Subclassing and Hooking with Visual Basic

Chapter 20. WH_JOURNALPLAYBACK

Chapter 19 discussed the WH_JOURNALRECORD hook and how you can use it to record mouse and keyboard input messages. This chapter will cover the WH_JOURNALPLAYBACK hook, which is the counterpart to the WH_JOURNALRECORD hook that you can use to play back mouse and keyboard messages. After discussing the WH_JOURNALPLAYBACK hook, I will demonstrate how you can use this hook to finish the macro recorder example application that we began in Chapter 19.