Use a property for the colour dialog's information.

[Mike McCormack]

>> -                    SetWindowLongPtrW(hDlg, DWLP_USER, 0); /* we 
>> don't need it anymore */
>> +                        SetPropW( hDlg, szColourDialogProp, lpp );

> SetPropW( hDlg, szColourDialogProp, lpp ) should be SetPropW( hDlg, 
> szColourDialogProp, NULL ).

That's what I get for writing code at 1am after a couple of beers :/  It 
probably should be RemovePropW.

Mike