[python-win32] Files in clipboard with DropEffect?

[Mark Hammond]

I think I made that more complicated than necessary - you can probably 
perform the exact same steps using just win32clipboard - the key is 
checking is that clipboard format is available, getting the data, then 
using struct to convert it to an int.

Mark

On 11/12/2009 11:28 AM, Mark Hammond wrote:
> On 10/12/2009 5:05 PM, Stuart Axon wrote:
>> Hi,
>> I made the a script to manipulate files copied into the clipboard from
>> explorer.
>> To know if the file was cut or copied it seems need to get information
>> about the DropEffect - is there a way to do this from win32clipboard ?
>
> I think you want to look at pythoncom.OleGetClipboard(), then using the
> IDataObject returned. IIRC, you will need to query for the clipboard
> format CFSTR_PREFERREDDROPEFFECT and do other non-obvious stuff.
>
> The following code seems to work (although note various errors may be
> raised if what you expect isn't in the clipboard.
>
> Note that you don't need to jump through these hoops when you are the
> "drop target" - the drop target is passed this flag as a param as it is
> dropped.
>
> HTH,
>
> Mark
>
> from win32com.shell import shellcon
> import pythoncom
> import win32clipboard
> import struct
>
> CF_PREFERREDDROPEFFECT = win32clipboard.RegisterClipboardFormat(
> shellcon.CFSTR_PREFERREDDROPEFFECT)
>
> data_obj = pythoncom.OleGetClipboard()
>
> # Make a FORMATETC
> fe = (CF_PREFERREDDROPEFFECT, None, pythoncom.DVASPECT_CONTENT, -1,
> pythoncom.TYMED_HGLOBAL)
> medium = data_obj.GetData(fe)
> de = struct.unpack("i", medium.data[:4])[0]
> print "Drop effect is", de