static bool IsAttachmentInline(MapiAttachment attachment)
{
foreach (MapiProperty property in attachment.ObjectData.Properties.Values)
{
if (property.Name == "\x0003ObjInfo")
{
ushort odtPersist1 = BitConverter.ToUInt16(property.Data, 0);
return((odtPersist1 & (1 << (7 - 1))) == 0);
}
}
return(false);
}
static void SaveAttachment(MapiAttachment attachment, string fileName)
{
foreach (MapiProperty property in attachment.ObjectData.Properties.Values)
{
if (property.Name == "Package")
{
using (FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write))
{
fs.Write(property.Data, 0, property.Data.Length);
}
}
}
}
public static void Run()
{
string dataDir = RunExamples.GetDataDir_Outlook();
MapiMessage message = MapiMessage.FromFile(dataDir + "messageWithEmbeddedEML.msg");
MapiAttachment attachment = message.Attachments[0];
// ExStart:GetNestedMailMessageAttachments
// Create a MapiMessage object from the individual attachment
MapiMessage getAttachment = MapiMessage.FromProperties(attachment.ObjectData.Properties);
// Create object of type MailMessageImterpretor from the above message and Save the embedded message to file at disk
MailMessage mailMessage = getAttachment.ToMailMessage(new MailConversionOptions());
mailMessage.Save(dataDir + @"NestedMailMessageAttachments_out.eml", SaveOptions.DefaultEml);
// ExEnd:GetNestedMailMessageAttachments
}
public static bool IsInlineAttachment(MapiAttachment att, MapiMessage msg)
{
switch (msg.BodyType)
{
case BodyContentType.PlainText:
// ignore indications for plain text messages
return false;
case BodyContentType.Html:
// check the PidTagAttachFlags property
if (att.Properties.Contains(0x37140003))
{
long? attachFlagsValue = att.GetPropertyLong(0x37140003);
if (attachFlagsValue != null && (attachFlagsValue & 0x00000004) == 0x00000004)
{
// check PidTagAttachContentId property
if (att.Properties.Contains(MapiPropertyTag.PR_ATTACH_CONTENT_ID) ||
att.Properties.Contains(MapiPropertyTag.PR_ATTACH_CONTENT_ID_W))
{
string contentId = att.Properties.Contains(MapiPropertyTag.PR_ATTACH_CONTENT_ID)
? att.Properties[MapiPropertyTag.PR_ATTACH_CONTENT_ID].GetString()
: att.Properties[MapiPropertyTag.PR_ATTACH_CONTENT_ID_W].GetString();
if (msg.BodyHtml.Contains(contentId))
{
return true;
}
}
// check PidTagAttachContentLocation property
if (att.Properties.Contains(0x3713001E) ||
att.Properties.Contains(0x3713001F))
{
return true;
}
}
else if ((att.Properties.Contains(0x3716001F) && att.GetPropertyString(0x3716001F) == "inline")
|| (att.Properties.Contains(0x3716001E) && att.GetPropertyString(0x3716001E) == "inline"))
{
return true;
}
}
else if ((att.Properties.Contains(0x3716001F) && att.GetPropertyString(0x3716001F) == "inline")
|| (att.Properties.Contains(0x3716001E) && att.GetPropertyString(0x3716001E) == "inline"))
{
return true;
}
return false;
case BodyContentType.Rtf:
// If the body is RTF, then all OLE attachments are inline attachments.
// OLE attachments have 0x00000006 for the value of the PidTagAttachMethod property
if (att.Properties.Contains(MapiPropertyTag.PR_ATTACH_METHOD))
{
return att.GetPropertyLong(MapiPropertyTag.PR_ATTACH_METHOD) == 0x00000006;
}
return false;
default:
throw new ArgumentOutOfRangeException();
}
}
public static bool IsInlineAttachment(MapiAttachment att, MapiMessage msg)
{
switch (msg.BodyType)
{
case BodyContentType.PlainText:
// ignore indications for plain text messages
return(false);
case BodyContentType.Html:
// check the PidTagAttachFlags property
if (att.Properties.ContainsKey(0x37140003))
{
long?attachFlagsValue = att.GetPropertyLong(0x37140003);
if (attachFlagsValue != null && (attachFlagsValue & 0x00000004) == 0x00000004)
{
// check PidTagAttachContentId property
if (att.Properties.ContainsKey(MapiPropertyTag.PR_ATTACH_CONTENT_ID) ||
att.Properties.ContainsKey(MapiPropertyTag.PR_ATTACH_CONTENT_ID_W))
{
string contentId = att.Properties.ContainsKey(MapiPropertyTag.PR_ATTACH_CONTENT_ID)
? att.Properties[MapiPropertyTag.PR_ATTACH_CONTENT_ID].GetString()
: att.Properties[MapiPropertyTag.PR_ATTACH_CONTENT_ID_W].GetString();
if (msg.BodyHtml.Contains(contentId))
{
return(true);
}
}
// check PidTagAttachContentLocation property
if (att.Properties.ContainsKey(0x3713001E) ||
att.Properties.ContainsKey(0x3713001F))
{
return(true);
}
}
else if ((att.Properties.ContainsKey(0x3716001F) && att.GetPropertyString(0x3716001F) == "inline") ||
(att.Properties.ContainsKey(0x3716001E) && att.GetPropertyString(0x3716001E) == "inline"))
{
return(true);
}
}
else if ((att.Properties.ContainsKey(0x3716001F) && att.GetPropertyString(0x3716001F) == "inline") ||
(att.Properties.ContainsKey(0x3716001E) && att.GetPropertyString(0x3716001E) == "inline"))
{
return(true);
}
return(false);
case BodyContentType.Rtf:
// If the body is RTF, then all OLE attachments are inline attachments.
// OLE attachments have 0x00000006 for the value of the PidTagAttachMethod property
if (att.Properties.ContainsKey(MapiPropertyTag.PR_ATTACH_METHOD))
{
return(att.GetPropertyLong(MapiPropertyTag.PR_ATTACH_METHOD) == 0x00000006);
}
return(false);
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// Set content id to attachment
/// </summary>
/// <param name="attach"></param>
/// <param name="id"></param>
public static void SetContentId(this MapiAttachment attach, object id)
{
attach.SetProperty(KnownPropertyList.AttachContentId, id);
}
/// <summary>
/// Get Content Id from attachment
/// </summary>
/// <param name="attach"></param>
public static string GetContentId(this MapiAttachment attach)
{
return(attach.GetPropertyString(KnownPropertyList.AttachContentId.Tag));
}