我需要将Excel(或通过VBA)中的图像转换为base64(最后我将生成
XML输出).
我怎样才能做到这一点？我是否需要引用DOM？
我一直在阅读this question,但它只适用于文字字符串而非图像……
有没有人有我能看到的代码？
解决方法
这是一个功能.不记得我从哪里得到它.
Public Function EncodeFile(strPicPath As String) As String
Const adTypeBinary = 1 ' Binary file is encoded
' Variables for encoding
Dim objXML
Dim objDocElem
' Variable for reading binary picture
Dim objStream
' Open data stream from picture
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = adTypeBinary
objStream.Open
objStream.LoadFromFile (strPicPath)
' Create XML Document object and root node
' that will contain the data
Set objXML = CreateObject("MSXml2.DOMDocument")
Set objDocElem = objXML.createElement("Base64Data")
objDocElem.dataType = "bin.base64"
' Set binary value
objDocElem.nodeTypedValue = objStream.Read()
' Get base64 value
EncodeFile = objDocElem.Text
' Clean all
Set objXML = Nothing
Set objDocElem = Nothing
Set objStream = Nothing
End Function
