Visual FoxPro
Create a Multipart-Mixed MIME Message

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

lnSuccess = 0

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

loMime = CreateObject('Chilkat.Mime')

* Initialize a multipart-mixed MIME message:
lnSuccess = loMime.NewMultipartMixed()

* 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:
loTextPart = CreateObject('Chilkat.Mime')
lnSuccess = loTextPart.AddHeaderField("Description","this is a test")
lnSuccess = loTextPart.AddHeaderField("MyId","123")
lnSuccess = loTextPart.SetBodyFromPlainText("This is the plain-text body")

* Now for a GIF image:
loImagePart = CreateObject('Chilkat.Mime')
lnSuccess = loImagePart.SetBodyFromFile("starfish.gif")
IF (lnSuccess = 0) THEN
    ? loImagePart.LastErrorText
    RELEASE loMime
    RELEASE loTextPart
    RELEASE loImagePart
    CANCEL
ENDIF

* Append each sub-part to the top-level MIME object:
lnSuccess = loMime.AppendPart(loTextPart)
lnSuccess = loMime.AppendPart(loImagePart)

* Write the full multipart-mixed MIME to a file.
lnSuccess = loMime.SaveMime("out.mim")
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    RELEASE loTextPart
    RELEASE loImagePart
    CANCEL
ENDIF

? loMime.GetMime()

* 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:
loMime.Boundary = "SOME_UNIQUE_BOUNDARY_STRING"

* To eliminate the "This is a multi-part message in MIME format."
* from the output, set the UseMmDescription property = 0
loMime.UseMmDescription = 0

? loMime.GetMime()

* 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--

RELEASE loMime
RELEASE loTextPart
RELEASE loImagePart