Using ActiveX Methods in Reactor Callback Functions
second detail appearing in the pseudo-code shows up near the end,
at the step for redrawing the tiles. Here is the pseudo-code statement:
Redraw the tiles (force ActiveX drawing)
The parenthetical phrase says it all: force
ActiveX drawing. Why is this required? Why can't the application
use the object creation preference stored in the association sublist?
answer is you cannot use the command function
for entity creation within a reactor callback function. This has
to do with some internal workings of AutoCAD. You need to force
the tile drawing routine to use ActiveX. You will hear more about
this issue later in this lesson.