/// <summary>
/// Default constructor for creating InteropRecipientCollection.
/// </summary>
/// <param name="outer"></param>
public InteropRecipientCollection(RecipientCollection outer)
{
_count = outer.Count;
if (_count == 0)
{
Handle = IntPtr.Zero;
return;
}
// allocate enough memory to hold all recipients
int size = Marshal.SizeOf(typeof(MapiMailMessage.MapiHelperInterop.MapiRecipDesc));
Handle = Marshal.AllocHGlobal(_count * size);
// place all interop recipients into the memory just allocated
IntPtr ptr = Handle;
foreach (Recipient native in outer)
{
MapiMailMessage.MapiHelperInterop.MapiRecipDesc interop = native.GetInteropRepresentation();
// stick it in the memory block
Marshal.StructureToPtr(interop, ptr, false);
ptr = new IntPtr(ptr.ToInt64() + size);
}
}
/// <summary>
/// Sends the mail message.
/// </summary>
private void _ShowMail()
{
var message = new MapiHelperInterop.MapiMessage();
using (var interopRecipients = Recipients.GetInteropRepresentation())
{
message.Subject = Subject;
message.NoteText = Body;
message.Recipients = interopRecipients.Handle;
message.RecipientCount = Recipients.Count;
// Check if we need to add attachments
if (Files.Count > 0)
{
// Add attachments
message.Files = _AllocAttachments(out message.FileCount);
}
// Signal the creating thread (make the remaining code async)
_manualResetEvent.Set();
const int MAPI_DIALOG = 0x8;
//const int MAPI_LOGON_UI = 0x1;
var error = MapiHelperInterop.MAPISendMail(IntPtr.Zero, IntPtr.Zero, message, MAPI_DIALOG, 0);
if (Files.Count > 0)
{
// Deallocate the files
_DeallocFiles(message);
}
var errorCode = (MapiCodes)Enum.ToObject(typeof(MapiCodes), error);
// Check for error
if (errorCode == MapiCodes.SUCCESS || errorCode == MapiCodes.USER_ABORT)
{
return;
}
var errorText = GetMapiError(errorCode);
Log.Error().WriteLine(null, "Error sending MAPI Email. Error: " + errorText + " (code = " + errorCode + ").");
MessageBox.Show(errorText, "Mail (MAPI) destination", MessageBoxButtons.OK, MessageBoxIcon.Error);
// Recover from bad settings, show again
if (errorCode != MapiCodes.INVALID_RECIPS)
{
return;
}
Recipients = new RecipientCollection();
_ShowMail();
}
}
/// <summary>
/// Creates a blank mail message.
/// </summary>
public MapiMailMessage()
{
Files = new List <string>();
Recipients = new RecipientCollection();
_manualResetEvent = new ManualResetEvent(false);
}
/// <summary>
/// Creates a blank mail message.
/// </summary>
public MapiMailMessage()
{
_files = new List<string>();
_recipientCollection = new RecipientCollection();
_manualResetEvent = new ManualResetEvent(false);
}
/// <summary>
/// Default constructor for creating InteropRecipientCollection.
/// </summary>
/// <param name="outer"></param>
public InteropRecipientCollection(RecipientCollection outer)
{
_count = outer.Count;
if (_count == 0)
{
_handle = IntPtr.Zero;
return;
}
// allocate enough memory to hold all recipients
int size = Marshal.SizeOf(typeof(MapiMailMessage.MAPIHelperInterop.MapiRecipDesc));
_handle = Marshal.AllocHGlobal(_count * size);
// place all interop recipients into the memory just allocated
int ptr = (int)_handle;
foreach (Recipient native in outer)
{
MapiMailMessage.MAPIHelperInterop.MapiRecipDesc interop = native.GetInteropRepresentation();
// stick it in the memory block
Marshal.StructureToPtr(interop, (IntPtr)ptr, false);
ptr += size;
}
}
/// <summary>
/// Sends the mail message.
/// </summary>
private void _ShowMail() {
MAPIHelperInterop.MapiMessage message = new MAPIHelperInterop.MapiMessage();
using (RecipientCollection.InteropRecipientCollection interopRecipients = _recipientCollection.GetInteropRepresentation()) {
message.Subject = _subject;
message.NoteText = _body;
message.Recipients = interopRecipients.Handle;
message.RecipientCount = _recipientCollection.Count;
// Check if we need to add attachments
if (_files.Count > 0) {
// Add attachments
message.Files = _AllocAttachments(out message.FileCount);
}
// Signal the creating thread (make the remaining code async)
_manualResetEvent.Set();
const int MAPI_DIALOG = 0x8;
//const int MAPI_LOGON_UI = 0x1;
int error = MAPIHelperInterop.MAPISendMail(IntPtr.Zero, IntPtr.Zero, message, MAPI_DIALOG, 0);
if (_files.Count > 0) {
// Deallocate the files
_DeallocFiles(message);
}
MAPI_CODES errorCode = (MAPI_CODES)Enum.ToObject(typeof(MAPI_CODES), error);
// Check for error
if (errorCode != MAPI_CODES.SUCCESS && errorCode != MAPI_CODES.USER_ABORT) {
string errorText = GetMapiError(errorCode);
LOG.Error("Error sending MAPI Email. Error: " + errorText + " (code = " + errorCode + ").");
MessageBox.Show(errorText, "Mail (MAPI) destination", MessageBoxButtons.OK, MessageBoxIcon.Error);
// Recover from bad settings, show again
if (errorCode == MAPI_CODES.INVALID_RECIPS) {
_recipientCollection = new RecipientCollection();
_ShowMail();
}
}
}
}
