Delphi 2010 - Decode Base64 encoded image from XML doc

Posted by James on Stack Overflow See other posts from Stack Overflow or by James
Published on 2010-04-15T11:19:46Z Indexed on 2010/04/15 11:23 UTC
Read the original article Hit count: 832

Filed under:

delphi-2010

|

xml-serialization

|

base64

I am trying to decode a base64 encoded EMF image from an XML document in my application and render it on screen, however, it never seems to appear.

If I copy/paste the data from the XML document into Notepad++ and use the Base64 Decode option and save the file as a .emf it opens fine in mspaint. So I think the issue is how I am decoding it.

I have tried the following decode methods described in these articles:

How to encode / decode Base 64 string
http://www.swissdelphicenter.ch/torry/showcode.php?id=1223

I have also tried the TIdDecoderMIME class to no avail.

Does anyone know the most reliable way of decoding a base64 encoded string from XML?

© Stack Overflow or respective owner

Related posts about delphi-2010

Synapse and string problems with HTTPSend in Delphi 2010

as seen on Stack Overflow - Search for 'Stack Overflow'
I have been trying to get to the bottom of this problem off and on for the past 2 days and I'm really stuck. Hopefully some smart folks can help me out. The issue is that I have a function that I call in a thread that downloads a file (using Synapse libraries) from a website that is passed to it… >>> More
Delphi 2010 Professional and remote database access

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, When looking for which version of Delphi 2010 to buy, we found the following limitation on the professional one: Delphi 2010 Professional is designed for developers building high-performance desktop GUI and touch-screen applications with (or without) embedded and local database … >>> More
Delphi 2010 Error Insight incorrectly flags "Undeclared Identifier"

as seen on Stack Overflow - Search for 'Stack Overflow'
In D2010, Error Insight is incorrectly underlining in red types like "TOpenDialog" (even though my unit and project's uses both include Dialogs). Also, in my method TMyFrame.Foo, it fails the same way by flagging a reference to a VCL component in my TMyFrame -- even though Foo and the component… >>> More
C# Style XML Comments in Delphi 2010

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, does Delphi 2010 have C# Style XML comments that show up when hovering over the method call? /// <summary> /// My comment here /// </summary> >>> More
Delphi 2010 buttons losing click event

as seen on Stack Overflow - Search for 'Stack Overflow'
I've been experimenting a quite strange problem using Delphi 2010. In one form (a quite complex one) some buttons are automagically losing the click event. I am not dynamically assigning the event or something (they are wired in IDE). The events are fired OK some times but suddenly (and randomly)… >>> More

Related posts about xml-serialization

XML Serialization is not including milliseconds in datetime field from Rails model

as seen on Stack Overflow - Search for 'Stack Overflow'
By default, the datetime field from the database is being converted and stripping off the milliseconds: some_datetime = "2009-11-11T02:19:36Z" attribute_before_type_cast('some_datetime') = "2009-11-11 02:19:36.145" If I try to overrride the accessor for this attribute like; def some_datetime … >>> More
XML Serialization of nested classes having Dictionary

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to XML-serialize a nested class. Both classes have dictionaries which I am serializing using this link. Serialization works fine but the nested class doesn't get de-serialized. Can you please let me know how to do it? >>> More
.net XML serialization: how to specify an array's root element and child element names

as seen on Stack Overflow - Search for 'Stack Overflow'
Consider the following serializable classes: class Item {...} class Items : List<Item> {...} class MyClass { public string Name {get;set;} public Items MyItems {get;set;} } I want the serialized output to look like: <MyClass> <Name>string</Name> <ItemValues> … >>> More
Element was not expected While Deserializing an Array with XML Serialization

as seen on Stack Overflow - Search for 'Stack Overflow'
OK. I'm trying to work on communicating with the Pivotal Tracker API, which only returns data in an XML format. I have the following XML that I'm trying to deserialize into my domain model. <?xml version="1.0" encoding="UTF-8"? <stories type="array" count="2" total="2" <story <id… >>> More
Iterate through deserialized xml object

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a deserialized xml c# objet. I need to iterate through the oject to display all items, in this case there's just one, and display the name, colors and sizes for each item. The xml: <?xml version="1.0" encoding="utf-8"?> <Catalog Name="Example"> <Items> <Item Name="ExampleItem"> … >>> More