On Apr 19, 2010, at 7:46 AM, Kevin Walzer wrote:
> I'm trying to port some Carbon code that provides basic services menu
> integration to a Cocoa application. This code implements the basic Carbon
> event handlers for this functionality, cf:
>
> const EventTypeSpec carbonServiceEvents[] = {
> { kEventClassService, kEventServiceGetTypes },
> { kEventClassService, kEventServiceCopy },
> { kEventClassService, kEventServicePaste },
> { kEventClassService, kEventServicePerform }
> };
>
>
> I understand that Cocoa has its own NSServices protocol/API, but these
> particular events and the Pasteboard API are still supported and not
> deprecated under Cocoa and 64-bit. The basic structure is here:
>
> http://developer.apple.com/carbon/pasteboards.html
>
> The code is mostly working: other applications can send clipboard data to my
> app's service, and it will function as expected. However, inside my
> application, the kEventServiceCopy event never fires. As a result, the
> Services menu is completely grayed out.
>
> I'm not sure how to fix this. In my Carbon application, simply installing
> these event handlers made the Services menu available. It's not clear to me
> why the kEventServiceCopy event does not fire, but the kEventServiceGetTypes
> event (necessary to determine if my app provides a service) and
> kEventServicePerform (to perform the service) do fire.
>
> Any advice is appreciated.
>
> --Kevin
Hi Kevin,
These events only fire in an app with a Carbon menu bar. If your menu bar is
Cocoa (that is, you install it with -[NSApplication setMainMenu:]) then you
will need to implement the Cocoa Services APIs.
-Peter
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