ATL classes which do not need ATL library

Question

Recently I discovered the useful ATL class CPath. I used it in a MFC application. I am not linking either dynamically or statically to the ATL library. My application built with no errors.

Evidently there is a large set of ATL template classes which can be used in an MFC application without needing the ATL library. Is there a list of these ATL classes anywhere ?

Answer 1

Recently I discovered the useful ATL class CPath. I used it in a MFC application. I am not linking either dynamically or statically to the ATL library. My application built with no errors.

Evidently there is a large set of ATL template classes which can be used in an MFC application without needing the ATL library. Is there a list of these ATL classes anywhere ?

You are using CPath that's why you don't need ATL like if you use CString you don't need ATL but if you use CStringT or CPathT you have to add atl header file inside your code.Here is a List for ATL/MFC shared class

Thanks

---

Rupesh Shukla

Answer 2

Recently I discovered the useful ATL class CPath. I used it in a MFC application. I am not linking either dynamically or statically to the ATL library. My application built with no errors.

Evidently there is a large set of ATL template classes which can be used in an MFC application without needing the ATL library. Is there a list of these ATL classes anywhere ?

You are using CPath that's why you don't need ATL like if you use CString you don't need ATL but if you use CStringT or CPathT you have to add atl header file inside your code.Here is a List for ATL/MFC shared class

Thanks

---

Rupesh Shukla

Adding a header file I already know. But some of the ATL headers require linking with the ATL library while others do not. I am looking for a list of ATL header files which can be used in MFC without having to link to the ATL library.

Answer 3

Adding a header file I already know. But some of the ATL headers require linking with the ATL library while others do not. I am looking for a list of ATL header files which can be used in MFC without having to link to the ATL library.

Check out the link mentioned in my last post . It has All the information you want.

Thanks

---

Rupesh Shukla

Answer 4

Adding a header file I already know. But some of the ATL headers require linking with the ATL library while others do not. I am looking for a list of ATL header files which can be used in MFC without having to link to the ATL library.

Check out the link mentioned in my last post . It has All the information you want.

Thanks

---

Rupesh Shukla

No, it does not have the information I want.

Answer 5

Click on

Classes Shared Between MFC and ATL

Thanks

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Rupesh Shukla

Answer 6

Click on

Classes Shared Between MFC and ATL

Thanks

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Rupesh Shukla

That does not answer my OP. Try reading it and you will understand it. Did I ask about classes shared by MFC and ATL ? No.

Answer 7

Click on

Classes Shared Between MFC and ATL

Thanks

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Rupesh Shukla

That does not answer my OP. Try reading it and you will understand it. Did I ask about classes shared by MFC and ATL ? No.

Had read your question .This is what i want to tell you

typedef CPathT<CString> CPath; if you  are using CPath you have to use atlpath.h inside your code . Second Shared classes means you can use those classes in MFC and ATL without adding any extra classes. You can't use CPath without atlpath.h. That's all i can explain you . And if any class is a ATL class you have to use ATL header file and if this is a MFC you have to add corresponding header file.Nothing else

Second thing you can provide ATL support to your MFC project by using header file only you don't have to use lib etc

Thanks

---

Rupesh Shukla

Answer 8

eldiener wrote:

>

>Recently I discovered the useful ATL class CPath. I used it in a MFC

>application. I am not linking either dynamically or statically to the

>ATL library. My application built with no errors.

>

>Evidently there is a large set of ATL template classes which can be

>used in an MFC application without needing the ATL library.

 

Very few ATL classes need any run-time support.  That's why I love them.

 

>Is there a list of these ATL classes anywhere ?

 

I have found ATL to be underdocumented and hence woefully underutilized. In

my view, the best place to find out about them is in the source code, in

your Visual Studio directory in VC\atlmfc\include\atl\atl*.h.

 

The CAtlFile and CRegKey classes are particularly useful, as are the

wrappers in atlsync.h.  And, of course, if you have to do anything at all

with COM, CComPtr and CComQIPtr are indispensible.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, VC++ MVP Providenza & Boekelheide, Inc.

Answer 9

Click on

Classes Shared Between MFC and ATL

Thanks

---

Rupesh Shukla

That does not answer my OP. Try reading it and you will understand it. Did I ask about classes shared by MFC and ATL ? No.

Had read your question .This is what i want to tell you

typedef CPathT<CString> CPath; if you  are using CPath you have to use atlpath.h inside your code . Second Shared classes means you can use those classes in MFC and ATL without adding any extra classes. You can't use CPath without atlpath.h. That's all i can explain you . And if any class is a ATL class you have to use ATL header file and if this is a MFC you have to add corresponding header file.Nothing else

Second thing you can provide ATL support to your MFC project by using header file only you don't have to use lib etc

Thanks

---

Rupesh Shukla

Unfortunately your information has nothing to do with my question. It would have been better just to not answer rather than provide information which has nothing to do with an OP.

Answer 10

eldiener wrote:

>

>Recently I discovered the useful ATL class CPath. I used it in a MFC

>application. I am not linking either dynamically or statically to the

>ATL library. My application built with no errors.

>

>Evidently there is a large set of ATL template classes which can be

>used in an MFC application without needing the ATL library.

 

Very few ATL classes need any run-time support.  That's why I love them.

 

>Is there a list of these ATL classes anywhere ?

 

I have found ATL to be underdocumented and hence woefully underutilized. In

my view, the best place to find out about them is in the source code, in

your Visual Studio directory in VC\atlmfc\include\atl\atl*.h.

 

The CAtlFile and CRegKey classes are particularly useful, as are the

wrappers in atlsync.h.  And, of course, if you have to do anything at all

with COM, CComPtr and CComQIPtr are indispensible.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, VC++ MVP Providenza & Boekelheide, Inc.

Thanks ! I just don't have the time to waste to read source code just to determine if use of an ATL template class requires linking with the ATL library. Easier is to just use the instantiated template and find out. No doubt it is foolish of me to expect Microsoft to document which ATL classes require linking to the ATL library and which do not.

I do agree with you that ATL has many useful template classes which can be used in code and which has little to do with ActiveX. That just shows the programming level of Microsoft's designers.

Answer 11

Unfortunately your information has nothing to do with my question. It would have been better just to not answer rather than provide information which has nothing to do with an OP.

You are right .i should not answer these type of question .When someone don't want to learn anything have no right to make him understand the fact.

Thanks

---

Rupesh Shukla

Answer 12

eldiener wrote:

>

>Thanks ! I just don't have the time to waste to read source code just

>to determine if use of an ATL template class requires linking with

>the ATL library.

 

I understand what you're trying to say, but in my opinion, you cannot avoid

the source code when you want to use template libraries.

 

>I do agree with you that ATL has many useful template classes which can

>be used in code and which has little to do with ActiveX. That just shows

>the programming level of Microsoft's designers.

 

No, that's not a fair assessment.  Microsoft periodically goes through

these "branding orgies", where everything that comes out in a given period

has some special brand.  In the mid-1990s, everything was Active.  ActiveX,

Active Template Library, ActiveMovie (which was eventually released as

DirectShow).  For a while, everything was Direct.  Then, everything was

.NET.  Then, everything was Live.

 

It's not easy to come up with a good name for a very general purpose

library.  Active Template Library is probably as good a name as any.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, VC++ MVP Providenza & Boekelheide, Inc.

Answer 13

eldiener wrote:

>

>Thanks ! I just don't have the time to waste to read source code just

>to determine if use of an ATL template class requires linking with

>the ATL library.

 

I understand what you're trying to say, but in my opinion, you cannot avoid

the source code when you want to use template libraries.

 

>I do agree with you that ATL has many useful template classes which can

>be used in code and which has little to do with ActiveX. That just shows

>the programming level of Microsoft's designers.

 

No, that's not a fair assessment.  Microsoft periodically goes through

these "branding orgies", where everything that comes out in a given period

has some special brand.  In the mid-1990s, everything was Active.  ActiveX,

Active Template Library, ActiveMovie (which was eventually released as

DirectShow).  For a while, everything was Direct.  Then, everything was

.NET.  Then, everything was Live.

 

It's not easy to come up with a good name for a very general purpose

library.  Active Template Library is probably as good a name as any.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, VC++ MVP Providenza & Boekelheide, Inc.

The C++ standard library consists largely of template classes. Do you look through the source code before you use any one class of the library ? I look at the documentation.

My remark about the programming level of Microsoft's designers referred to the fact that quite a number of template classes in the ATL have absolutely nothing to do with ActiveX, and therefore should have been put in a separate C++ library which could have been used by any C++ module. This is precisely what triggered my OP.