go-tg-screenshot-bot

1
package xgb
2

3
// Sync sends a round trip request and waits for the response.
4
// This forces all pending cookies to be dealt with.
5
// You actually shouldn't need to use this like you might with Xlib. Namely,
6
// buffers are automatically flushed using Go's channels and round trip requests
7
// are forced where appropriate automatically.
8
func (c *Conn) Sync() {
9
	cookie := c.NewCookie(true, true)
10
	c.NewRequest(c.getInputFocusRequest(), cookie)
11
	cookie.Reply() // wait for the buffer to clear
12
}
13

14
// getInputFocusRequest writes the raw bytes to a buffer.
15
// It is duplicated from xproto/xproto.go.
16
func (c *Conn) getInputFocusRequest() []byte {
17
	size := 4
18
	b := 0
19
	buf := make([]byte, size)
20

21
	buf[b] = 43 // request opcode
22
	b += 1
23

24
	b += 1                         // padding
25
	Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
26
	b += 2
27

28
	return buf
29
}
30