File size: 8,185 Bytes
b1b3bae |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 |
Imports System.Runtime.InteropServices
Imports System.IO
Namespace SendFileTo
Public Class MAPI
Public Function AddRecipientTo(ByVal email As String) As Boolean
Return AddRecipient(email, howTo.MAPI_TO)
End Function
Public Function AddRecipientCC(ByVal email As String) As Boolean
Return AddRecipient(email, howTo.MAPI_TO)
End Function
Public Function AddRecipientBCC(ByVal email As String) As Boolean
Return AddRecipient(email, howTo.MAPI_TO)
End Function
Public Sub AddAttachment(ByVal strAttachmentFileName As String)
m_attachments.Add(strAttachmentFileName)
End Sub
Public Function SendMailPopup(ByVal strSubject As String, ByVal strBody As String) As Integer
Return SendMail(strSubject, strBody, MAPI_LOGON_UI Or MAPI_DIALOG)
End Function
Public Function SendMailDirect(ByVal strSubject As String, ByVal strBody As String) As Integer
Return SendMail(strSubject, strBody, MAPI_LOGON_UI)
End Function
<DllImport("MAPI32.DLL")> _
Private Shared Function MAPISendMail(ByVal sess As IntPtr, ByVal hwnd As IntPtr, ByVal message As MapiMessage, ByVal flg As Integer, ByVal rsv As Integer) As Integer
End Function
Private Function SendMail(ByVal strSubject As String, ByVal strBody As String, ByVal how As Integer) As Integer
Dim msg As MapiMessage = New MapiMessage()
msg.subject = strSubject
msg.noteText = strBody
msg.recips = GetRecipients(msg.recipCount)
msg.files = GetAttachments(msg.fileCount)
m_lastError = MAPISendMail(New IntPtr(0), New IntPtr(0), msg, how, 0)
If m_lastError > 1 Then
MessageBox.Show("MAPISendMail failed! " + GetLastError(), "MAPISendMail")
End If
Cleanup(msg)
Return m_lastError
End Function
Private Function AddRecipient(ByVal email As String, ByVal howTo As howTo) As Boolean
Dim recipient As MapiRecipDesc = New MapiRecipDesc()
recipient.recipClass = CType(howTo, Integer)
recipient.name = email
m_recipients.Add(recipient)
Return True
End Function
Private Function GetRecipients(ByRef recipCount As Integer) As IntPtr
recipCount = 0
If m_recipients.Count = 0 Then
Return 0
End If
Dim size As Integer = Marshal.SizeOf(GetType(MapiRecipDesc))
Dim intPtr As IntPtr = Marshal.AllocHGlobal(m_recipients.Count * size)
Dim ptr As Integer = CType(intPtr, Integer)
Dim mapiDesc As MapiRecipDesc
For Each mapiDesc In m_recipients
Marshal.StructureToPtr(mapiDesc, CType(ptr, IntPtr), False)
ptr += size
Next
recipCount = m_recipients.Count
Return intPtr
End Function
Private Function GetAttachments(ByRef fileCount As Integer) As IntPtr
fileCount = 0
If m_attachments Is Nothing Then
Return 0
End If
If (m_attachments.Count <= 0) Or (m_attachments.Count > maxAttachments) Then
Return 0
End If
Dim size As Integer = Marshal.SizeOf(GetType(MapiFileDesc))
Dim intPtr As IntPtr = Marshal.AllocHGlobal(m_attachments.Count * size)
Dim mapiFileDesc As MapiFileDesc = New MapiFileDesc()
mapiFileDesc.position = -1
Dim ptr As Integer = CType(intPtr, Integer)
Dim strAttachment As String
For Each strAttachment In m_attachments
mapiFileDesc.name = Path.GetFileName(strAttachment)
mapiFileDesc.path = strAttachment
Marshal.StructureToPtr(mapiFileDesc, CType(ptr, IntPtr), False)
ptr += size
Next
fileCount = m_attachments.Count
Return intPtr
End Function
Private Sub Cleanup(ByRef msg As MapiMessage)
Dim size As Integer = Marshal.SizeOf(GetType(MapiRecipDesc))
Dim ptr As Integer = 0
If msg.recips <> IntPtr.Zero Then
ptr = CType(msg.recips, Integer)
Dim i As Integer
For i = 0 To msg.recipCount - 1 Step i + 1
Marshal.DestroyStructure(CType(ptr, IntPtr), GetType(MapiRecipDesc))
ptr += size
Next
Marshal.FreeHGlobal(msg.recips)
End If
If msg.files <> IntPtr.Zero Then
size = Marshal.SizeOf(GetType(MapiFileDesc))
ptr = CType(msg.files, Integer)
Dim i As Integer
For i = 0 To msg.fileCount - 1 Step i + 1
Marshal.DestroyStructure(CType(ptr, IntPtr), GetType(MapiFileDesc))
ptr += size
Next
Marshal.FreeHGlobal(msg.files)
End If
m_recipients.Clear()
m_attachments.Clear()
m_lastError = 0
End Sub
Public Function GetLastError() As String
If m_lastError <= 26 Then
Return errors(m_lastError)
End If
Return "MAPI error [" + m_lastError.ToString() + "]"
End Function
ReadOnly errors() As String = New String() {"OK [0]", "User abort [1]", _
"General MAPI failure [2]", "MAPI login failure [3]", _
"Disk full [4]", "Insufficient memory [5]", "Access denied [6]", _
"-unknown- [7]", "Too many sessions [8]", _
"Too many files were specified [9]", _
"Too many recipients were specified [10]", _
"A specified attachment was not found [11]", _
"Attachment open failure [12]", "Attachment write failure [13]", _
"Unknown recipient [14]", "Bad recipient type [15]", _
"No messages [16]", "Invalid message [17]", "Text too large [18]", _
"Invalid session [19]", "Type not supported [20]", _
"A recipient was specified ambiguously [21]", _
"Message in use [22]", "Network failure [23]", _
"Invalid edit fields [24]", "Invalid recipients [25]", _
"Not supported [26]"}
Dim m_recipients As New List(Of MapiRecipDesc)
Dim m_attachments As New List(Of String)
Dim m_lastError As Integer = 0
Private Const MAPI_LOGON_UI As Integer = &H1
Private Const MAPI_DIALOG As Integer = &H8
Private Const maxAttachments As Integer = 20
Enum howTo
MAPI_ORIG = 0
MAPI_TO
MAPI_CC
MAPI_BCC
End Enum
End Class
<StructLayout(LayoutKind.Sequential)> _
Public Class MapiMessage
Public reserved As Integer
Public subject As String
Public noteText As String
Public messageType As String
Public dateReceived As String
Public conversationID As String
Public flags As Integer
Public originator As IntPtr
Public recipCount As Integer
Public recips As IntPtr
Public fileCount As Integer
Public files As IntPtr
End Class
<StructLayout(LayoutKind.Sequential)> _
Public Class MapiFileDesc
Public reserved As Integer
Public flags As Integer
Public position As Integer
Public path As String
Public name As String
Public type As IntPtr
End Class
<StructLayout(LayoutKind.Sequential)> _
Public Class MapiRecipDesc
Public reserved As Integer
Public recipClass As Integer
Public name As String
Public address As String
Public eIDSize As Integer
Public enTryID As IntPtr
End Class
End Namespace |