doc `has-alpha-channel?' method

2011-08-21 21:19:50 -06:00 · 2011-08-21 21:19:50 -06:00 · fc5fc02e5e
commit fc5fc02e5e
parent e39abf17da
1 changed files with 8 additions and 0 deletions
--- a/collects/scribblings/draw/bitmap-class.scrbl
+++ b/collects/scribblings/draw/bitmap-class.scrbl
@ -132,6 +132,14 @@ Gets the width of the bitmap in pixels.

 }

+@defmethod[(has-alpha-channel?)
+           boolean?]{
+
+Returns @racket[#t] if the bitmap has an alpha channel,
+@racket[#f] otherwise.
+
+}
+
@defmethod[(is-color?)
           boolean?]{