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4.1 Calling Sequence

The following is a typical calling sequence of the WinDriver API, used for handling Plug and Play and power management events. (Note: the use of the PciEventCreate()/PcmciaEventCreate() functions, which appear in the sequence below, is optional).

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NOTE

It is recommended to use the high-level WDC_EventRegister() and WDC_EventUnregister() Play and Play and power management APIs (see the WinDriver PCI Manual), instead of using the low-level APIs described in this chapter.

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**Figure 4.1:** Plug and Play Calling Sequence

	NOTE
	It is recommended to use the high-level `WDC_EventRegister()` and `WDC_EventUnregister()` Play and Play and power management APIs (see the WinDriver PCI Manual), instead of using the low-level APIs described in this chapter.