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// Microsoft Office Outlook 2007 Add-in Sample Code
//
// THIS CODE AND INFORMATION ARE PROVIDED AS IS WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
//
// Added 7/2010 by Adam Ernst. Note:
// If Microsoft makes any code marked as “sample” available on this Web Site
// without a License Agreement, then that code is licensed to you under
// the terms of the Microsoft Limited Public License.
using System;
using System.Drawing;
using System.Collections.Generic;
using System.Runtime.InteropServices;
public static class PictureDispConverter
{
//IPictureDisp guid
public static Guid iPictureDispGuid = typeof(stdole.IPictureDisp).GUID;
/// Converts an Icon into a IPictureDisp
public static stdole.IPictureDisp ToIPictureDisp(Icon icon)
{
PICTDESC.Icon pictIcon = new PICTDESC.Icon(icon);
return PictureDispConverter.OleCreatePictureIndirect(pictIcon, ref iPictureDispGuid, true);
}
/// Converts an image into a IPictureDisp
public static stdole.IPictureDisp ToIPictureDisp(Image image)
{
Bitmap bitmap = (image is Bitmap) ? (Bitmap)image : new Bitmap(image);
PICTDESC.Bitmap pictBit = new PICTDESC.Bitmap(bitmap);
return PictureDispConverter.OleCreatePictureIndirect(pictBit, ref iPictureDispGuid, true);
}
[DllImport("OleAut32.dll", EntryPoint = "OleCreatePictureIndirect", ExactSpelling = true, PreserveSig = false)]
private static extern stdole.IPictureDisp OleCreatePictureIndirect([MarshalAs(UnmanagedType.AsAny)] object picdesc, ref Guid iid, bool fOwn);
private readonly static HandleCollector handleCollector = new HandleCollector("Icon handles", 1000);
// WINFORMS COMMENT:
// PICTDESC is a union in native, so we'll just
// define different ones for the different types
// the "unused" fields are there to make it the right
// size, since the struct in native is as big as the biggest
// union.
private static class PICTDESC
{
//Picture Types
public const short PICTYPE_UNINITIALIZED = -1;
public const short PICTYPE_NONE = 0;
public const short PICTYPE_BITMAP = 1;
public const short PICTYPE_METAFILE = 2;
public const short PICTYPE_ICON = 3;
public const short PICTYPE_ENHMETAFILE = 4;
[StructLayout(LayoutKind.Sequential)]
public class Icon
{
internal int cbSizeOfStruct = Marshal.SizeOf(typeof(PICTDESC.Icon));
internal int picType = PICTDESC.PICTYPE_ICON;
internal IntPtr hicon = IntPtr.Zero;
internal int unused1 = 0;
internal int unused2 = 0;
internal Icon(System.Drawing.Icon icon)
{
this.hicon = icon.ToBitmap().GetHicon();
}
}
[StructLayout(LayoutKind.Sequential)]
public class Bitmap
{
internal int cbSizeOfStruct = Marshal.SizeOf(typeof(PICTDESC.Bitmap));
internal int picType = PICTDESC.PICTYPE_BITMAP;
internal IntPtr hbitmap = IntPtr.Zero;
internal IntPtr hpal = IntPtr.Zero;
internal int unused = 0;
internal Bitmap(System.Drawing.Bitmap bitmap)
{
this.hbitmap = bitmap.GetHbitmap();
}
}
}
}
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