“Masaki Suketa” masaki.suketa@nifty.ne.jp wrote in message
news:200208041151.UAA28336@smtp2.nifty.ne.jp…
However, my long term problem with WIN32OLE remains:
components with an optional parameter seems to not be working. I got
this
document object with a Save method taking a filename and an optional
second
parameter. This won’t execute.
Could you show me the script which is not working?
First of all the following Visual Basic script does result in a file:
Set mdm = CreateObject( "MDM.Document.2")
mdm.Save ("testfile.mdd")
I cannot do the same with Ruby.
The problem is with the Save method of the following interface (only the
essential part shown):
[
odl,
uuid(C95896B9-F8E6-4CFE-B960-6A667FFA6658),
helpstring(“IDocument Interface”),
dual,
oleautomation
]
interface IDocument : IMDMLabeledObject {
[id(0x0000000b), propget, helpstring(“property CurrentVersion”)]
…
HRESULT Versions([out, retval] IVersions** pVal);
[id(0x00000022), helpstring("method Save")]
HRESULT Save([in, optional] VARIANT destination);
…
};
Here is the script and the runtime results. I think this has something to do
with optional parameters. I did the same test about a year ago. I did not
have problems using VB script for example.
require 'win32ole'
mralias = WIN32OLE.new(‘mrAliasMap.Mapper’)
puts mralias.CreateAlias("this is a long
name").Name
mdm = WIN32OLE.new(‘MDM.Document.2’)
mdm.Save (‘testfile.mdd’)
puts ‘done’
The yields
C:\test\w32\win32ole\sample>ruby test.rb
thialona
test.rb:6:in `method_missing’: Save (WIN32OLERuntimeError)
OLE error code:80070057 in
HRESULT error code:0x80020009
Undtagelse opstod
from test.rb:6
The first output line indicates that another COM component is working
(truncating a long name).
The Com error is partly in danish: “Undtagelse opstod” which translates to
“an exception occurred”. Althoug the error says “method missing” this isn’t
true. If I change the Save to use two parameters I get a different error;
require 'win32ole'
mralias = WIN32OLE.new(‘mrAliasMap.Mapper’)
puts mralias.CreateAlias("this is a long
name").Name
mdm = WIN32OLE.new(‘MDM.Document.2’)
mdm.Save (‘testfile.mdd’, 0)
puts ‘done’
This yields
C:\test\w32\win32ole\sample>ruby test.rb
thialona
test.rb:6:in `method_missing’: Save (WIN32OLERuntimeError)
OLE error code:0 in
HRESULT error code:0x8002000e
Ugyldigt antal parametre
from test.rb:6
The danish message is know:
“Ugyldigt antal parametre” which translates to “Illegal number of
parameters”. So clearly the save method is recognized.
If I change the Save method to a non-existing name “Safe”, I get the
following output:
C:\test\w32\win32ole\sample>ruby test.rb
thialona
test.rb:6:in method_missing': Unknown property or method : Safe’
(WIN32OLERunt
imeError)
HRESULT error code:0x80020006
Ukendt navn
from test.rb:6
The danish text “Ukendt navn” translates to “Unknown name”.
Mikkel
