Am 21.09.2010 12:34, schrieb David Naylor:
> Hi,
>
> I'm trying to use multiple instances of Excel with comtypes. Ideally I would
> like to:
> - iterate over all active instances of Excel
> - get a Workbook using its (prior) known name (the Workbook would have been
> opened in one of the excel instances).
>
> Unfortunately CreateObject creates a new instance of Excel and
> GetActiveObject
> returns the first instance of Excel, which invariably does not have the
> required workbook.
>
> My searches for a solution came up with BindToMoniker which will allow me to
> get a workbook (solves the second problem) but I cannot figure out how to get
> that to work in comtypes.
Here is a somewhat hackish version that works without defining the IMoniker
interface in comtypes:
"""
from comtypes import IUnknown, POINTER, byref, oledll
from comtypes.client import wrap
def BindToFile(path):
moniker = POINTER(IUnknown)()
oledll.ole32.CreateFileMoniker(unicode(path),
byref(moniker))
result = POINTER(IUnknown)()
oledll.ole32.BindMoniker(moniker,
0,
byref(result._iid_),
byref(result))
return wrap(result)
if __name__ == "__main__":
import sys
print BindToFile(sys.argv[1])
"""
It prints
<POINTER(_Workbook) ptr=0x298724 at 3248cb0>
if called with a path of an xls file.
Thomas
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