(crate::error::Error::Serialize)?;
        buf[0] = major_opcode;
        buf[1] = 0;
        buf[2..4].copy_from_slice(&(1u16).to_ne_bytes());
        Ok::<usize, crate::error::Error>(4)
    })?;
    let seq = if forget {
        xcb_state.next_seq()
    } else {
        xcb_state.keep_and_return_next_seq()
    };
    Ok(FixedCookie::new(seq))
}