CONST_DPCAPSFLAGS

Constants of the CONST_DPCAPSFLAGS enumeration are used in the DPCAPS type to specify the capabilities of the DirectPlay object.

Enum CONST_DPCAPSFLAGS
    DPCAPS_ASYNCCANCELALLSUPPORTED = 8192 (&H2000)
    DPCAPS_ASYNCCANCELSUPPORTED =    4096 (&H1000)
    DPCAPS_ASYNCSUPPORTED =         65536 (&H10000)
    DPCAPS_ENCRYPTIONSUPPORTED =      256 (&H100)
    DPCAPS_GROUPOPTIMIZED =             8 
    DPCAPS_GUARANTEEDOPTIMIZED =       32 (&H20)
    DPCAPS_GUARANTEEDSUPPORTED =       64 (&H40)
    DPCAPS_ISHOST =                     2 
    DPCAPS_KEEPALIVEOPTIMIZED =        16 (&H10)
    DPCAPS_SENDPRIORITYSUPPORTED =  32768 (&H8000)
    DPCAPS_SENDTIMEOUTSUPPORTED =   16384 (&H4000)
    DPCAPS_SIGNINGSUPPORTED =         128 (&H80)
End Enum

DPCAPS_ASYNCCANCELALLSUPPORTED

Canceling all pending asynchronous messages is supported. This flag indicates that the only form of cancellation supported is the ability to cancel all unsent messages. Any attempt to cancel messages by specifying a priority range or a message ID will return DPERR_UNSUPPORTED. By contrast, the DPCAPS_ASYNCCANCELSUPPORTED flag indicates that all types of cancellation are supported. Note that capabilities indicating which aspects of SendEx are supported are not available until after the session has been opened.

DPCAPS_ASYNCCANCELSUPPORTED

Canceling asynchronous messages is supported. All types of cancellation are supported: canceling by message ID, canceling by priority range, and canceling all unsent messages. Note that capabilities indicating which aspects of SendEx are supported are not available until after the session has been opened.

DPCAPS_ASYNCSUPPORTED

Asynchronous messaging is supported. Thus, an application can use the DPSEND_ASYNC flag on SendEx. Note that capabilities indicating which aspects of SendEx are supported are not available until after the session has been opened.

DPCAPS_ENCRYPTIONSUPPORTED

Message encryption is supported by this DirectPlay object, either because the session is a secure session, or because the service provider can encrypt messages.

DPCAPS_GROUPOPTIMIZED

The service provider bound to this DirectPlay object can optimize group (multicast) messaging.

DPCAPS_GUARANTEEDOPTIMIZED

The service provider bound to this DirectPlay object supports guaranteed message delivery.

DPCAPS_GUARANTEEDSUPPORTED

The DirectPlay object supports guaranteed message delivery, either because the service provider supports it, or because DirectPlay implements it on a nonguaranteed service provider.

DPCAPS_ISHOST

The DirectPlay object created by the calling application is the session host.

DPCAPS_KEEPALIVEOPTIMIZED

The service provider can detect when the connection to the session has been lost.

DPCAPS_SENDPRIORITYSUPPORTED

The message priority set in SendEx is supported. Note that capabilities indicating which aspects of SendEx are supported are not available until after the session has been opened.

DPCAPS_SENDTIMEOUTSUPPORTED

The time-out for messages specified in SendEx is supported. This flag can be set by the service provider or by DirectPlay. Note that capabilities indicating which aspects of SendEx are supported are not available until after the session has been opened.

DPCAPS_SIGNINGSUPPORTED

Message authentication is supported by this DirectPlay object, either because it is a secure session, or because the service provider can sign messages.