Unicode C++
Unicode C++
Outlook Send HTML Email with Embedded Images
See more Outlook Examples
This example sends an HTML email with embedded images. Other examples exist for:- Sending plain-text email.
- Sending email with attachments.
- Sending HTML email with embedded images and attachments.
This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
Chilkat Unicode C++ Downloads
#include <CkHttpW.h>
#include <CkStringBuilderW.h>
#include <CkBinDataW.h>
#include <CkJsonObjectW.h>
#include <CkHttpResponseW.h>
void ChilkatSample(void)
{
bool success = false;
// Important: This example requires Chilkat v9.5.0.68 or greater.
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
CkHttpW http;
// Use your previously obtained access token here:
// See the following examples for getting an access token:
// Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
// Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
// Refresh Access Token (Azure AD v2.0 Endpoint).
// Refresh Access Token (Azure AD Endpoint).
http.put_AuthToken(L"MICROSOFT_GRAPH_ACCESS_TOKEN");
// To send mail, we'll POST to the following endpoint:
//
// POST /users/{id | userPrincipalName}/sendMail
//
// (The special keyword "me" may be used in place of a principal name.)
//
// This example will send HTML email containing the following HTML body.
// After the
// <html>
// <head>
// <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
// <meta content="text/html; charset=utf-8">
// </head>
// <body bgcolor="#FFFFFF">
// <font face="Calibri">This is a test <b>HTML email with embedded images</b>.<br>
// <br>
// <img alt="" src="cid:starfish"><br>
// <img alt="" src="cid:hedgehogs"><br>
// </font>
// </body>
// </html>
// Build the HTML body...
bool bCrlf = true;
CkStringBuilderW sbHtmlBody;
sbHtmlBody.AppendLine(L"<html>",bCrlf);
sbHtmlBody.AppendLine(L"<head>",bCrlf);
sbHtmlBody.AppendLine(L"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">",bCrlf);
sbHtmlBody.AppendLine(L"<meta content=\"text/html; charset=utf-8\">",bCrlf);
sbHtmlBody.AppendLine(L"</head>",bCrlf);
sbHtmlBody.AppendLine(L"<body bgcolor=\"#FFFFFF\">",bCrlf);
sbHtmlBody.AppendLine(L"<font face=\"Calibri\">This is a test <b>HTML email with embedded images</b>.<br>",bCrlf);
sbHtmlBody.AppendLine(L"<br>",bCrlf);
sbHtmlBody.AppendLine(L"<img alt=\"\" src=\"cid:starfish\"><br>",bCrlf);
sbHtmlBody.AppendLine(L"<img alt=\"\" src=\"cid:hedgehogs\"><br>",bCrlf);
sbHtmlBody.AppendLine(L"</font>",bCrlf);
sbHtmlBody.AppendLine(L"</body>",bCrlf);
sbHtmlBody.AppendLine(L"</html>",bCrlf);
// Load the image files.
CkBinDataW jpgStarfish;
jpgStarfish.LoadFile(L"qa_data/jpg/starfish.jpg");
CkBinDataW jpgHedgeHogs;
jpgHedgeHogs.LoadFile(L"qa_data/jpg/hedgehogs.jpg");
// The body of the POST request contains JSON that specifies the email subject, body,
// recipients, etc. This example will build the following JSON HTML email:
//
// {
// "message": {
// "subject": "Sample HTML Email with Embedded Images",
// "body": {
// "contentType": "html",
// "content": "The HTML body goes here..."
// },
// "toRecipients": [
// {
// "emailAddress": {
// "name": "Chilkat Software",
// "address": "admin@chilkat.io"
// }
// },
// {
// "emailAddress": {
// "address": "chilkat.support@gmail.com"
// }
// }
// ],
// "ccRecipients": [
// {
// "emailAddress": {
// "name": "Chilkat Blog",
// "address": "admin@cknotes.com"
// }
// }
// ],
// "attachments": [
// {
// "@odata.type": "#microsoft.graph.fileAttachment",
// "name": "starfish.jpg",
// "contentType": "image/jpeg",
// "size": 6497,
// "isInline": true,
// "contentId": "starfish",
// "contentLocation": null,
// "contentBytes": "base64_data_here"
// },
// {
// "@odata.type": "#microsoft.graph.fileAttachment",
// "name": "hedgehogs.jpg",
// "contentType": "image/jpeg",
// "size": 48845,
// "isInline": true,
// "contentId": "hedgehogs",
// "contentLocation": null,
// "contentBytes": "base64_data_here"
// }
// ]
// },
// "saveToSentItems": true
// }
//
// Build the above JSON.
CkJsonObjectW json;
json.UpdateString(L"message.subject",L"Sample HTML Email with Embedded Images");
json.UpdateString(L"message.body.contentType",L"html");
json.UpdateString(L"message.body.content",sbHtmlBody.getAsString());
json.UpdateString(L"message.toRecipients[0].emailAddress.name",L"Chilkat Software");
json.UpdateString(L"message.toRecipients[0].emailAddress.address",L"admin@chilkat.io");
json.UpdateString(L"message.toRecipients[1].emailAddress.address",L"chilkat.support@gmail.com");
json.UpdateString(L"message.ccRecipients[0].emailAddress.name",L"Chilkat Blog");
json.UpdateString(L"message.ccRecipients[0].emailAddress.address",L"admin@cknotes.com");
json.UpdateString(L"message.attachments[0].\"@odata.type\"",L"#microsoft.graph.fileAttachment");
json.UpdateString(L"message.attachments[0].name",L"starfish.jpg");
json.UpdateString(L"message.attachments[0].contentType",L"image/jpeg");
json.UpdateInt(L"message.attachments[0].size",jpgStarfish.get_NumBytes());
json.UpdateBool(L"message.attachments[0].isInline",true);
// This contentId must match the "cid:" in the HTML
json.UpdateString(L"message.attachments[0].contentId",L"starfish");
json.UpdateNull(L"message.attachments[0].contentLocation");
json.UpdateBd(L"message.attachments[0].contentBytes",L"base64",jpgStarfish);
json.UpdateString(L"message.attachments[1].\"@odata.type\"",L"#microsoft.graph.fileAttachment");
json.UpdateString(L"message.attachments[1].name",L"hedgehogs.jpg");
json.UpdateString(L"message.attachments[1].contentType",L"image/jpeg");
json.UpdateInt(L"message.attachments[1].size",jpgHedgeHogs.get_NumBytes());
json.UpdateBool(L"message.attachments[1].isInline",true);
// This contentId must match the "cid:" in the HTML
json.UpdateString(L"message.attachments[1].contentId",L"hedgehogs");
json.UpdateNull(L"message.attachments[1].contentLocation");
json.UpdateBd(L"message.attachments[1].contentBytes",L"base64",jpgHedgeHogs);
json.UpdateBool(L"saveToSentItems",true);
// -------------------------------------------------------------
// Important: This example requires Chilkat v9.5.0.68 or greater.
// -------------------------------------------------------------
// Send the HTTP POST (i.e. send the HTML email)
CkHttpResponseW resp;
success = http.HttpJson(L"POST",L"https://graph.microsoft.com/v1.0/me/sendMail",json,L"application/json",resp);
if (success == false) {
wprintf(L"%s\n",http.lastErrorText());
return;
}
// The send succeeded if the response status code = 202.
// In the success case, there is no response body. (We just get the response code to know that it succeeded.)
if (resp.get_StatusCode() != 202) {
json.Load(resp.bodyStr());
json.put_EmitCompact(false);
wprintf(L"%s\n",json.emit());
wprintf(L"Failed, response status code = %d\n",resp.get_StatusCode());
}
else {
wprintf(L"Outlook HTML Mail Sent.\n");
}
}