Re: Embedding on the Mac Carbon OS 10.2 - native handle?

[Kevin Ollivier]

Currently, you would need to create your own nsIWidget and then call  
its Create method with the WindowRef for your application window. Once  
you have done that, you pass in your nsIWidget into  
nsIBaseWindow->InitWindow. However, there is a patch for Mac embedding  
that will allow you to pass in the WindowRef of the application window  
into nsIBaseWindow->InitWindow rather than creating an nsIWidget.

You can find the patch here:

http://bugzilla.mozilla.org/show_bug.cgi?id=161623 (see the second  
attachment for the patch)

However, the patch has been there for quite some time and it may need  
some manual tweaking to apply it. I'm not sure why this code has not  
been integrated into Mozilla yet, as passing the application window's  
native handle into nsIBaseWindow->InitWindow is standard behavior for  
other platforms, and it's more complicated to have to create an  
nsIWidget only on Mac.

Kevin

On Thursday, May 29, 2003, at 07:34  AM, Kentucky wrote:

What type of native handle should be passed to the XPCOM call
nsIBaseWindow->InitWindow(?,...) on the Mac?
The PowerPlant PPEmbed sample contains this line in CBrowserShell.cpp

mWebBrowserAsBaseWin->InitWindow(aWidget- 
>GetNativeData(NS_NATIVE_WIDGET),
nsnull, r.x, r.y, r.width, r.height);

The aWidget is created in 'EnsureTopLevelWidget':
nsCOMPtr<nsIWidget> newWidget(do_CreateInstance(kWindowCID, &rv));
...
rv = newWidget->Create(GetMacWindow(), r, nsnull, nsnull, nsnull,
nsnull, nsnull);
But it's still not clear which kind of handle I could pass on my own
app? Can I use the handle of an existing application window, not
created through do_CreateInstance(kWindowCID, &rv)) ?
Chris