SaveThumbnail(Image.FromHbitmap(bitmap)); } } } } } } } Once we have the image, it is then a simple matter create and save a thumbnail:private void SaveThumbnail(Image image) { if (image != null) { Bitmap thumbnail = new Bitmap(160, 120, PixelFormat.Format24bppRgb); thumbnail.SetResolution(image.HorizontalResolution, image.VerticalResolution);
using (Graphics resize = Graphics.FromImage(thumbnail)) { resize.InterpolationMode = InterpolationMode.HighQualityBicubic; resize.DrawImage(image, new Rectangle(0, 0, 160, 120), new Rectangle(0, 0, _webBrowser.ClientRectangle.Width, _webBrowser.ClientRectangle.Height), GraphicsUnit.Pixel); } thumbnail.Save(_file.FullName, ImageFormat.Png); } }
{
WebBrowser browser = (sender as WebBrowser);
if (browser != null)
{
mshtml.IHTMLDocument2 document = (browser.Document.DomDocument as mshtml.IHTMLDocument2);
if (document != null)
{
mshtml.IHTMLElement element = (document.body as mshtml.IHTMLElement);
if (element != null)
{
IHTMLElementRender render = (element as IHTMLElementRender);
if (render != null)
{
using (Graphics graphics = this.CreateGraphics())
{
IntPtr hdcDestination = graphics.GetHdc();
render.DrawToDC(hdcDestination);
IntPtr hdcMemory = GDI32.CreateCompatibleDC(hdcDestination);
IntPtr bitmap = GDI32.CreateCompatibleBitmap(
hdcDestination,
browser.ClientRectangle.Width,
browser.ClientRectangle.Height
);
if (bitmap != IntPtr.Zero)
{
IntPtr hOld = (IntPtr)GDI32.SelectObject(hdcMemory, bitmap);
GDI32.BitBlt(
hdcMemory,
0, 0,
browser.ClientRectangle.Width, browser.ClientRectangle.Height,
hdcDestination,
0, 0,
TernaryRasterOperations.SRCCOPY
);
GDI32.SelectObject(hdcMemory, hOld);
GDI32.DeleteDC(hdcMemory);
graphics.ReleaseHdc(hdcDestination);
SaveThumbnail(Image.FromHbitmap(bitmap));
}
}
}
}
}
}
} Once we have the image, it is then a simple matter create and save a thumbnail:private void SaveThumbnail(Image image)
{
if (image != null)
{
Bitmap thumbnail = new Bitmap(160, 120, PixelFormat.Format24bppRgb);
thumbnail.SetResolution(image.HorizontalResolution, image.VerticalResolution);
using (Graphics resize = Graphics.FromImage(thumbnail))
{
resize.InterpolationMode = InterpolationMode.HighQualityBicubic;
resize.DrawImage(image,
new Rectangle(0, 0, 160, 120),
new Rectangle(0, 0, _webBrowser.ClientRectangle.Width, _webBrowser.ClientRectangle.Height),
GraphicsUnit.Pixel);
}
thumbnail.Save(_file.FullName, ImageFormat.Png);
}
}