DPN_CAPS
Used when setting and retrieving general parameters for DirectPlay.
typedef struct _DPN_CAPS{
    DWORD dwSize;
    DWORD dwFlags;
    DWORD dwConnectTimeout;
    DWORD dwConnectRetries;
    DWORD dwTimeoutUntilKeepAlive;
} DPN_CAPS, *PDPN_CAPS;
Members
- dwSize
- This value must be set to the size of the structure. 
- dwFlags
- Reserved, this must be 0.
- dwConnectTimeout
- Number of milliseconds DirectPlay should wait before it retries a connection request.
- dwConnectRetries
- Number of connection retries DirectPlay should make during the connection process.
- dwTimeoutUntilKeepAlive
- Number of milliseconds DirectPlay waits since the last time it received a packet from an endpoint, before it sends a keep alive message. The actual delay can vary from the specified value to as much as twice the specified value. 
Requirements
  Windows NT/2000/XP: Available as a redistributable for Windows 2000 and later.
  Windows 98/Me: Available as a redistributable for Windows 98 and later.
  Header: Declared in Dplay8.h.