selfImDrawData handle on which this method operates.
draw_listDraw-list handle whose channels are manipulated or whose commands are appended to draw data.
Appends a reference, not a copy. The binding retains the list's native owner until ImDrawData_Clear(), the owning context's next NewFrame() (including SFML.Update()), or context shutdown. Keeping the JS wrapper alive is not required. Borrowed window lists still follow their normal frame lifetime.
Add a draw list to the draw data.