Performs the playback of a specified number of pen packets from an array.
lParam1
A far pointer to an array of pen packets to be played through the system. The array of pen packets must conform to the data format of the DRV_PenPlayStart flags (PLAY_VERSION_10_DATA and PLAY_VERSION_20_DATA).
lParam2
The low-order word of lParam2 contains the number of pen packets to be played back. The high-order word is zero.
A pen driver client must send the DRV_PenPlayStart message before sending the DRV_PenPlayBack message. A DRV_PenPlayStart message must be accompanied by a corresponding DRV_PenPlayStop message to reset the playback mode.