go-rfb/example/client/main.go

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package main
import (
"context"
"log"
"net"
"time"
vnc "github.com/kward/go-vnc"
"github.com/kward/go-vnc/logging"
"github.com/kward/go-vnc/messages"
"github.com/kward/go-vnc/rfbflags"
)
func main() {
logging.V(logging.FnDeclLevel)
// Establish TCP connection to VNC server.
nc, err := net.Dial("tcp", "127.0.0.1:5923")
if err != nil {
log.Fatalf("Error connecting to VNC host. %v", err)
}
// Negotiate connection with the server.
ch := make(chan vnc.ServerMessage)
vc, err := vnc.Connect(context.Background(), nc,
&vnc.ClientConfig{
Auth: []vnc.ClientAuth{&vnc.ClientAuthNone{}},
ServerMessageCh: ch,
})
if err != nil {
log.Fatalf("Error negotiating connection to VNC host. %v", err)
}
// Periodically request framebuffer updates.
go func() {
w, h := vc.FramebufferWidth(), vc.FramebufferHeight()
for {
if err := vc.FramebufferUpdateRequest(rfbflags.RFBTrue, 0, 0, w, h); err != nil {
log.Printf("error requesting framebuffer update: %v", err)
return
}
time.Sleep(1 * time.Second)
}
}()
// Listen and handle server messages.
go vc.ListenAndHandle()
// Process messages coming in on the ServerMessage channel.
for {
msg := <-ch
switch msg.Type() {
case messages.FramebufferUpdate:
log.Println("Received FramebufferUpdate message.")
default:
log.Printf("Received message type:%v msg:%v\n", msg.Type(), msg)
}
}
}