public static void SaveObjectToStream(object obj, Stream stm)
{
IStreamImpl istm = new IStreamImpl(stm);
IPersistStream ps = obj as IPersistStream;
if (ps != null)
{
ps.Save(istm, false);
}
else
{
IPersistStreamInit psi = (IPersistStreamInit)obj;
psi.Save(istm, false);
}
}
public static void LoadObjectFromStream(object obj, Stream stm)
{
IStreamImpl istm = new IStreamImpl(stm);
IPersistStream ps = obj as IPersistStream;
if (ps != null)
{
ps.Load(istm);
}
else
{
IPersistStreamInit psi = (IPersistStreamInit)obj;
psi.InitNew();
psi.Load(istm);
}
}
private void btnCreateWrite_Click(object sender, EventArgs e)
{
SaveFileDialog dlg = new SaveFileDialog();
dlg.Filter = "All Files (*.*)|*.*";
this.DialogResult = dlg.ShowDialog();
if (this.DialogResult == DialogResult.OK)
{
try
{
Stream = new IStreamImpl(dlg.FileName, System.IO.FileMode.CreateNew, System.IO.FileAccess.ReadWrite, System.IO.FileShare.Read);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
Close();
}
private void btnCreateRead_Click(object sender, EventArgs e)
{
using (OpenFileDialog dlg = new OpenFileDialog())
{
dlg.Filter = "All Files (*.*)|*.*";
dlg.ShowReadOnly = false;
this.DialogResult = dlg.ShowDialog();
if (this.DialogResult == DialogResult.OK)
{
try
{
Stream = new IStreamImpl(dlg.FileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
Close();
}
private void btnCreateRead_Click(object sender, EventArgs e)
{
using (OpenFileDialog dlg = new OpenFileDialog())
{
dlg.Filter = "All Files (*.*)|*.*";
dlg.ShowReadOnly = false;
this.DialogResult = dlg.ShowDialog();
if (this.DialogResult == DialogResult.OK)
{
try
{
Stream = new IStreamImpl(dlg.FileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
Close();
}
private void menuObjectFromMarshalledStream_Click(object sender, EventArgs e)
{
using (OpenFileDialog dlg = new OpenFileDialog())
{
dlg.Filter = "All Files (*.*)|*.*";
if (dlg.ShowDialog(this) == DialogResult.OK)
{
try
{
byte[] data = File.ReadAllBytes(dlg.FileName);
IStreamImpl stm = new IStreamImpl(new MemoryStream(data));
Guid iid = COMInterfaceEntry.IID_IUnknown;
IntPtr pv;
int hr = COMUtilities.CoUnmarshalInterface(stm, ref iid, out pv);
if (hr == 0)
{
object comObj = Marshal.GetObjectForIUnknown(pv);
Marshal.Release(pv);
OpenObjectInformation(comObj, "Marshalled Object");
}
else
{
Marshal.ThrowExceptionForHR(hr);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
public static void SaveObjectToStream(object obj, Stream stm)
{
IStreamImpl istm = new IStreamImpl(stm);
IPersistStream ps = obj as IPersistStream;
if (ps != null)
{
ps.Save(istm, false);
}
else
{
IPersistStreamInit psi = (IPersistStreamInit)obj;
psi.Save(istm, false);
}
}
public static void LoadObjectFromStream(object obj, Stream stm)
{
IStreamImpl istm = new IStreamImpl(stm);
IPersistStream ps = obj as IPersistStream;
if (ps != null)
{
ps.Load(istm);
}
else
{
IPersistStreamInit psi = (IPersistStreamInit)obj;
psi.InitNew();
psi.Load(istm);
}
}
private void menuObjectFromMarshalledStream_Click(object sender, EventArgs e)
{
using (OpenFileDialog dlg = new OpenFileDialog())
{
dlg.Filter = "All Files (*.*)|*.*";
if (dlg.ShowDialog(this) == DialogResult.OK)
{
try
{
byte[] data = File.ReadAllBytes(dlg.FileName);
IStreamImpl stm = new IStreamImpl(new MemoryStream(data));
Guid iid = COMInterfaceEntry.IID_IUnknown;
IntPtr pv;
int hr = COMUtilities.CoUnmarshalInterface(stm, ref iid, out pv);
if (hr == 0)
{
object comObj = Marshal.GetObjectForIUnknown(pv);
Marshal.Release(pv);
OpenObjectInformation(comObj, "Marshalled Object");
}
else
{
Marshal.ThrowExceptionForHR(hr);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
