Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
The ACF File

The ACF File

The ACF file enables you to customize your client and/or server applications' RPC interface without affecting the network characteristics of the interface. For example, if your client application contains a complex data structure that only has meaning on the local machine, you can specify in the ACF file how the data in that structure can be represented in a machine-independent form for remote procedure calls.

This tutorial demonstrates another use of the ACF file—specifying the type of binding handle that represents the connection between client and server. The [implicit_handle] attribute in the ACF header allows the client application to select a server for its remote procedure call. The ACF defines the handle to be of the type handle_t (a MIDL primitive data type). The MIDL compiler will put the binding handle name that the ACF specified, hello_IfHandle into the header file it generates. Notice that this particular ACF file has an empty body.

//file: hello.acf
[
    implicit_handle (handle_t hello_IfHandle)
] 
interface hello
{
}

The MIDL compiler has an option, /app_config, that lets you include certain ACF attributes, such as implicit_handle, in the IDL file, rather than creating a separate ACF file. Consider using this option if your application doesn't require a lot of special configuration and if strict OSF compatibility is not an issue.

 

 

Community Additions

ADD
Show:
© 2015 Microsoft