I am using the methods below to embed any number of files inside an executable
private void EmbedFiles(IEnumerable<string> files)
{
const string exePath = @"C:\SimpleApp.exe";
foreach (var file in files)
ResourceUpdate.WriteFileToResource(exePath, file);
}
[DllImport("kernel32.dll", EntryPoint = "BeginUpdateResourceW", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
internal static extern IntPtr BeginUpdateResource(string pFileName, bool bDeleteExistingResources);
[DllImport("kernel32.dll", EntryPoint = "UpdateResourceW", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool UpdateResource(IntPtr hUpdate, string lpType, string lpName, short wLanguage, byte[] lpData, int cbData);
[DllImport("kernel32.dll", EntryPoint = "EndUpdateResourceW", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
internal static extern bool EndUpdateResource(IntPtr hUpdate, bool fDiscard);
internal static void WriteFileToResource(string path, string file)
{
var resourceName = Path.GetFileName(file);
using (var binaryStream = new FileStream(file, FileMode.Open, FileAccess.Read))
{
byte[] data = null;
var resourceLanguage = MakeLanguageID();
try
{
data = new byte[binaryStream.Length];
binaryStream.Read(data, 0, (int)binaryStream.Length);
}
catch (Exception ex)
{
throw new Exception(string.Format("Error reading {0}: {1}", file, ex.Message), ex);
}
var h = BeginUpdateResource(path, false);
Write(h, "File", resourceName, resourceLanguage, data);
}
}
internal static void Write(
IntPtr h,
string resourceType,
string resourceName,
short resourceLanguage,
byte[] buffer)
{
try
{
if (UpdateResource(h, resourceType, resourceName, resourceLanguage, buffer, buffer.Length))
EndUpdateResource(h, false);
else
throw new Win32Exception(Marshal.GetLastWin32Error());
}
catch (Exception ex)
{
throw new Exception(string.Format("Error writing {0}: {1}", resourceName, ex.Message), ex);
}
}
static short MakeLanguageID()
{
return (short)CultureInfo.CurrentUICulture.LCID;
}
In the code below what I am trying to do is to extract the embedded files from the target exe in order to save them in a selected directory but I am not able to find the embedded resources knowing that they are there and I can see them using a tool like Resource Hacker.
var assembly = Assembly.GetExecutingAssembly();
var names = Assembly.GetExecutingAssembly().GetManifestResourceNames();
foreach (string filename in names)
{
MessageBox.Show(filename);
}
}
I created a sample project to show the problem. Please find it
here
Any advice or help would be much appreciated.