// CompletionEventNew constructs a CompletionEvent value that implements xgb.Event from a byte slice.
func CompletionEventNew(buf []byte) xgb.Event {
v := CompletionEvent{}
b := 1 // don't read event number
b += 1 // padding
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.Drawable = xproto.Drawable(xgb.Get32(buf[b:]))
b += 4
v.MinorEvent = xgb.Get16(buf[b:])
b += 2
v.MajorEvent = buf[b]
b += 1
b += 1 // padding
v.Shmseg = Seg(xgb.Get32(buf[b:]))
b += 4
v.Offset = xgb.Get32(buf[b:])
b += 4
return v
}
func main() {
X, err := xgbutil.NewConn()
if err != nil {
log.Fatal(err)
}
// Use the "NewDrawable" constructor to create an xgraphics.Image value
// from a drawable. (Usually this is done with pixmaps, but drawables
// can also be windows.)
ximg, err := xgraphics.NewDrawable(X, xproto.Drawable(X.RootWin()))
if err != nil {
log.Fatal(err)
}
// Shows the screenshot in a window.
ximg.XShowExtra("Screenshot", true)
// If you'd like to save it as a png, use:
// err = ximg.SavePng("screenshot.png")
// if err != nil {
// log.Fatal(err)
// }
xevent.Main(X)
}
// BufferSwapCompleteEventNew constructs a BufferSwapCompleteEvent value that implements xgb.Event from a byte slice.
func BufferSwapCompleteEventNew(buf []byte) xgb.Event {
v := BufferSwapCompleteEvent{}
b := 1 // don't read event number
b += 1 // padding
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.EventType = xgb.Get16(buf[b:])
b += 2
b += 2 // padding
v.Drawable = xproto.Drawable(xgb.Get32(buf[b:]))
b += 4
v.UstHi = xgb.Get32(buf[b:])
b += 4
v.UstLo = xgb.Get32(buf[b:])
b += 4
v.MscHi = xgb.Get32(buf[b:])
b += 4
v.MscLo = xgb.Get32(buf[b:])
b += 4
v.Sbc = xgb.Get32(buf[b:])
b += 4
return v
}
// InvalidateBuffersEventNew constructs a InvalidateBuffersEvent value that implements xgb.Event from a byte slice.
func InvalidateBuffersEventNew(buf []byte) xgb.Event {
v := InvalidateBuffersEvent{}
b := 1 // don't read event number
b += 1 // padding
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.Drawable = xproto.Drawable(xgb.Get32(buf[b:]))
b += 4
return v
}