The user can view the contents of the clipboard by using the Windows application Clipboard (CLIPBRD.EXE); for this reason, Clipboard is also known as the clipboard viewer. It lists the names of all the formats for which handles (NULL or otherwise) exist in the clipboard, and displays the contents of the clipboard in one of these formats.
The clipboard viewer can display all the standard data formats. If there are handles for more than one standard data format, the clipboard viewer displays only one format, choosing from the following list, in decreasing order of priority: CF_TEXT, CF_OEMTEXT, CF_METAFILEPICT, CF_BITMAP, CF_SYLK, and CF_DIF.
For more information about clipboard formats, see the Microsoft Windows Programmer's Reference, Volume 4.