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DataFlex

Create a Multipart-Mixed MIME Message

See more MIME Examples

Creates a multipart-mixed MIME message with the 1st part containing plain-text, and the 2nd part containing a GIF image.

Chilkat DataFlex Downloads

DataFlex
Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoMime
    Variant vTextPart
    Handle hoTextPart
    Variant vImagePart
    Handle hoImagePart
    String sTemp1

    Move False To iSuccess

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatMime)) To hoMime
    If (Not(IsComObjectCreated(hoMime))) Begin
        Send CreateComObject of hoMime
    End

    // Initialize a multipart-mixed MIME message:
    Get ComNewMultipartMixed Of hoMime To iSuccess

    // Each sub-part will be prepared, then added to the 
    // top-level multipart/mixed MIME object, and then written
    // to a file.

    // First the plain-text sub-part
    // Add a few header fields:
    Get Create (RefClass(cComChilkatMime)) To hoTextPart
    If (Not(IsComObjectCreated(hoTextPart))) Begin
        Send CreateComObject of hoTextPart
    End
    Get ComAddHeaderField Of hoTextPart "Description" "this is a test" To iSuccess
    Get ComAddHeaderField Of hoTextPart "MyId" "123" To iSuccess
    Get ComSetBodyFromPlainText Of hoTextPart "This is the plain-text body" To iSuccess

    // Now for a GIF image:
    Get Create (RefClass(cComChilkatMime)) To hoImagePart
    If (Not(IsComObjectCreated(hoImagePart))) Begin
        Send CreateComObject of hoImagePart
    End
    Get ComSetBodyFromFile Of hoImagePart "starfish.gif" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImagePart To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Append each sub-part to the top-level MIME object:
    Get pvComObject of hoTextPart to vTextPart
    Get ComAppendPart Of hoMime vTextPart To iSuccess
    Get pvComObject of hoImagePart to vImagePart
    Get ComAppendPart Of hoMime vImagePart To iSuccess

    // Write the full multipart-mixed MIME to a file.
    Get ComSaveMime Of hoMime "out.mim" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoMime To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComGetMime Of hoMime To sTemp1
    Showln sTemp1

    // The MIME should look something like this:
    // (See more comments following this sample output...)

    // Content-Type: multipart/mixed;
    //  boundary="------------080503030004040303020208"
    // 
    // This is a multi-part message in MIME format.
    // 
    // --------------080503030004040303020208
    // Description: this is a test
    // MyId: 123
    // Content-Type: text/plain
    // Content-Transfer-Encoding: 7bit
    // 
    // This is the plain-text body
    // --------------080503030004040303020208
    // Content-Disposition: attachment; filename="starfish.gif"
    // Content-Transfer-Encoding: base64
    // Content-Type: image/gif; name="starfish.gif"
    // 
    // R0lGODlhIAAgAPcAAP///+/v7/f39+/n5/fv7//39/fn597OzufW1tbGxs69vffe3u/W1salpZQQ
    // EIQYEJwQCJQYCJwYCM6clL2Ee5wpGIwhEK0YANatpdalnHMYCKUhCJQYAKUYAM6Ec5QhCJwhCPfW
    // zu/Oxta1rb17a6UhAK0hAPe9rb2Ec7V7a71rUpwpCL0xCJwhAOfOxta9tcatpdallM6cjMaUhK1C
    // IZwxELU5EK0xCLUxCN61pcacjK1rUrVaOaVKKZxCIZwxCKUxCL05CLUxAM6llO+1nMZzUr1rSrVS
    // KaVCGK1CGLVCEJQxCK05CLU5CIwpAKUxAK0xAM69tffWxrVrSrVaMbVKGMZKEL1CCLU5AP/v597O
    // xufGtcallNaljLWEa96ce9aUc717Wq1aMcZjMbVaKbVSIa1KGL1SGJw5CK1CCLVCCMZKCM5KCMZC
    // APfn3tbGvc57Ss5aGMZSENZaEL1KCM5SCLVCAMZKAPfezvfOte/GrdatlN6cc9aEUr1rOc5jIdZj
    // GL1SEM5aELVKCMZSCNZaCL1KAOfOvc57Qs5jGNZjEM5aCMZSAN5aAO/OtefGrcZjGM5jEN5rELVS
    // CMZaCN5jCOdrCM5aAO/Gpc5rGMZjENZrEN5jAOdrAOfe1t6MQtZ7Kd57IdZzGM5rEMZjCNZrCM5j
    // ANbOxu/Wve+9jPe9hO+1e+etc85zGO+EGMZrENZzEM5rCN5zCO97COdzAO/n3u+1c+ecSt6UQs57
    // Ie+MIdZ7GOeEGM5zEO+EELVjCOd7CO+ECOd7AO/Ope+tWuelUu+UKeeMGOeEEO+MEOeECO+EAO/G
    // jO+cKfeUEO+MCO+tSuecMeeUGN6MEOeMCO+UCO+tQuelOe+lMe+lKe+cGOeUEO+cEOeUCN6MAO+U
    // AOe9c/e1Oe+lId6UEO+cCPe9Qve1Me+lEOecCO+lCOe1Su+1OeelGO+tGPetCPetAO+9Qve1GO+1
    // EPe9CPe9APf37+fv5/f//+/v9/fv9+fe5+/e5869xufW3t7GzgAAACwAAAAAIAAgAAAI/wABCBxI
    // sKDBgwgTFgCwMKHDhwyHYWoIsWIBZsdyHaoIcaGbaNQ0ZeBYEROvV0pmCCDp8B4rZaOUcGHpcIEx
    // aqPMYLjHMcsCAwgxkRv3q8wLnhAdfWpmDRwqAgQFEEvHLlCZNxwfpVmkDJ04dczc3LsXQtq4XWh8
    // aGH48F49FDUC9UInT941W6luCUOWyQmSLST3eUnChNS4c9SooQuGDNkrIIrA1MqXr0A+AyFC4Kln
    // kMAQKljotJJGDZklS9PkyEHGLZu1ctbCmWvXThurfAbvHSii5kegxpYqtRpEKFnid/TSneu2LRYh
    // P/0Q1tJRgYOZV71UL5LEK1KiV68yVf+xgaOKmAZICd5bmA8FEyZQlMjRRAhQGQv4QQSJL8ZLFHwP
    // 6aFIJXNIEkggcgQhwYIlKEFFGDKcEgBCBVCkByC0IAMJGnSAYsUNEmzAgw4HBJBeQisZcAswjqGh
    // wQeBKGIFFD0ocCJE9diyjTKRLPHBAx/cEAcdgxgx4Vg3HnSPKs4E00sNEYDwgQksQDLJIohMSJIj
    // ugSTCRA/ILFDCjTckUkrpYiCAEluYCMLJCsoMQUM9gjQRSSL7CLJJjmQxMw3kQChxA78IFULHIK0
    // MgonXyR5UAHWVBKIEmEcUJAIYxgSSSF94AZRPrgsQgUF0RmUgWpy/LFmRYdMkACAANwrWA8cbAhi
    // RZ8cjRWro0QEEsQVGTiKkLAM5QNGFWrAQFNLBIzABQPLRktQQAA7
    // 
    // --------------080503030004040303020208--
    // 
    // 

    // To explicitly set the boundary, set the Boundary property, like this:
    Set ComBoundary Of hoMime To "SOME_UNIQUE_BOUNDARY_STRING"

    // To eliminate the "This is a multi-part message in MIME format."
    // from the output, set the UseMmDescription property = False
    Set ComUseMmDescription Of hoMime To False

    Get ComGetMime Of hoMime To sTemp1
    Showln sTemp1

    // The MIME now looks like this:

    // Content-Type: multipart/mixed;
    //  boundary="SOME_UNIQUE_BOUNDARY_STRING"
    // 
    // --SOME_UNIQUE_BOUNDARY_STRING
    // Description: this is a test
    // MyId: 123
    // Content-Type: text/plain
    // Content-Transfer-Encoding: 7bit
    // 
    // This is the plain-text body
    // --SOME_UNIQUE_BOUNDARY_STRING
    // Content-Disposition: attachment; filename="starfish.gif"
    // Content-Transfer-Encoding: base64
    // Content-Type: image/gif; name="starfish.gif"
    // 
    // R0lGODlhIAAgAPcAAP///+/v7/f39+/n5/fv7//39/fn597OzufW1tbGxs69vffe3u/W1salpZQQ
    // EIQYEJwQCJQYCJwYCM6clL2Ee5wpGIwhEK0YANatpdalnHMYCKUhCJQYAKUYAM6Ec5QhCJwhCPfW
    // zu/Oxta1rb17a6UhAK0hAPe9rb2Ec7V7a71rUpwpCL0xCJwhAOfOxta9tcatpdallM6cjMaUhK1C
    // IZwxELU5EK0xCLUxCN61pcacjK1rUrVaOaVKKZxCIZwxCKUxCL05CLUxAM6llO+1nMZzUr1rSrVS
    // KaVCGK1CGLVCEJQxCK05CLU5CIwpAKUxAK0xAM69tffWxrVrSrVaMbVKGMZKEL1CCLU5AP/v597O
    // xufGtcallNaljLWEa96ce9aUc717Wq1aMcZjMbVaKbVSIa1KGL1SGJw5CK1CCLVCCMZKCM5KCMZC
    // APfn3tbGvc57Ss5aGMZSENZaEL1KCM5SCLVCAMZKAPfezvfOte/GrdatlN6cc9aEUr1rOc5jIdZj
    // GL1SEM5aELVKCMZSCNZaCL1KAOfOvc57Qs5jGNZjEM5aCMZSAN5aAO/OtefGrcZjGM5jEN5rELVS
    // CMZaCN5jCOdrCM5aAO/Gpc5rGMZjENZrEN5jAOdrAOfe1t6MQtZ7Kd57IdZzGM5rEMZjCNZrCM5j
    // ANbOxu/Wve+9jPe9hO+1e+etc85zGO+EGMZrENZzEM5rCN5zCO97COdzAO/n3u+1c+ecSt6UQs57
    // Ie+MIdZ7GOeEGM5zEO+EELVjCOd7CO+ECOd7AO/Ope+tWuelUu+UKeeMGOeEEO+MEOeECO+EAO/G
    // jO+cKfeUEO+MCO+tSuecMeeUGN6MEOeMCO+UCO+tQuelOe+lMe+lKe+cGOeUEO+cEOeUCN6MAO+U
    // AOe9c/e1Oe+lId6UEO+cCPe9Qve1Me+lEOecCO+lCOe1Su+1OeelGO+tGPetCPetAO+9Qve1GO+1
    // EPe9CPe9APf37+fv5/f//+/v9/fv9+fe5+/e5869xufW3t7GzgAAACwAAAAAIAAgAAAI/wABCBxI
    // sKDBgwgTFgCwMKHDhwyHYWoIsWIBZsdyHaoIcaGbaNQ0ZeBYEROvV0pmCCDp8B4rZaOUcGHpcIEx
    // aqPMYLjHMcsCAwgxkRv3q8wLnhAdfWpmDRwqAgQFEEvHLlCZNxwfpVmkDJ04dczc3LsXQtq4XWh8
    // aGH48F49FDUC9UInT941W6luCUOWyQmSLST3eUnChNS4c9SooQuGDNkrIIrA1MqXr0A+AyFC4Kln
    // kMAQKljotJJGDZklS9PkyEHGLZu1ctbCmWvXThurfAbvHSii5kegxpYqtRpEKFnid/TSneu2LRYh
    // P/0Q1tJRgYOZV71UL5LEK1KiV68yVf+xgaOKmAZICd5bmA8FEyZQlMjRRAhQGQv4QQSJL8ZLFHwP
    // 6aFIJXNIEkggcgQhwYIlKEFFGDKcEgBCBVCkByC0IAMJGnSAYsUNEmzAgw4HBJBeQisZcAswjqGh
    // wQeBKGIFFD0ocCJE9diyjTKRLPHBAx/cEAcdgxgx4Vg3HnSPKs4E00sNEYDwgQksQDLJIohMSJIj
    // ugSTCRA/ILFDCjTckUkrpYiCAEluYCMLJCsoMQUM9gjQRSSL7CLJJjmQxMw3kQChxA78IFULHIK0
    // MgonXyR5UAHWVBKIEmEcUJAIYxgSSSF94AZRPrgsQgUF0RmUgWpy/LFmRYdMkACAANwrWA8cbAhi
    // RZ8cjRWro0QEEsQVGTiKkLAM5QNGFWrAQFNLBIzABQPLRktQQAA7
    // 
    // --SOME_UNIQUE_BOUNDARY_STRING--


End_Procedure