Create a System.Windows.Media.ImageSource From an Icon File in c#?

Question

I am programming in a WPF application in c#. I need to change the notifier icon sometimes;

I implemented the icon like this:

<tn:NotifyIcon x:Name="MyNotifyIcon" 
               Text="Title" 
               Icon="Resources/logo/Error.ico"/>

My solution is changing the Icon, the type of MyNotifyIcon.Icon is ImageSource, and I want to get by an icon file. I could find the way to do that.

Do somebody have some ideas how? Or have the any other solution?

Shortly, I have an address like /Resource/logo.icon, and I wanna get a System.Windows.Media.ImageSource

George Chondrompilas · Answer 1 · 2014-05-22T23:02:32.850

3

You can use the BitmapImage class:

        // Create the source
        BitmapImage img = new BitmapImage();
        img.BeginInit();
        img.UriSource = new Uri("./Resource/logo/logo.icon");
        img.EndInit();

BitmapImage class inherits from ImageSource class which means you can pass the BitmapImage object to NotifyIcon.Icon as:

NI.Icon = img;

edited May 22 '14 at 23:02

answered May 22 '14 at 22:37

George Chondrompilas

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You don't know if the .ico -multi icon file - (or .icon -mono icon file-, he doesn't explain it) have one or more icons in... I don't know if this code doesn't throw an exception – DrkDeveloper May 22 '14 at 22:39
If the .ico file has more than one icons in it, `Icon="Resources/logo/Error.ico"/>` would throw an exception too. – George Chondrompilas May 22 '14 at 22:44
@GeorgeChondrompilas what's the type of **image**? – cindywmiao May 22 '14 at 22:55
It's an object of Image class.(wpf control). You will not need it, sorry. – George Chondrompilas May 22 '14 at 23:01
@GeorgeChondrompilas when I use NI.Icon = img, throws the exception. NI.icon = (System.Windows.Media.ImageSource)img too. – cindywmiao May 22 '14 at 23:02
Can you give me more info about the exception please? – George Chondrompilas May 22 '14 at 23:06
System.Windows.Markup.WpfXamlParseException: "Unsupported URI syntax. Method expects a relative URI or a pack://application:,,,/ form of absolute URI." – cindywmiao May 22 '14 at 23:08
That means that the `"./Resource/logo/logo.icon"` URI is wrong. Replace it with the correct one. – George Chondrompilas May 22 '14 at 23:32
@GeorgeChondrompilas I found why, because my icon is frozen. – cindywmiao May 22 '14 at 23:43
Is there anything else I can help you with? – George Chondrompilas May 22 '14 at 23:44

score 1 · Answer 2 · answered Feb 11 '15 at 16:37

Are you using the NotifyIcon from the Hardcodet.Wpf.TaskbarNotification namespace created by Philipp Sumi? If so you have the option to either specify the icon as an ImageSource or an Icon.

TaskbarIcon notifyIcon = new TaskbarIcon();
// set using Icon
notifyIcon.Icon = some System.Drawing.Icon; 
// set using ImageSource
notifyIcon.IconSource = some System.Windows.Media.ImageSource;

Note that internally setting IconSource sets Icon.

To set from a resource.

notifyIcon.Icon = MyNamespace.Properties.Resources.SomeIcon

Note that only the `IconSource` property is bindable though. — g t, Feb 08 '16 at 08:32

score 0 · Answer 3 · edited May 23 '17 at 12:34

have you thought in do it with resources?

To get from resources:

MainNameSpace.Properties.Resources.NameOfIconFileInResources;

Put the icons in resources, if you have the image file (not icon) i have a method to change it:

    public static Icon toIcon(Bitmap b)
    {
        Bitmap cb = (Bitmap) b.Clone();
        cb.MakeTransparent(Color.White);
        System.IntPtr p = cb.GetHicon();
        Icon ico = Icon.FromHandle(p);
        return ico;
    }

And programmatically change it with the known attribute .Icon; Don't worry about ImageSource type.

Extracting image from icon (.ico) file:

Stream iconStream = new FileStream (MainNameSpace.Properties.Resources.NameOfIconFileINResources, FileMode.Open );
IconBitmapDecoder decoder = new IconBitmapDecoder ( 
    iconStream, 
    BitmapCreateOptions.PreservePixelFormat, 
    BitmapCacheOption.None );

// loop through images inside the file
foreach ( var item in decoder.Frames )
{
 //Do whatever you want to do with the single images inside the file
 this.panel.Children.Add ( new Image () { Source = item } );
}

// or just get exactly the 4th image:
var frame = decoder.Frames[3];

// save file as PNG
BitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(frame);
using ( Stream saveStream = new FileStream ( @"C:\target.png", FileMode.Create ))
{
    encoder.Save( saveStream );
}

But you must put the .ico file in resources, or take it with relative path...

Taken from How can you access icons from a Multi-Icon (.ico) file using index in C#

Shortly, I have a string like **./Resource/logo/logo.icon**, I want turn into a type of **Windows.Media.ImageSource** not **Icon** — cindywmiao, May 22 '14 at 22:24
Put it in resources! After: ImageSource heritage: ImageSource -> BitmapSource -> Bitmap. You want to do Image from Icon and then cast (or during the process). Icon has method called ToBitmap; — DrkDeveloper, May 22 '14 at 22:29
@DrkDeveloper You can't cast from an Icon to an ImageSource. — denver, Feb 11 '15 at 16:41

Create a System.Windows.Media.ImageSource From an Icon File in c#?

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