/// <summary>
/// Creates an instance of the <see cref="T:WebBrowser"/>.
/// </summary>
/// <param name="activeXWebBrowser">The ActiveX Web Browser.</param>
/// <returns>An instance of <see cref="T:WebBrowser"/> or <see langword="null"/> if <paramref name="activeXWebBrowser"/> is <see langword="null"/>.</returns>
internal static WebBrowser Create(Interop.UnsafeNativeMethods.IWebBrowser2 activeXWebBrowser)
{
if (activeXWebBrowser == null)
{
return(null);
}
return(new WebBrowser(activeXWebBrowser));
}
/// <summary>
/// Determines whether two <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/> are the same.
/// </summary>
/// <param name="activeXWebBrowser1">The first <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/> to compare.</param>
/// <param name="activeXWebBrowser2">The second <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/> to compare.</param>
/// <returns>
/// <see langword="true" /> if the two <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/> are the same; otherwise, <see langword="false" />.
/// </returns>
private static bool ActiveXWebBrowserEquals(Interop.UnsafeNativeMethods.IWebBrowser2 activeXWebBrowser1, Interop.UnsafeNativeMethods.IWebBrowser2 activeXWebBrowser2)
{
try
{
return(GetPtrForActiveXWebBrowser(activeXWebBrowser1) == GetPtrForActiveXWebBrowser(activeXWebBrowser2));
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex);
return(false);
}
}
/// <summary>
/// Gets the <see cref="T:IntPtr"/> for <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/>.
/// </summary>
/// <param name="activeXWebBrowser">The <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/>.</param>
/// <returns>The <see cref="T:IntPtr"/> for <see cref="T:Interop.UnsafeNativeMethods.IWebBrowser2"/>.</returns>
private static IntPtr GetPtrForActiveXWebBrowser(Interop.UnsafeNativeMethods.IWebBrowser2 activeXWebBrowser)
{
IntPtr activeXWebBrowserPtr = IntPtr.Zero;
try
{
activeXWebBrowserPtr = System.Runtime.InteropServices.Marshal.GetComInterfaceForObject(activeXWebBrowser, typeof(Interop.UnsafeNativeMethods.IWebBrowser2));
}
finally
{
if (activeXWebBrowserPtr != IntPtr.Zero)
{
System.Runtime.InteropServices.Marshal.Release(activeXWebBrowserPtr);
}
}
return(activeXWebBrowserPtr);
}
