void foo(UCOMIStream iStream)
{
// Load the Encrypted file into a stream.
FileStream fsIn = new FileStream("C:\\test.pdf", FileMode.Open, FileAccess.Read);
// Create a MemoryStream to hold the decrypted data.
MemoryStream ms = new MemoryStream();
// Create a reader for the data.
BinaryReader r = new BinaryReader(ms);
// Get length of the file.
int fileLen = Convert.ToInt32(ms.Length);
// Create a buffer for the data.
byte[] fileBytes = new byte[fileLen];
// Read the data from Memory
for (int i = 0; i < fileLen; i++)
{
fileBytes[i] = r.ReadByte();
}
// declare the COM stream
//UCOMIStream iStream;
// Write the data from buffer into COM Stream
iStream.Write(fileBytes, fileLen, System.IntPtr.Zero);
// Set size of COM stream
iStream.SetSize(fileLen);
}
/// <summary>
/// Sets the length of the stream
/// </summary>
/// <param name="Value">new length of the stream</param>
public override void SetLength(long Value)
{
if (fileStream == null)
{
throw new ObjectDisposedException("fileStream", "storage stream no longer available");
}
fileStream.SetSize(Value);
}
public void LoadDocument(String documentVal)
{
if ((documentVal != string.Empty) | (!this.bLoadDocumentWhenReady))
{
//if doc is waiting to load, it is already in string variable
sDocument = documentVal;
this.bLoadDocumentWhenReady = false;
}
else
{
this.bLoadDocumentWhenReady = false;
this.iLoadAttempts += 1;
}
if (!IsCreated)
{
throw new HtmlEditorException("Document not created");
}
if ((this.m_htmldoc.readyState.ToLower() != "complete") & (this.m_htmldoc.readyState.ToLower() != "interactive"))
//try to load on interactive as well as complete
{
if (iLoadAttempts < 2)
{
this.bLoadDocumentWhenReady = true;
return;
}
else
{
throw new HtmlEditorException("Document not ready");
}
}
if ((sDocument == null) || (sDocument == String.Empty))
{
sDocument = "<html><body></body></html>";
}
UCOMIStream stream = null;
if (this.mIsWin98 | this.mAlwaysLoadAnsi)
{
ComSupport.CreateStreamOnHGlobal(Marshal.StringToHGlobalAnsi(sDocument), 1, out
stream);
}
else
{
ComSupport.CreateStreamOnHGlobal(Marshal.StringToHGlobalUni(sDocument), 1, out
stream);
}
if (stream == null)
{
throw new HtmlEditorException("Could not allocate document stream");
}
if (this.mIsWin98)
{
//This code fixes a problem in Win98 - Framework bug? - where the string
//is sometimes incorrectly terminated
//It assumes an ANSI string
ulong thesize = 0;
IntPtr ptr = IntPtr.Zero;
int iSizeOfIntPtr = Marshal.SizeOf(typeof(Int64));
ptr = Marshal.AllocHGlobal(iSizeOfIntPtr);
if (ptr == IntPtr.Zero)
{
throw new HtmlEditorException("Could not load document");
}
//seek to end of stream
stream.Seek(0, 2, ptr);
//read the size
thesize = (ulong)Marshal.ReadInt64(ptr);
//free the pointer
Marshal.FreeHGlobal(ptr);
//2nd param, 0 is beginning, 1 is current, 2 is end
if (thesize != (ulong)sDocument.Length + 1)
{
//fix the size by truncating the stream
Debug.Assert(true, "Size of stream is unexpected", "The size of the stream is not equal to the length of the string passed to it.");
stream.SetSize((sDocument.Length) + 1);
}
}
//set stream to start
stream.Seek(0, 0, IntPtr.Zero);
IPersistStreamInit persistentStreamInit = (IPersistStreamInit)
this.m_htmldoc;
if (persistentStreamInit != null)
{
int iRetVal = 0;
iRetVal = persistentStreamInit.InitNew();
if (iRetVal == HRESULT.S_OK)
{
//this is a fix for exception raised in UpdateUI
site.mFullyActive = false;
iRetVal = persistentStreamInit.Load(stream);
if (iRetVal != HRESULT.S_OK)
{
throw new HtmlEditorException("Could not load document");
}
}
else
{
throw new HtmlEditorException("Could not load document");
}
persistentStreamInit = null;
}
else
{
throw new HtmlEditorException("Could not load document");
}
stream = null;
this.iLoadAttempts = 0;
}
