How to get resource as byte array in c#?

Question

I added image to my c# project from Project settings -> Resources
How can i get this image at runtime?
I trying this:

public byte[] GetResource(string ResourceName)
{
    System.Reflection.Assembly asm = Assembly.GetEntryAssembly();

    // list all resources in assembly - for test
    string[] names = asm.GetManifestResourceNames(); //even here my TestImg.png is not presented

    System.IO.Stream stream = asm.GetManifestResourceStream(ResourceName); //this return null of course

    byte[] data = new byte[stream.Length];

    stream.Read(data, 0, (int)stream.Length);

    return data;
}

I call this function this way:

byte[] data = GetResource("TestImg.png");

But I see my image in Resources folder in project explorer.

Could anyone tell what's wrong there?

Answer 1

You need to set the file TestImg.png as an "Embedded Resource." The resource name would then be Resources/TestImg.png .

Answer 2

您可以使用Properties.Resources.TestImg访问图像。

Answer 3

This works:

    var info = Application.GetResourceStream(uri);
    var memoryStream = new MemoryStream();
    info.Stream.CopyTo(memoryStream);
    return memoryStream.ToArray();

In additional, if you want to save the image to your drive:

    var b =
    new Bitmap(namespace.Properties.Resources.image_resouce_name);
    b.Save("FILE LOCATION");

Answer 4

You can edit the Resources.resx file and change:

  <data name="ResourceKey" type="System.Resources.ResXFileRef, System.Windows.Forms">
    <value>..\Resources\Image.jpg;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
  </data>

to (replace the type and assembly definition after the file name):

  <data name="ResourceKey" type="System.Resources.ResXFileRef, System.Windows.Forms">
    <value>..\Resources\Image.jpg;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
  </data>

Now you can access the image as byte array using Properties.Resources.ResourceKey . I don't know if this can be done without manually editing the resource file.