Re: [Help-smalltalk] DLD Usage

[Paolo Bonzini]

> There is a utility named gtk-server (http://www.gtk-server.org) wich
> offers a stream-oriented interface to the GTK library. The stream
> interface is easily implemented in GNU smalltalk, but there is also a 
> shared library version which provide a simple function
> ('char* gtk(char*)').

Interesting.

> Do i miss something when the C function descriptor is build ?

You don't need building a C function descriptor.  It is just an internal 
detail.

Invoke "DLD addLibrary: 'libgtk-server.so'" just once, outside GtkServer 
completely.  Then, implement #call: like this:

    call: aString [
        <cCall: 'gtk' returning: #string args: #(#string)>
    ]

The pragma <cCall:...> will be compiled to the invocation of #callInto: 
for the CFunctionDescriptor.

Also, the first time you call it, it will automatically invoke 
#defineExternFunc: and call the gtk function.

Paolo