haven/nexgb/examples/property.go

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package main
import (
"log"
"github.com/BurntSushi/xgb"
)
func init() {
log.SetFlags(0)
}
func get32(buf []byte) uint32 {
v := uint32(buf[0])
v |= uint32(buf[1]) << 8
v |= uint32(buf[2]) << 16
v |= uint32(buf[3]) << 24
return v
}
func main() {
X, err := xgb.NewConn()
if err != nil {
log.Fatal(err)
}
root := X.DefaultScreen().Root
aname := "_NET_ACTIVE_WINDOW"
atom, err := X.InternAtom(true, uint16(len(aname)), aname)
if err != nil {
log.Fatal(err)
}
reply, err := X.GetProperty(false, root, atom.Atom, xgb.GetPropertyTypeAny,
0, (1<<32)-1)
log.Printf("%X", get32(reply.Value))
}