Inlage 5 comes with a nicer Sketch Panel based on the Windows 7 Math Input or Text Input Panel. On “Insert” it copies a Bitmap into the Clipboard and pastes it directly to any active window like the Text or Math Input Panel. It’s standalone and free-to-use:


It would be even much nicer if the sketch is saved as vector-graphic.
@crazyT, beat me to it. Completely agree with you