The accessor dde-item performs a request transaction when read. It performs a poke transaction when set.
To illustrate, the following dde-request command
(dde-request conversation item :format format :type type :errorp errorp ) can also be issued using dde-item as follows:
(dde-item conversation item :FORMAT format :TYPE type :ERRORP errorp )Similarly, the following dde-poke command
(dde-poke conversation item data :format format :type type :errorp errorp ) can be issued using dde-item as follows:
(setf (dde-item conversation item :format format :type type :errorp errorp ) data )except that the format always returns data .
Upon success, this function returns a result of t . On failure, the behavior depends on the value of the errorp argument. If errorp is t (the default value), LispWorks signals an error. If it is nil , the function returns nil to indicate failure.