ThisWindow executes the specified command in the context of the current operand window. If there is no operand window (it is invoked in the root window), the command is ignored. ThisWindow is never interactive. The command is executed only if the given conditions are met. It returns -1 if used outside a window context. See Conditions section for a list of conditions.

This command implies the conditions CirculateHit, CirculateHitIcon and CirculateHitShaded. They can be turned off by specifying "!CirculateHit" etc. explicitly.