Re[2]: [Haskell-cafe] Drawing an existing image into a cairo surface?

Hello Rafal, Sunday, September 21, 2008, 5:43:14 PM, you wrote:

withImageSurfaceFromPNG file $ \png -> do w <- renderWith png $ imageSurfaceGetWidth png h <- renderWith png $ imageSurfaceGetHeight png

this is very idiomatic Haskell, consider it as a sort of RAII. you may even omit additional tab here:

withImageSurfaceFromPNG file $ \png -> do w <- renderWith png $ imageSurfaceGetWidth png h <- renderWith png $ imageSurfaceGetHeight png ...

afair, Render is a super-IO monad so you can just lift any IO operation to Render: x <- liftIO$ imageSurfaceCreateFromPNG file -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com