-----------------------------------------------------------------------
-- GtkAda - Ada95 binding for Gtk+/Gnome --
-- --
-- Copyright (C) 2010, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public --
-- License as published by the Free Software Foundation; either --
-- version 2 of the License, or (at your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public --
-- License along with this library; if not, write to the --
-- Free Software Foundation, Inc., 59 Temple Place - Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-----------------------------------------------------------------------
--
-- Reading and writing PNG images.
--
--
-- 1.8.8
-- Cairo
package Cairo.Png is
function Write_To_Png
(Surface : Cairo_Surface;
Filename : String)
return Cairo_Status;
-- Surface: a Cairo_Surface with pixel contents
-- Filename: the name of a file to write to
--
-- Writes the contents of surface to a new file filename as a PNG
-- image.
--
-- Return value: Cairo_Status_Success if the PNG file was written
-- successfully. Otherwise, Cairo_Status_No_Memory if memory could not
-- be allocated for the operation or
-- Cairo_Status_Surface_Type_Mismatch if the surface does not have
-- pixel contents, or Cairo_Status_Write_Error if an I/O error occurs
-- while attempting to write the file.
function Create_From_Png
(Filename : String)
return Cairo_Surface;
-- Filename: name of PNG file to load
--
-- Creates a new image surface and initializes the contents to the
-- given PNG file.
--
-- Return value: a new Cairo_Surface initialized with the contents
-- of the PNG file, or a "nil" surface if any error occurred. A nil
-- surface can be checked for with Cairo.Surface.Status (Surface) which
-- may return one of the following values:
--
-- Cairo_Status_No_Memory
-- Cairo_Status_File_Not_Found
-- Cairo_Status_Read_Error
--
-- Alternatively, you can allow errors to propagate through the drawing
-- operations and check the status on the context upon completion
-- using Cairo_Status.
end Cairo.Png;