/// <summary>
/// Construct a IPicture from an array of bytes
/// returned IPicture is tagged to be owned by NativeCode, which should dispose of it.
/// </summary>
public IPicture ImageFromBytes(byte[] pbData, int cbData)
{
var ret = ImagePicture.ImageBytes(pbData, cbData);
ret.ReferenceOwnedByNative = true;
return(ret);
}
/// <summary>
/// Construct a ImagePicture from a C# Image object
/// </summary>
public static ImagePicture FromImage(Image img)
{
ImagePicture ret = new ImagePicture();
ret.m_img = (Image)img.Clone();
return(ret);
}
/// <summary>
/// convert an Image to an OLE Picture IPictureDisp interface
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static IPictureDisp ToOLE_IPictureDisp(Image image)
{
if (Platform.IsWindows)
{
return(AxHost.GetIPictureDispFromPicture(image) as IPictureDisp);
}
return(ImagePicture.FromImage(image));
}
/// <summary>
/// Construct a ImagePicture from an array of bytes
/// </summary>
public static ImagePicture ImageBytes(byte[] pbData, int cbData)
{
using (var s = new MemoryStream(pbData, 0, cbData))
{
ImagePicture ret = new ImagePicture();
ret.m_img = Image.FromStream(s);
return(ret);
}
}
public void ImagePictureClass()
{
const int width = 100;
const int height = 200;
using (Image testImage = new Bitmap(width, height))
{
using (ImagePicture i = ImagePicture.FromImage(testImage))
{
Assert.AreEqual(new HiMetric(width, i.DpiX).Value, i.Width, "A1");
Assert.AreEqual(new HiMetric(height, i.DpiY).Value, i.Height, "A2");
}
}
}