Example #1
0
// 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
}
Example #2
0
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)
}
Example #3
0
// 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
}
Example #4
0
// 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
}