/// <summary>Saves the HTML contained in control to a string and return it.</summary>
/// <returns>string - The HTML in the control</returns>
public string SaveHtml()
{
if (!this.IsCreated)
{
throw new Exception("HtmlControl.SaveHtml : No HTML to save!");
}
string content = String.Empty;
try
{
NativeMethods.IHTMLDocument2 document = this.site.Document;
// First save the document to a stream
NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)document;
Debug.Assert(psi != null, "Expected IPersistStreamInit");
NativeMethods.IStream stream = null;
NativeMethods.CreateStreamOnHGlobal(NativeMethods.NullIntPtr, true, out stream);
psi.Save(stream, 1);
// Now copy the stream to the string
NativeMethods.STATSTG stat = new NativeMethods.STATSTG();
stream.Stat(stat, 1);
int length = (int)stat.cbSize;
byte[] bytes = new byte[length];
IntPtr hglobal;
NativeMethods.GetHGlobalFromStream(stream, out hglobal);
Debug.Assert(hglobal != NativeMethods.NullIntPtr, "Failed in GetHGlobalFromStream");
// First copy the stream to a byte array
IntPtr pointer = NativeMethods.GlobalLock(hglobal);
if (pointer != NativeMethods.NullIntPtr)
{
Marshal.Copy(pointer, bytes, 0, length);
NativeMethods.GlobalUnlock(hglobal);
// Then create the string from the byte array (use a StreamReader to eat the preamble in the UTF8 encoding case)
StreamReader streamReader = null;
try
{
streamReader = new StreamReader(new MemoryStream(bytes), Encoding.Default);
content = streamReader.ReadToEnd();
}
finally
{
if (streamReader != null)
{
streamReader.Close();
}
}
}
}
catch (Exception exception)
{
Debug.Fail("HtmlControl.SaveHtml" + exception.ToString());
content = String.Empty;
}
finally
{
}
if (content == null)
{
content = String.Empty;
}
return(content);
/*
* HtmlFormatter formatter = new HtmlFormatter();
* StringWriter writer = new StringWriter();
* formatter.Format(content, writer);
* return writer.ToString();
*/
}
/// <summary>Saves the HTML contained in control to a string and return it.</summary>
/// <returns>string - The HTML in the control</returns>
public string SaveHtml()
{
if (!this.IsCreated)
{
throw new Exception("HtmlControl.SaveHtml : No HTML to save!");
}
string content = String.Empty;
try
{
NativeMethods.IHTMLDocument2 document = this.site.Document;
// First save the document to a stream
NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)document;
Debug.Assert(psi != null, "Expected IPersistStreamInit");
NativeMethods.IStream stream = null;
NativeMethods.CreateStreamOnHGlobal(NativeMethods.NullIntPtr, true, out stream);
psi.Save(stream, 1);
// Now copy the stream to the string
NativeMethods.STATSTG stat = new NativeMethods.STATSTG();
stream.Stat(stat, 1);
int length = (int)stat.cbSize;
byte[] bytes = new byte[length];
IntPtr hglobal;
NativeMethods.GetHGlobalFromStream(stream, out hglobal);
Debug.Assert(hglobal != NativeMethods.NullIntPtr, "Failed in GetHGlobalFromStream");
// First copy the stream to a byte array
IntPtr pointer = NativeMethods.GlobalLock(hglobal);
if (pointer != NativeMethods.NullIntPtr)
{
Marshal.Copy(pointer, bytes, 0, length);
NativeMethods.GlobalUnlock(hglobal);
// Then create the string from the byte array (use a StreamReader to eat the preamble in the UTF8 encoding case)
StreamReader streamReader = null;
try
{
streamReader = new StreamReader(new MemoryStream(bytes), Encoding.Default);
content = streamReader.ReadToEnd();
}
finally
{
if (streamReader != null)
{
streamReader.Close();
}
}
}
}
catch (Exception exception)
{
Debug.Fail("HtmlControl.SaveHtml" + exception.ToString());
content = String.Empty;
}
finally
{
}
if (content == null)
{
content = String.Empty;
}
return content;
/*
HtmlFormatter formatter = new HtmlFormatter();
StringWriter writer = new StringWriter();
formatter.Format(content, writer);
return writer.ToString();
*/
}
private Object GetDataFromOleIStream(string format, DVASPECT aspect, int index)
{
FORMATETC formatetc;
STGMEDIUM medium;
formatetc = new FORMATETC();
formatetc.cfFormat = (short)DataFormats.GetDataFormat(format).Id;
formatetc.dwAspect = aspect;
formatetc.lindex = index;
formatetc.tymed = TYMED.TYMED_ISTREAM;
object outData = null;
if (NativeMethods.S_OK == QueryGetDataInner(ref formatetc))
{
GetDataInner(ref formatetc, out medium);
try
{
// Check both handle and type of storage medium
if (medium.unionmember != IntPtr.Zero && medium.tymed == TYMED.TYMED_ISTREAM)
{
UnsafeNativeMethods.IStream pStream;
pStream = (UnsafeNativeMethods.IStream)Marshal.GetObjectForIUnknown(medium.unionmember);
NativeMethods.STATSTG sstg = new NativeMethods.STATSTG();
pStream.Stat(sstg, NativeMethods.STATFLAG_DEFAULT);
int size = (int)sstg.cbSize;
IntPtr hglobal = Win32GlobalAlloc(NativeMethods.GMEM_MOVEABLE
| NativeMethods.GMEM_DDESHARE
| NativeMethods.GMEM_ZEROINIT,
(IntPtr)(size));
try
{
IntPtr ptr = Win32GlobalLock(new HandleRef(this, hglobal));
try
{
// NTRAID:WINDOWS#1449332-2006/01/16-WAYNEZEN,
// Seek to the beginning of the stream before reading it.
pStream.Seek(0, 0 /* STREAM_SEEK_SET */);
pStream.Read(ptr, size);
}
finally
{
Win32GlobalUnlock(new HandleRef(this, hglobal));
}
outData = GetDataFromHGLOBAL(format, hglobal);
}
finally
{
Win32GlobalFree(new HandleRef(this, hglobal));
}
}
}
finally
{
UnsafeNativeMethods.ReleaseStgMedium(ref medium);
}
}
return outData;
}
