Re: Raster operations

[Ivan Baldo <ibaldo adinet com uy>]

   Have you looked at Cairo? Instead of using GDK you can use Cairo.
   Unfortunately I don't know anything about ROP2, ROP3, Porter and 
Duff, I don't know what they are, but using Cairo is easy and seems more 
powerful than GDK to me, I use a GtkDrawingArea too (but drawing with 
Cairo of course).
   Hope this helps.
   Bye.



El 10/07/06 23:45, Asela Leelaratne escribió:

> Hello List members,
>
> I am Asela this is my first email to the list. I just started developing
> a small application in C language uisng the Gtk+2.0 library. I need some
> information on the Gtk+ (of GDK) api's. I will be very greatefull if
> someone can help me. ( Since I am a newbie an explanation in the most
> simplest way is much appreciated).
>
> I am currentrly developing a program to render a vector image to screen.
> (The image is in XML data) The method I use is; first create a Gtk draw
> widget then draw polygons and lines in to a Gdk pixmap usind Gdk drawing
> api's and draw the Gdk pixmap on the Gtk draw widget. Then show it on a
> window.
>
> The problem is I need to do some raster operations like ROP2, ROP3,
> Porter and Duff etc... Are there any api's in Gtk(or Gdk) to achive it?
> If not is there a library or something that I can use(C language)?
> If both the above is not possible is there a standard method to do the
> above operations(C language, GDK and Gtk widgets)?
>
> Thank you for your time.
> Asela.
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>
>  

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