Re: how to receive a Cocoa drag in a Carbon app using regular Drag Manager?

FROM : Daniel Morrow
DATE : Wed Oct 13 17:19:34 2004

On Oct 13, 2004, at 10:39 AM, Avi Drissman wrote:

> On Oct 13, 2004, at 10:22 AM, Daniel Morrow wrote:
>

>> I ask it how many items are in the dragref. It tells me 1, so far, so
>> good. Next I get the DragItemRef, and it oddly always has the address
>> "0x000C0C0A". Which is amusing. But I really need to get the data out
>> of it.

>
> So just use the usual GetFlavorFlags, GetFlavorData, and the like.
> Just because the DragItemRef is a funny number doesn't mean that it's
> invalid.
>
> Avi (who's written an InDesign plugin that does drag receives)
>

Ok, well that's fine, except when I call "CountDragItemFlavors" I get
returned 0.

Now, in Cocoa, AFAIK, there is no way to add a "flavor" with a 4-char
code to a drag.

Basically, my cocoa code looks like this:

   [pboard declareTypes:[NSArray arrayWithObject:@"IsGm"] owner:nil];
   BOOL result = [pboard setString:@"10111" forType:@"IsGm"];

I'm trying to pass custom data, so I'm declaring a data type "IsGm".
Then I'm adding a string, "10111" to it. This string will change to a
different block of data in the future, which is why I'm not using a
predefined type like "NSStringPboardType", because I don't want to
watch for all text being dropped on my app, I just want to watch for my
special block of data, being dropped on the app.

Anyway, when I do this, CountDragItemFlavors is always 0. I'd think it
should be 1, but this is not the case.

Thanks for any help in this matter,
-Dan.