openFileDialog Filter only for 24-bit Bitmaps C#

Is it possible开发者_如何转开发 to filter openFileDialog in C# only for 24-bit Bitmaps ?

As far as I know, no. It might be possible to add a filter for this to the Windows Explorer (using rootkit strategies) but this doesn't sound very valueable nor useful for a real world application. Your best bet is allowing the user to pick an image and then checking it right after closing the dialog window.