I am using C# and VSIP extras.

I can create completion sets, but I cannot set the width of the Completion
window. It is constant whatever content I have and whatever I return in
GetInitialExtent(). The width is about Icon width + 6 characters.

I have already tried to force the initial extend end to same value as start,
also used GetWordExtend to compute start and end and changed the content of
the set with fixed length strings.

I looks like the widow doesn't auto-size and I could find no way to set its
size.