/// <summary>
/// Gets the main window of the application's process.
/// </summary>
/// <param name="waitTimeout">An optional timeout. If null is passed, the timeout is infinite.</param>
/// <returns>The main window object as <see cref="Window" /> or null if no main window was found within the timeout.</returns>
public Window GetMainWindow(TimeSpan?waitTimeout = null)
{
this.ThrowIfDisposed();
if (this.mainWindow != null)
{
return(this.mainWindow);
}
var start = DateTime.Now;
this.WaitForMainWindow(waitTimeout);
if (this.mainWindow != null)
{
return(this.mainWindow);
}
lock (this.gate)
{
if (this.mainWindow != null)
{
return(this.mainWindow);
}
var mainWindowHandle = this.MainWindowHandle;
if (mainWindowHandle == IntPtr.Zero)
{
throw new InvalidOperationException($"Did not find main window for {this.processReference.Process.ProcessName}. If startup is slow try with a longer wait.");
}
if (waitTimeout != null)
{
waitTimeout = waitTimeout - (DateTime.Now - start);
}
Wait.UntilResponsive(mainWindowHandle, waitTimeout ?? TimeSpan.MaxValue);
return(this.mainWindow = new Window(AutomationElement.FromHandle(mainWindowHandle), isMainWindow: true));
}
}
