Structures

Some structures have changed for DirectPlay 5, with new data members added to the end. Applications that use the IDirectPlay2 interface but are compiled using the DirectX 5 header files can have problems. An application might crash if it is run on a computer that has the DirectX 3 run time installed and the application references data members that were added for DirectX 5.

Applications that need to be backward compatible with older run times should either:

• use the structures that existed in the DirectX 3 header files
• check the dwSize member in each structure before attempting to access to members of the structure

The structures that have new members for DirectPlay 5 are:

Structure	New Members
DPCREDENTIALS	union of
	LPWSTR lpszDomain
	LPSTR lpszDomainA

The DirectPlay structures are:

• DPACCOUNTDESC
• DPCAPS
• DPCHAT
• DPCOMPORTADDRESS
• DPCOMPOUNDADDRESSELEMENT
• DPCREDENTIALS
• DPLAPPINFO
• DPLCONNECTION
• DPNAME
• DPSECURITYDESC
• DPSESSIONDESC2

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