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Viewing changes to external/xwt/Xwt.WPF/Xwt.WPFBackend.Interop/NativeMethods.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt.WPF/Xwt.WPFBackend.Interop/NativeMethods.cs
 
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// 
 
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// NativeMethods.cs
 
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//  
 
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// Author:
 
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//       Eric Maupin <ermau@xamarin.com>
 
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// 
 
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// Copyright (c) 2012 Xamarin, Inc.
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using System.Runtime.InteropServices;
 
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using System.Windows;
 
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using System.Windows.Interop;
 
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using System.Windows.Media.Imaging;
 
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namespace Xwt.WPFBackend.Interop
 
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{
 
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        internal static class NativeMethods
 
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        {
 
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                [StructLayout (LayoutKind.Sequential, CharSet = CharSet.Unicode)]
 
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                struct StockIconInfo
 
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                {
 
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                        internal uint StructureSize;
 
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                        internal IntPtr Handle;
 
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                        internal int ImageIndex;
 
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                        internal int Indentifier;
 
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                        [MarshalAs (UnmanagedType.ByValTStr, SizeConst = 260)]
 
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                        internal string Path;
 
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                }
 
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                [DllImport ("Shell32.dll", CharSet = CharSet.Unicode)]
 
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                static extern int SHGetStockIconInfo (NativeStockIcon icon, NativeStockIconOptions options,
 
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                                                               ref StockIconInfo info);
 
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                [DllImport ("User32.dll", SetLastError = true)]
 
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                static extern bool DestroyIcon (IntPtr handle);
 
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                internal static BitmapSource GetImage (NativeStockIcon icon, NativeStockIconOptions options)
 
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                {
 
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                        options |= NativeStockIconOptions.Handle;
 
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                        StockIconInfo info = new StockIconInfo();
 
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                        info.StructureSize = (uint) Marshal.SizeOf (typeof (StockIconInfo));
 
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                        int hresult = SHGetStockIconInfo (icon, options, ref info);
 
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                        if (hresult < 0)
 
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                                throw new COMException ("SHGetStockIconInfo failed", hresult);
 
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                        BitmapSource bitmap;
 
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                        try {
 
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                                bitmap = Imaging.CreateBitmapSourceFromHIcon (info.Handle, Int32Rect.Empty, null);
 
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                        }
 
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                        finally {
 
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                                DestroyIcon (info.Handle);
 
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                        }
 
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                        return bitmap;
 
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                }
 
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        }
 
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}
 
 
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