private void Cleanup(ref MapiMessage msg)
{
int size = Marshal.SizeOf(typeof(MapiRecipDesc));
int ptr = 0;
if (msg.Recips != IntPtr.Zero)
{
ptr = (int)msg.Recips;
for (int i = 0; i < msg.RecipCount; i++)
{
Marshal.DestroyStructure((IntPtr)ptr, typeof(MapiRecipDesc));
ptr += size;
}
Marshal.FreeHGlobal(msg.Recips);
}
if (msg.Files != IntPtr.Zero)
{
size = Marshal.SizeOf(typeof(MapiFileDesc));
ptr = (int)msg.Files;
for (int i = 0; i < msg.FileCount; i++)
{
Marshal.DestroyStructure((IntPtr)ptr, typeof(MapiFileDesc));
ptr += size;
}
Marshal.FreeHGlobal(msg.Files);
}
_recipients.Clear();
_attachments.Clear();
}
private int SendMail(String strSubject, String strBody, int how)
{
MapiMessage msg = new MapiMessage();
msg.Subject = strSubject;
msg.NoteText = strBody;
msg.Recips = GetRecipients(out msg.RecipCount);
msg.Files = GetAttachments(out msg.FileCount);
_lastError = NativeMethods.MapiSendMail(new IntPtr(0), new IntPtr(0), msg, how, 0);
Cleanup(ref msg);
return _lastError;
}
internal static extern int MapiSendMail(IntPtr sess, IntPtr hwnd, MapiMessage message, int flg, int rsv);