GENiALi's Blog

if (item.Icon.Length > 0)
{
	stdole.IPictureDisp pic = GetImage(item.Icon);

	if (pic != null)
	{
		cbc.Picture = pic;
	}
}

private stdole.IPictureDisp GetImage(string imageName)
{
	stdole.IPictureDisp pic = null;
	string file = Path.Combine(iconPath, imageName);
	if (File.Exists(file))
	{
		try
		{
			pic = PictureConverter.
				ImageToPictureDisp(Image.FromFile(file));
		}
		catch (Exception ex)
		{
			//Hier Fehler
		}
	}
	return pic;
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace LAG.WordPlus.OfficeAddIns.Word2003
{
	public class PictureConverter : AxHost
	{
		public PictureConverter() : base(string.Empty)
		{
		}
		public static stdole.IPictureDisp ImageToPictureDisp(Image image)
		{
			return (stdole.IPictureDisp)GetIPictureDispFromPicture(image);
		}
		public static stdole.IPictureDisp IconToPictureDisp(Icon icon)
		{
			return ImageToPictureDisp(icon.ToBitmap());
		}
		public static Image PictureDispToImage(stdole.IPictureDisp picture)
		{
			return GetPictureFromIPicture(picture);
		}
	}
}

if (item.Icon.Length > 0)
{
	stdole.IPictureDisp pic = GetImage(item.Icon);
	if (pic != null)
	{
		cbc.Picture = pic;
		SetImage(cbc, item.Icon);
	}
}

private void SetImage(CommandBarButton button, string icon)
{
	try
	{
		Bitmap bmp = new Bitmap(Path.Combine(iconPath, icon));
		IntPtr Hicon = bmp.GetHicon();
		Icon newIcon = Icon.FromHandle(Hicon);

		ImageList newImageList = new ImageList();
		newImageList.ColorDepth = ColorDepth.Depth8Bit;
		newImageList.ImageSize = new Size(16, 16);
		newImageList.Images.Add(newIcon);

		button.Picture = PictureConverter.
				ImageToPictureDisp(newImageList.Images[0]);
		Bitmap mask = (Bitmap)newImageList.Images[0].Clone();

		for (int x = 0; x < 16; x++)
		{
			for (int y = 0; y < 16; y++)
			{
				mask.SetPixel(x, y, (mask.GetPixel(x, y) 
					== Color.Transparent
					|| mask.GetPixel(x, y).Name == "0") 
					? Color.White : Color.Black);
			}
		}
		button.Mask = PictureConverter.ImageToPictureDisp(mask);
	}
	catch (Exception ex)
	{
		//Fehlerbehandlung
	}
}