SWAPIINFO STRUC
aisLength dw 10 ;size of this structure, in bytes
aisAPI dw ? ;API identifier
aisMajor dw ? ;major version number
aisMinor dw ? ;minor version number
aisSupport dw ? ;support level
SWAPIINFO ENDS
The SWAPIINFO structure contains information about the level of support that a client program provides for a particular type of asynchronous API.
aisLength
Specifies the length of the structure, in bytes.
aisAPI
Identifies the asynchronous API supported by the client program. This value can be one of the following:
| Value | Meaning |
| API_NETBIOS (0001h) | NETBIOS |
| API_8022 (0002h) | 802.2 |
| API_TCPIP (0003h) | TCP/IP |
| API_LANMAN (0004h) | LAN Manager named pipes |
| API_IPX (0005h) | NetWare IPX |
All other values are reserved.
aisMajor
Specifies the highest major version of the API for which the client program provides the level of support specified by the aisSupport field. For example, if the highest version of the API supported by the client program at the specified level is 3.10, this field would be set to 0003h.
aisMinor
Specifies the highest minor version of the API for which the client program provides the specified level of support. For example, if the highest version of the API supported by the client program at the specified level is 3.10, this field would be set to 000Ah.
aisSupport
Specifies the level of support provided by the client program for the particular version of the API. The range and significance of values in this field depend upon the particular API. The following definitions are used for NETBIOS:
| Value | Meaning |
| 0001h | Minimal support. The client program prevents a session switch after an application has called a function supported in an asynchronous API, even after the request has been completed. |
| 0002h | API-level support. The client program tracks asynchronous requests, prevents task switches when requests are outstanding, and allows task switches when all requests have been completed. |
| 0003h | Switcher compatibility. The API provider allows switches to occur even when asynchronous requests are outstanding. However, this may be limited by such factors as buffer size, and some requests might fail. |
| 0004h | Seamless compatibility. The API provider always allows session switches to occur. |