//--------------------------------------------------------------
#region Methods
//--------------------------------------------------------------
/// <summary>
/// Makes sure a console instance is attached to the process.
/// </summary>
/// <returns>
/// A disposable console object.
/// </returns>
/// <remarks>
/// <para>
/// If a console is already attached (see <see cref="HasConsole"/>), this method and the
/// returned <see cref="IDisposable"/> do nothing. If no console is attached, a new
/// console will be attached. The temporary console will be detached when the returned
/// <see cref="IDisposable"/> is disposed. When the console is being closed, the user must
/// press a key ("Press any key to continue...") and the temporary console and the
/// application is blocked until the key is pressed.
/// </para>
/// <para>
/// This method is often used in a <see langword="using"/> statement like this:
/// </para>
/// <code lang="csharp" title="Example: Using AttachConsole in a using statement.">
/// <![CDATA[
/// using (ConsoleHelper.AttachConsole)
/// {
/// Console.WriteLine("Important message...");
/// }
/// ]]>
/// </code>
/// <para>
/// If a temporary console has to be attached, it is best to keep this console alive as long
/// as you need it. Do not call <see cref="AttachConsole"/>/<see cref="DetachConsole"/>
/// several time in the application lifetime.
/// </para>
/// </remarks>
public static IDisposable AttachConsole()
{
var hasConsole = HasConsole;
var consoleRegion = new ConsoleRegion(hasConsole);
if (!hasConsole)
{
NativeMethods.AllocConsole();
// Initialize stdout and stderror. Code taken from
// http://stackoverflow.com/questions/160587/no-output-to-console-from-a-wpf-application.
Type type = typeof(Console);
FieldInfo @out = type.GetField("_out", BindingFlags.Static | BindingFlags.NonPublic);
FieldInfo error = type.GetField("_error", BindingFlags.Static | BindingFlags.NonPublic);
MethodInfo initializeStdOutError = type.GetMethod("InitializeStdOutError", BindingFlags.Static | BindingFlags.NonPublic);
Debug.Assert(@out != null);
Debug.Assert(error != null);
Debug.Assert(initializeStdOutError != null);
@out.SetValue(null, null);
error.SetValue(null, null);
initializeStdOutError.Invoke(null, new object[] { true });
}
return(consoleRegion);
}
//--------------------------------------------------------------
/// <summary>
/// Makes sure a console instance is attached to the process.
/// </summary>
/// <returns>
/// A disposable console object.
/// </returns>
/// <remarks>
/// <para>
/// If a console is already attached (see <see cref="HasConsole"/>), this method and the
/// returned <see cref="IDisposable"/> do nothing. If no console is attached, a new
/// console will be attached. The temporary console will be detached when the returned
/// <see cref="IDisposable"/> is disposed. When the console is being closed, the user must
/// press a key ("Press any key to continue...") and the temporary console and the
/// application is blocked until the key is pressed.
/// </para>
/// <para>
/// This method is often used in a <see langword="using"/> statement like this:
/// </para>
/// <code lang="csharp" title="Example: Using AttachConsole in a using statement.">
/// <![CDATA[
/// using (ConsoleHelper.AttachConsole)
/// {
/// Console.WriteLine("Important message...");
/// }
/// ]]>
/// </code>
/// <para>
/// If a temporary console has to be attached, it is best to keep this console alive as long
/// as you need it. Do not call <see cref="AttachConsole"/>/<see cref="DetachConsole"/>
/// several time in the application lifetime.
/// </para>
/// </remarks>
public static IDisposable AttachConsole()
{
var hasConsole = HasConsole;
var consoleRegion = new ConsoleRegion(hasConsole);
if (!hasConsole)
{
NativeMethods.AllocConsole();
// Initialize stdout and stderror. Code taken from
// http://stackoverflow.com/questions/160587/no-output-to-console-from-a-wpf-application.
Type type = typeof(Console);
FieldInfo @out = type.GetField("_out", BindingFlags.Static | BindingFlags.NonPublic);
FieldInfo error = type.GetField("_error", BindingFlags.Static | BindingFlags.NonPublic);
MethodInfo initializeStdOutError = type.GetMethod("InitializeStdOutError", BindingFlags.Static | BindingFlags.NonPublic);
Debug.Assert(@out != null);
Debug.Assert(error != null);
Debug.Assert(initializeStdOutError != null);
@out.SetValue(null, null);
error.SetValue(null, null);
initializeStdOutError.Invoke(null, new object[] { true });
}
return consoleRegion;
}
