My question is how to indicate in a .vapi that the target of a
delegate is in a certain position.
Let me explain first my case:
The omx callbacks do not receive the target in the last position, but
in the second (app_data):
public delegate Error EmptyBufferDoneFunc(
Handle component,
void *app_data,
BufferHeader buffer);
And, the callbacks are not added one by one, but as a whole using
a struct of callbacks:
public struct Callback {
public EventHandlerFunc EventHandler;
public EmptyBufferDoneFunc EmptyBufferDone;
public FillBufferDoneFunc FillBufferDone;
}
And that struct is passed as an argument to a call:
public Error get_handle(out Handle component, string
component_name, void *app_data, Callback callbacks);
So, I want vala to pass the hidden instance pointer (this) to the
callbacks, in the position of app_data.
So, for global functions, app_data would become NULL and for methos
app_data would be this.
That way instance methods could be used as callbacks, instead of
static or global functions.
How to do that?
Thanks in advance.
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