If I understand what you are saying, you want to be able to get at the underlying C++ object given a COM Interface pointer? Here is a trick that comes from ATL...
88
Michael Geddes
mgeddes@...
May 22, 2001 12:23 am
There are two other methods that I know of. The first is to make use of RTTI (which usually defaults to disabled) and use dynamic_cast to cast from the...
89
Paul Hollingsworth
egroups@...
May 22, 2001 1:35 am
1. Beware that using dynamic_cast<> assumes that the interface is implemented by C++ code that resides in the same apartment as your method call. While this is...
90
jbandela@...
May 22, 2001 3:29 pm
Suppose 2 interfaces have a method with the same name. Is there an easy way to implement both methods separately for the 2 interfaces in 1 coclass?...
91
Paul Hollingsworth
egroups@...
May 23, 2001 4:00 am
... in ... Well, here's how I would do it: Say you have two interfaces - ICowboy and IDrawable - defined as follows: [ object, ...
92
jbandela@...
May 23, 2001 5:22 am
Thanks. By the way, what is the difference between simple_object and coclass? Is there a way to use coclass while overriding the interface implementations?...
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Paul Hollingsworth
egroups@...
May 23, 2001 6:46 pm
... and ... interface ... Basically, no. It's not worth the effort - coclass<> doesn't really provide that much functionality anyway. coclass<> is just a...
94
Sofus Mortensen
sofus@...
May 26, 2001 8:12 pm
Is this something that we could solve by adding a rename facility to tlb2h.exe ? A plain keyword rename is not good enough, since it would rename both Draw...
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Michael Geddes
mgeddes@...
May 28, 2001 12:46 am
New constructor for key<> The problem is when iterating through registry subkeys (which is a name iterator), it is useful to be able to interrogate values &c...
96
Paul Hollingsworth
egroups@...
Jun 4, 2001 2:16 am
Hi guys, I've just discovered a bug in tlb2h.exe. Given the following IDL: [id(2)] HRESULT InterfaceNames([in] IUnknown *pUnwrapped, [out, retval]...
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Paul Hollingsworth
egroups@...
Jun 4, 2001 2:48 am
Hi Michael, I think you are misunderstanding the key() member that is returned by name_iterator. It is the parent key, not the subkey. Iterating through...
98
Michael Geddes
mgeddes@...
Jun 4, 2001 6:24 am
Yep - I misunderstood, got it now. Thanks for that code. I did it that way in the end anyway (except I forgot the KEY_READ). It's still a sh*t load easier...
99
Sofus Mortensen
sofus@...
Jun 5, 2001 8:36 pm
Hi, I think this one is already fixed in the latest version. Could you check that you are actually using the latest version? Best regards, Sofus Mortensen ...
100
Sofus Mortensen
sofus@...
Jun 10, 2001 1:05 pm
Hi! I have uploaded Comet alpha 8 to the website (www.lambdasoft.dk/comet). This release contains: * GCC/MingW fixes submitted by Michael Geddes. Thanks...
101
Michael Geddes
mgeddes@...
Jun 18, 2001 9:01 am
Currency implementation Here's an implementation of a wrapper for CURRENCY CY values. Most stuff it does through VarCy functions, but it also adds the divide...
102
Michael Geddes
mgeddes@...
Jun 18, 2001 9:11 am
tlb2h.cpp command-line I've added some better command-line handling for tlb2h.cpp, and a better brief description. It now supports multiple files including...
103
Michael Geddes
mgeddes@...
Jun 18, 2001 9:15 am
Getting Type libraries from a different spot. For one reason or another, I decided that I wanted to be able to load type-libraries that weren't registered...
104
Paul Hollingsworth
egroups@...
Jun 18, 2001 3:29 pm
... Incidentally, the first importlib("stdole32.tlb"); is strictly unnecessary - stdole2.tlb is the newer version of the type library - it is a superset of...
105
Michael Geddes
mgeddes@...
Jun 21, 2001 4:55 am
try_cast I have a problem witht he way try_cast handles NULL values. Here is the implementation of try_cast. template<typename Itf2> com_ptr(const...
106
Michael Geddes
mgeddes@...
Jun 21, 2001 7:41 am
More on com_ptr This adds the following functionality: Use create_nothrow for a create that DOESN'T throw an exception. try_cast from a NULL pointer succeeds...
107
Sofus Mortensen
sofus@...
Jun 21, 2001 9:49 pm
Thanks, Michael! I have added it the alpha 9 release. I think it would be cool to have tlb2h.exe use the new wrapper. Best regards, http://SofusMortensen.com ...
108
Sofus Mortensen
sofus@...
Jun 21, 2001 9:49 pm
Many thanks for the patch, Michael. I have updated the tlb2h.cpp for Alpha 9 with your changes. Best regards, http://SofusMortensen.com ... From: Michael...
109
Sofus Mortensen
sofus@...
Jun 21, 2001 9:49 pm
Thanks! I have merged your changes into alpha 9. Best regards, http://SofusMortensen.com <http://sofusmortensen.com/> ... From: Michael Geddes...
110
Sofus Mortensen
sofus@...
Jun 21, 2001 9:49 pm
Michael, Having com_ptr::operator-> throw on null pointers removes the only concern that I had against not throwing on try_cast(0). The only argument against...
111
Sofus Mortensen
sofus@...
Jun 21, 2001 10:01 pm
I have just uploaded alpha 9 to the website: http://www.lambdasoft.dk/comet Changes: - CURRENCY wrapper added by Michael Geddes. - Nutshell wrappers didn't...
112
Michael Geddes
mgeddes@...
Jun 22, 2001 12:55 am
tlb2h - Extra command-line options. I have merged the alpha9 changes into this version. (but not tested - so somebody should check it out). This adds...
113
Michael Geddes
mgeddes@...
Jun 22, 2001 1:01 am
Documentation. I am finding the lack of documenation a problem - not for myself - I love pouring through source-code to work out what things do - but for some...
114
Michael Geddes
mgeddes@...
Jun 22, 2001 1:07 am
<<tlb2h.cpp>>...
115
Michael Geddes
mgeddes@...
Jun 22, 2001 1:07 am
Some comments for atl_module.h Some class documentation: <<atl_module.h>>...
