Hello, all
I tested a python script using win32com and VC++, but I have some problem to
use interfaces from my python code to VC++.
-mypython code-
import pythoncom
…
IID_IShowMeDoDemo =
pythoncom.MakeIID("{5104D21B-5756-4ABA-8632-B386C283CCC3}")
_reg_clsid_ = "{12AECA5C-C50A-4f01-8CFB-CE5FC9FE16C1}"
_reg_libname = "ShowMeDoDemo Typelib"
class ShowMeDoDemo:
_public_methods_ = ['SFactorial','SHello']
_reg_progid_ = "ShowMeDo.Demo1"
_reg_clsid_ = "{5BA13EC0-8FCC-4d1b-ABED-AE52B2C8DBE3}"
def SHello(self):
"say Hello"
return "Hello World"
def SFactorial(self,n):
"calculate n!"
result = 1
for value in range(2,n+1):
result = result * value
return result
if __name__ == "__main__":
print "Registering COM server..."
import win32com.server.register
win32com.server.register.UseCommandLine(ShowMeDoDemo)
and I succeed Registering of this COM object and found its information with
OLE/VIEW – named ShowMeDo.Demo1 under python COM Server folder(object
classes)
I read a posted message from bbs regarding “Typelib python COM Server” so, I
wrote a .IDL file in hand as the instruction.
import "oaidl.idl";
import "ocidl.idl";
[
//below uuid is for type library COMTESTLib
uuid(12AECA5C-C50A-4f01-8CFB-CE5FC9FE16C1),
version(1.0),
helpstring("showMeDoDemo Typelib")
]
library ShowmeDoLib
{
importlib("stdole32.tlb");
importlib("stdole2.tlb");
//dispinterface IShowMeDoDemo;
[
object,
// below uuid is for Interface
uuid(5104D21B-5756-4ABA-8632-B386C283CCC3),
dual,
helpstring("IClient Interface"),
pointer_default(unique)
]
//methods of Client class
//interface IShowMeDoDemo : IDispatch
interface IShowMeDoDemo : IUnknown
{
//
import "UNKNWN.IDL";
//[out] BSTR cmd
[id(1100), helpstring("method Hello")] HRESULT SHello([out,
retval] BSTR* message);
//([in] BSTR cmd);
[id(1101), helpstring("method Factorial")] HRESULT
SFactorial([in] int fn, [retval,out] int* rfn);
};
[
//below uuid is CLISD of Search.dll
uuid(5BA13EC0-8FCC-4d1b-ABED-AE52B2C8DBE3),
helpstring("ShowMeDoDemo Class")
]
// class of Search.dll
coclass ShowMeDoDemo
{
// interfaces of class Client generated by Search.dll
[default] interface IShowMeDoDemo;
};
};
Then I executed “MILD” in VC98 and got some files names “xx.h” and
“xx_i.c”and tlb etc.
So, I generated a VC++ project to call the instance with those.
Even I succeed to compile but when I execute the result, it shows “interface
error” which called by hr==E_NOINSTANCE after queryinterface().
Do I miss anything or did something wrong?
Why can't I access interfaces of my python code from VC++?
Is there any way to call and use the “xxx.dll” file in python to VC. I’d
like to use my python methods with only “dll” in C/C++
(Not Extending python code to C since my purpose is providing my module to
VC user without exposing my code)
I expect any advice or a breakthrough from you all. I really appreciate with
your attention and help.
Best,
Ji
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