win32clipboard.GetPriorityClipboardFormat
int = GetPriorityClipboardFormat(formats)
Returns the first available clipboard format in the specified list.
Parameters
Win32 API References
Return Value
If the function succeeds, the return value is the first clipboard format in the list for which data is available. If the clipboard is empty, the return value is NULL. If the clipboard contains data, but not in any of the specified formats, the return value is -1.