/// <summary>
/// Initializes a new instance of the <see cref="ActivationContextHelper"/> class.
/// </summary>
/// <param name="manifestFile">The manifest file.</param>
public ActivationContextHelper(string manifestFile)
{
if (!Platform.IsWindows)
{
return;
}
// Specifying a full path to the manifest file like this allows our unit tests to work even with a
// test runner like Resharper 8 which does not set the current directory to the one containing the DLLs.
// Note that we have to use CodeBase here because NUnit runs the tests from a shadow copy directory
// that doesn't contain the manifest file.
string path = new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath;
string location = Path.GetDirectoryName(path);
var context = new ActCtx
{
cbSize = Marshal.SizeOf(typeof(ActCtx)),
lpSource = Path.Combine(location, manifestFile)
};
IntPtr handle = CreateActCtx(ref context);
if (handle == (IntPtr)(-1))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Error creating activation context");
}
m_activationContext = handle;
}
private static bool EnsureActivateContextCreated()
{
lock (_contextCreationLock)
{
if (!_contextCreationSucceeded)
{
// Pull manifest from the .NET Framework install
// directory
var assemblyLoc = typeof(object).Assembly.Location;
string manifestLoc = null;
var installDir = string.Empty;
if (!string.IsNullOrWhiteSpace(assemblyLoc))
{
installDir = Path.GetDirectoryName(assemblyLoc) ?? string.Empty;
const string manifestName = "XPThemes.manifest";
manifestLoc = Path.Combine(installDir, manifestName);
}
if (!string.IsNullOrWhiteSpace(manifestLoc) && !string.IsNullOrWhiteSpace(installDir))
{
_enableThemingActivationContext = new ActCtx
{
cbSize = Marshal.SizeOf(typeof(ActCtx)),
lpSource = manifestLoc,
lpAssemblyDirectory = installDir,
dwFlags = ACTCTX_FLAG_ASSEMBLY_DIRECTORY_VALID,
};
// Set the lpAssemblyDirectory to the install
// directory to prevent Win32 Side by Side from
// looking for comctl32 in the application
// directory, which could cause a bogus dll to be
// placed there and open a security hole.
// Note this will fail gracefully if file specified
// by manifestLoc doesn't exist.
_activationContext = CreateActCtx(ref _enableThemingActivationContext);
_contextCreationSucceeded = !_activationContext.IsInvalid;
}
}
// If we return false, we'll try again on the next call into
// EnsureActivateContextCreated(), which is fine.
return(_contextCreationSucceeded);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ActivationContextHelper"/> class.
/// </summary>
/// <param name="manifestFile">The manifest file.</param>
public ActivationContextHelper(string manifestFile)
{
#if !__MonoCS__
// Specifying a full path to the manifest file like this allows our unit tests to work even with a
// test runner like Resharper 8 which does not set the current directory to the one containing the DLLs.
// Note that we have to use CodeBase here because NUnit runs the tests from a shadow copy directory
// that doesn't contain the manifest file.
string path = new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath;
string location = Path.GetDirectoryName(path);
var context = new ActCtx
{
cbSize = Marshal.SizeOf(typeof(ActCtx)),
lpSource = Path.Combine(location, manifestFile)
};
IntPtr handle = CreateActCtx(ref context);
if (handle == (IntPtr)(-1))
throw new Win32Exception(Marshal.GetLastWin32Error(), "Error creating activation context");
m_activationContext = handle;
#endif
}
private static extern IntPtr CreateActCtx(ref ActCtx actCtx);
private static extern IntPtr CreateActCtx(ref ActCtx actCtx);
private static extern ActivationContextSafeHandle CreateActCtx(ref ActCtx actCtx);
