// This is a major hack to get the .NET's OFD to show with Thumbnail view by default!
// Luckily for us this is a covert hack, and not one where we're working around a bug
// in the framework or OS.
// This hack works by retrieving a private property of the OFD class after it has shown
// the dialog box.
// Based off code found here: http://vbnet.mvps.org/index.html?code/hooks/fileopensavedlghooklvview.htm
private static void EnableThumbnailView(FileDialog ofd)
{
// HACK: Must verify this still works with each new revision of .NET
try
{
Type ofdType = typeof(FileDialog);
FieldInfo fi = ofdType.GetField("dialogHWnd", BindingFlags.Instance | BindingFlags.NonPublic);
if (fi != null)
{
object dialogHWndObject = fi.GetValue(ofd);
IntPtr dialogHWnd = (IntPtr)dialogHWndObject;
IntPtr hwndLV = SafeNativeMethods.FindWindowExW(dialogHWnd, IntPtr.Zero, "SHELLDLL_DefView", null);
if (hwndLV != IntPtr.Zero)
{
SafeNativeMethods.SendMessageW(hwndLV, NativeConstants.WM_COMMAND, new IntPtr(NativeConstants.SHVIEW_THUMBNAIL), IntPtr.Zero);
}
}
}
catch (Exception)
{
// Ignore.
}
}
