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package xgb
// Sync sends a round trip request and waits for the response.
// This forces all pending cookies to be dealt with.
// You actually shouldn't need to use this like you might with Xlib. Namely,
// buffers are automatically flushed using Go's channels and round trip requests
// are forced where appropriate automatically.
func (c *Conn) Sync() {
cookie := c.NewCookie(true, true)
c.NewRequest(c.getInputFocusRequest(), cookie)
cookie.Reply() // wait for the buffer to clear
}
// getInputFocusRequest writes the raw bytes to a buffer.
// It is duplicated from xproto/xproto.go.
func (c *Conn) getInputFocusRequest() []byte {
size := 4
b := 0
buf := make([]byte, size)
buf[b] = 43 // request opcode
b += 1
b += 1 // padding
Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
return buf
}
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