private void OnDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser browser = (sender as WebBrowser);
if (browser != null)
{
mshtml.IHTMLDocument2 document = (browser.Document.DomDocument as mshtml.IHTMLDocument2);
if (document != null)
{
int width = browser.Document.Body.ScrollRectangle.Width;
int height = browser.Document.Body.ScrollRectangle.Height;
browser.Width = width;
browser.Height = height;
mshtml.IHTMLElement element = (document.body as mshtml.IHTMLElement);
if (element != null)
{
IViewObject viewObject = (document as IViewObject);
if (viewObject != null) {
using (Graphics graphics = this.CreateGraphics())
{
IntPtr hdcDestination = graphics.GetHdc();
IntPtr hdcMemory = GDI32.CreateCompatibleDC(hdcDestination);
IntPtr bitmap = GDI32.CreateCompatibleBitmap(hdcDestination, width, height);
IntPtr hOld = (IntPtr)GDI32.SelectObject(hdcMemory, bitmap);
RECTL rect = new RECTL();
rect.left = 0;
rect.top = 0;
rect.right = width;
rect.bottom = height;
viewObject.Draw(
DVASPECT.DVASPECT_CONTENT,
-1,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
hdcMemory,
ref rect,
ref rect,
IntPtr.Zero,
(uint) 0);
GDI32.SelectObject(hdcMemory, hOld);
GDI32.DeleteDC(hdcMemory);
graphics.ReleaseHdc(hdcDestination);
SaveThumbnail(Image.FromHbitmap(bitmap));
}
}
}
}
}
this.Dispose();
}
protected Rectangle GetThumbRect()
{
RECTL rectl = new RECTL();
IntPtr lParam = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RECTL)));
Marshal.StructureToPtr(rectl, lParam, false);
SendMessage(Handle, TBM_GETTHUMBRECT, 0, lParam.ToInt32());
rectl = (RECTL)Marshal.PtrToStructure(lParam, typeof(RECTL));
Rectangle result = new Rectangle(rectl.left, rectl.top, rectl.right - rectl.left, rectl.bottom - rectl.top);
Marshal.FreeHGlobal(lParam);
return result;
}
protected Rectangle GetThumbRect()
{
RECTL rectl = new RECTL();
IntPtr lParam = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(RECTL)));
Marshal.StructureToPtr(rectl, lParam, false);
SendMessage(Handle, TBM_GETTHUMBRECT, 0, lParam.ToInt32());
rectl = (RECTL)Marshal.PtrToStructure(lParam, typeof(RECTL));
Rectangle result = new Rectangle(rectl.left, rectl.top, rectl.right - rectl.left, rectl.bottom - rectl.top);
Marshal.FreeHGlobal(lParam);
return(result);
}
/// <summary>
/// The web browser document completed event handler which creates the screenshot for
/// the correct URL.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="WebBrowserDocumentCompletedEventArgs"/> instance containing the event data.</param>
private static void WebBrowserDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
if (e.Url == newTargetUrl)
{
var localBrowser = (WebBrowser)sender;
if (localBrowser.Document == null)
{
return;
}
try
{
// Reset window to default size
Size scrollSize = Document.ActiveDocument.PresentationSize;
// ! This line is critical to receive correct scroll sizes
// in the next step
localBrowser.ClientSize = Document.ActiveDocument.PresentationSize;
// Get maximal sizes
GetMaxScrollSizeOfDocument(localBrowser.Document, ref scrollSize);
if (localBrowser.Document.Window != null)
{
GetLargestScrollSizeOfAllFrames(localBrowser.Document.Window.Frames, ref scrollSize);
}
// Now update the clientsize to full size, not screen size
localBrowser.ClientSize = scrollSize;
// create a bitmap object
var bitmap = new Bitmap(scrollSize.Width, scrollSize.Height);
// get the viewobject of the WebBrowser to draw to bitmap
var ivo = localBrowser.Document.DomDocument as IViewObject;
using (Graphics g = Graphics.FromImage(bitmap))
{
// get the handle to the device context and draw
IntPtr hdc = g.GetHdc();
if (ivo != null)
{
// get the size of the document's body
var docRectangle = new RECTL { top = 0, left = 0, right = scrollSize.Width, bottom = scrollSize.Height };
ivo.Draw(
DVASPECT.DVASPECT_CONTENT,
-1,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
hdc,
ref docRectangle,
ref docRectangle,
IntPtr.Zero,
0);
}
g.ReleaseHdc(hdc);
}
// Alternative to IViewObject, not allowed but works...
//// localBrowser.DrawToBitmap(bitmap, new Rectangle(0, 0, scrollSize.Width, scrollSize.Height));
string filename = Path.Combine(
Document.ActiveDocument.ExperimentSettings.SlideResourcesPath,
newScreenshotFilename);
bitmap.Save(filename, ImageFormat.Png);
bitmap.Dispose();
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
}
}
}
/// <summary>
/// The web browser document completed event handler which creates the screenshot for
/// the correct URL.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="WebBrowserDocumentCompletedEventArgs"/> instance containing the event data.</param>
private static void WebBrowserDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
if (e.Url == newTargetUrl)
{
var localBrowser = (WebBrowser)sender;
if (localBrowser.Document == null)
{
return;
}
try
{
// Reset window to default size
Size scrollSize = Document.ActiveDocument.PresentationSize;
// ! This line is critical to receive correct scroll sizes
// in the next step
localBrowser.ClientSize = Document.ActiveDocument.PresentationSize;
// Get maximal sizes
GetMaxScrollSizeOfDocument(localBrowser.Document, ref scrollSize);
if (localBrowser.Document.Window != null)
{
GetLargestScrollSizeOfAllFrames(localBrowser.Document.Window.Frames, ref scrollSize);
}
// Now update the clientsize to full size, not screen size
localBrowser.ClientSize = scrollSize;
// create a bitmap object
var bitmap = new Bitmap(scrollSize.Width, scrollSize.Height);
// get the viewobject of the WebBrowser to draw to bitmap
var ivo = localBrowser.Document.DomDocument as IViewObject;
using (Graphics g = Graphics.FromImage(bitmap))
{
// get the handle to the device context and draw
IntPtr hdc = g.GetHdc();
if (ivo != null)
{
// get the size of the document's body
var docRectangle = new RECTL {
top = 0, left = 0, right = scrollSize.Width, bottom = scrollSize.Height
};
ivo.Draw(
DVASPECT.DVASPECT_CONTENT,
-1,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
hdc,
ref docRectangle,
ref docRectangle,
IntPtr.Zero,
0);
}
g.ReleaseHdc(hdc);
}
// Alternative to IViewObject, not allowed but works...
//// localBrowser.DrawToBitmap(bitmap, new Rectangle(0, 0, scrollSize.Width, scrollSize.Height));
string filename = Path.Combine(
Document.ActiveDocument.ExperimentSettings.SlideResourcesPath,
newScreenshotFilename);
bitmap.Save(filename, ImageFormat.Png);
bitmap.Dispose();
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
}
}
}
/// <summary>
/// This method is the kernel of this class and draws the flash activeX
/// com object surface in the current state to the given <see cref="Graphics"/>.
/// </summary>
/// <remarks>Note that the <see cref="IViewObject"/> is the key to
/// provide us with a method to draw a com object on a graphics, without beeing visible itself.</remarks>
/// <param name="graphics">The <see cref="Graphics"/> to draw to.</param>
/// <param name="elementBounds">The <see cref="RectangleF"/> to draw into.</param>
private void DrawFlashObject(Graphics graphics, RectangleF elementBounds)
{
// Sanity check
if (this.flashControl == null)
{
return;
}
// Some painting calls can occur when this object is beeing disposed.
if (this.disposing)
{
return;
}
// Transform size and location with the current transform
PointF newSize = new PointF(elementBounds.Width, elementBounds.Height);
PointF[] mousePts = { newSize, elementBounds.Location };
this.currentTransform.TransformPoints(mousePts);
Point scaledSize = Point.Round(mousePts[0]);
Point scaledLocation = Point.Round(mousePts[1]);
// Grab IViewObject interface from the ocx.
Tools.Interfaces.IViewObject viewObject =
(Tools.Interfaces.IViewObject)this.flashControl.GetOcx();
// Check for success
if (viewObject == null)
{
return;
}
int hr = -1;
// Set up RECTL structure
RECTL bounds = new RECTL();
bounds.left = scaledLocation.X;
bounds.top = scaledLocation.Y;
bounds.right = scaledLocation.X + scaledSize.X;
bounds.bottom = scaledLocation.Y + scaledSize.Y;
// get hdc
IntPtr hdc = graphics.GetHdc();
// Draw
hr = viewObject.Draw(
DVASPECT.DVASPECT_CONTENT,
-1,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
hdc,
ref bounds,
ref bounds,
IntPtr.Zero,
(uint)0);
// Release HDC
graphics.ReleaseHdc(hdc);
}
/// <summary>
/// This method is the kernel of this class and draws the flash activeX
/// com object surface in the current state to the given <see cref="Graphics"/>.
/// </summary>
/// <remarks>Note that the <see cref="IViewObject"/> is the key to
/// provide us with a method to draw a com object on a graphics, without beeing visible itself.</remarks>
/// <param name="graphics">The <see cref="Graphics"/> to draw to.</param>
/// <param name="elementBounds">The <see cref="RectangleF"/> to draw into.</param>
private void DrawFlashObject(Graphics graphics, RectangleF elementBounds)
{
// Sanity check
if (this.flashControl == null)
{
return;
}
// Some painting calls can occur when this object is beeing disposed.
if (this.disposing)
{
return;
}
// Transform size and location with the current transform
PointF newSize = new PointF(elementBounds.Width, elementBounds.Height);
PointF[] mousePts = { newSize, elementBounds.Location };
this.currentTransform.TransformPoints(mousePts);
Point scaledSize = Point.Round(mousePts[0]);
Point scaledLocation = Point.Round(mousePts[1]);
// Grab IViewObject interface from the ocx.
Tools.Interfaces.IViewObject viewObject =
(Tools.Interfaces.IViewObject) this.flashControl.GetOcx();
// Check for success
if (viewObject == null)
{
return;
}
int hr = -1;
// Set up RECTL structure
RECTL bounds = new RECTL();
bounds.left = scaledLocation.X;
bounds.top = scaledLocation.Y;
bounds.right = scaledLocation.X + scaledSize.X;
bounds.bottom = scaledLocation.Y + scaledSize.Y;
// get hdc
IntPtr hdc = graphics.GetHdc();
// Draw
hr = viewObject.Draw(
DVASPECT.DVASPECT_CONTENT,
-1,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
hdc,
ref bounds,
ref bounds,
IntPtr.Zero,
(uint)0);
// Release HDC
graphics.ReleaseHdc(hdc);
}
static private string RECTLToString(RECTL rectL)
{
return("L: " + rectL.left + " T: " + rectL.top + " R: " + rectL.right + " B: " + rectL.bottom);
}
