Ultimate ToolBox Common Dialog with Preview
COXPreviewDialog
This class provides a way of implementing a common FileOpen dialog with a preview area in it. This is a generic class suitable as a base class for all File-Open dialogs needing preview functionality. Some important virtual overridables are available.
Features:
•	Easy to implement 
•	Straightforward C++ interface 
•	Works in both 16 & 32-bit applications, switches automatically from template when used in Win 95 or Win NT. (There is a problem in the NT 4.0 Beta that's being looked into) 
•	For 256 color modes, palette handling is provided through a virtual function 
•	Turn the Preview on and off with a checkbox in the File Open dialog 
COXBmpFileDialog
This class implements a common FileOpen dialog with a preview area that displays the BMP/DIB image format. This class is derived from COXPreviewDialog
Features:

Same as COXPreviewDialog but this derived class previews BMP/DIB images.
How to use
Nothing special, just pull it into your project and there you go.