VML的base64形象

问题描述

我使用Outlook 2007中HTML签名签名包含一些图像文件。我想嵌入图像文件，所以它不应该在附件。但ν：图片不显示图片

 ＆LT;！ -  [如果GTE VML 1] GT;
    ＆LT;五：影像风格=WIDTH：104px;高度：108px; SRC =数据：图像/ JPG; BASE64，/ 9J / 4AAQSkZ ...... AgEAgEAgEAgEAgP // Z＆GT;
        ＆LT; / V：图像＆GT;
    百分比抑制率ENDIF]  -  GT！;
    ＆LT;！[如果VML！]＆GT;＆LT; IMG WIDTH = 104 HEIGHT = 108
src=\"data:image/jpg;base64,/9j/4AAQSkZJR...AICpUuZdbmkMBXsnT3knOxse8nkcs+B4iAtsAgEAgEAgEAgEAgEAgP//Z\" ALT =footer_logo.jpgν：形状=Resim_x0020_4＆GT;＆下; ENDIF]≥！
 

解决方案

Outlook使用Word来渲染图像，Word不支持嵌入式（SRC =数据：图像）的图像。您需要将图像附加为一个文件，设置附件（Attachment.PropertyAccessor.SetProperty）的PR_ATTACH_CONTENT_ID财产，并确保你的HTML通过SRC = CID指的是图像：XYZ属性（其中xyz是值了PR_ATTACH_CONTENT_ID属性）。

PR_ATTACH_CONTENT_ID财产DASL名字是

I use html signature for Outlook 2007. The signature contains a few image file. I want embed image files so it's shouldn't be on attachment. But v:image doesn't show image.

<!--[if gte vml 1]>
    <v:image style="width:104px;height:108px;" src="data:image/jpg;base64,/9j/4AAQSkZ......AgEAgEAgEAgEAgP//Z">
        </v:image>
    <![endif]-->
    <![if !vml]><img width=104 height=108
src="data:image/jpg;base64,/9j/4AAQSkZJR...AICpUuZdbmkMBXsnT3knOxse8nkcs+B4iAtsAgEAgEAgEAgEAgEAgP//Z" alt="footer_logo.jpg" v:shapes="Resim_x0020_4"><![endif]>

解决方案

Outlook uses Word to render the images, and Word does not support embedded (src="data:image") images. You need to attach the image as a file, set the PR_ATTACH_CONTENT_ID property on the attachment (Attachment.PropertyAccessor.SetProperty), and make sure your HTML refers to the image through the src=cid:xyz attribute (where xyz is the value of the PR_ATTACH_CONTENT_ID property).

PR_ATTACH_CONTENT_ID property DASL name is http://schemas.microsoft.com/mapi/proptag/0x3712001F

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