Cherrypick Merge, Backport of [6223d9e067]. Restored from

	tk-cocoa-8-5-bacport-branch, did not survive the merge.
	See trunk 2012-05-29 Donal K. Fellows

	* generic/tkInt.decls (TkMacOSXDrawable): Added OSX-specific mechanism
	to allow retrieval of the drawing surface. Allows Canvas3d to be
	adapted to 8.6.

1 files changed, 7 insertions, 0 deletions

diff --git a/macosx/tkMacOSXSubwindows.c b/macosx/tkMacOSXSubwindows.c
index 2eb4ee8..7d1a5eb 100644
--- a/macosx/tkMacOSXSubwindows.c
+++ b/macosx/tkMacOSXSubwindows.c
@@ -971,6 +971,13 @@ TkMacOSXDrawableWindow(
     }
     return result;
 }
+
+void *
+TkMacOSXDrawable(
+    Drawable drawable)
+{
+    return TkMacOSXDrawableWindow(drawable);
+}
 
 /*
  *----------------------------------------------------------------------