Using mailing list posts and bug fixes as hints, I've been freaking
about the glade example from http://live.gnome.org/Vala/GladeSample
I'm still having trouble calling GLib.Signal.connect.
If I pass argument 3 as an actual GLib.Callback variable then that line
is fine, but the original typecast:
, (GLib.Callback) sym,
failed with: Invalid type for argument 3
If I merely remove the typecast I get:
error: Argument 3: Cannot convert from `void*' to `GLib.Callback'
So we know what the type should be.
I try my own casting (see below) but get:
Assignment: Invalid callback assignment attempt
[InstanceLast]
public void connect_signals(string handler_name, GLib.Object
object, string signal_name, string signal_data, GLib.Object
connect_object, bool after) {
Module module = Module.open(null, ModuleFlags.BIND_LAZY);
void* sym;
GLib.Callback? cb;
if(!module.symbol(handler_name, out sym)) {
stdout.printf("Symbol not found!\n");
} else {
cb=(GLib.Callback) sym;
GLib.Signal.connect(object, signal_name, cb, this);
}
}
I'm interested in what is stopping what would be a boring C typecast
from working.
Sam
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