public int CreateInstance(IntPtr unkOuter, ref Guid iid, out IntPtr obj)
{
obj = IntPtr.Zero;
if (unkOuter != IntPtr.Zero)
{
Marshal.ThrowExceptionForHR(NativeMethods.CLASS_E_NOAGGREGATION);
}
else if (iid == NativeMethods.iidIUnknown || iid == typeof(IPropertyPage).GUID)
{
// Create the PropertyPagePane from the clsid
IntPtr paneUnknown;
int hr = NativeMethods.CoCreateInstance(ref clsid, unkOuter, NativeMethods.CLSCTX_INPROC_SERVER, ref iid, out paneUnknown);
if (hr != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
else
{
// Marshal it into a C# object
IPropertyPane pane = Marshal.GetTypedObjectForIUnknown(paneUnknown, typeof(IPropertyPane)) as IPropertyPane;
if (pane == null)
{
Marshal.ThrowExceptionForHR(NativeMethods.E_NOINTERFACE);
}
else
{
// Create a property page from the property page pane.
IPropertyPage page = new PropertyPage(pane);
// And marshall the property page back to an IPropertyPage COM interface
obj = Marshal.GetComInterfaceForObject(page, typeof(IPropertyPage));
}
}
}
else
{
Marshal.ThrowExceptionForHR(NativeMethods.E_NOINTERFACE);
}
return(0);
}
public int CreateInstance(IntPtr unkOuter, ref Guid iid, out IntPtr obj)
{
obj = IntPtr.Zero;
if (unkOuter != IntPtr.Zero)
{
Marshal.ThrowExceptionForHR(NativeMethods.CLASS_E_NOAGGREGATION);
}
else if (iid == NativeMethods.iidIUnknown || iid == typeof(IPropertyPage).GUID)
{
// Create the PropertyPagePane from the clsid
IntPtr paneUnknown;
int hr = NativeMethods.CoCreateInstance(ref clsid, unkOuter, NativeMethods.CLSCTX_INPROC_SERVER, ref iid, out paneUnknown);
if (hr != 0)
Marshal.ThrowExceptionForHR(hr);
else
{
// Marshal it into a C# object
IPropertyPane pane = Marshal.GetTypedObjectForIUnknown(paneUnknown, typeof(IPropertyPane)) as IPropertyPane;
if (pane == null)
{
Marshal.ThrowExceptionForHR(NativeMethods.E_NOINTERFACE);
}
else
{
// Create a property page from the property page pane.
IPropertyPage page = new PropertyPage(pane);
// And marshall the property page back to an IPropertyPage COM interface
obj = Marshal.GetComInterfaceForObject(page, typeof(IPropertyPage));
}
}
}
else
{
Marshal.ThrowExceptionForHR(NativeMethods.E_NOINTERFACE);
}
return 0;
}