RPC Example from MSDN

Hi Fellows.

I got the RPC example code from MSDN. I am trying to compile and execute it using visual studio but it is giving me errors. But when i compile it using the makefile and nmake command on commandline it works fine.

I am creating the .h and _s.c and _c.c using the midl compiler and then i add these files in my server and client application but the both are giving me the error.

The client application error is
fatal error C1189: #error : You need a Windows 2000 or later to run this stub because it uses these features:

The Server application errors are
Hellos.obj : error LNK2001: unresolved external symbol _hello_ServerIfHandle
libcmt.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16
Debug/Server.exe : fatal error LNK1120: 2 unresolved externals

Thanks

From MSDN on the C1189 error.....

Quote:

---

You may also see this error if you build an ATL project with the /robust MIDL compiler option. /robust is only for use when building for a Windows 2000 or later machine. So, either remove /robust or change this line in the dlldatax.c file:

#define _WIN32_WINNT 0x0400 //for WinNT 4.0 or Win95 with DCOM
to

#define _WIN32_WINNT 0x0500 //for WinNT 4.0 or Win95 with DCOM

---

For the LNK2001 error....

This may help for the _WinMain part of the error

Quote:

---

When building a Release version of an ATL project, indicates that CRT startup code is required. To fix, do one of the following,
Remove _ATL_MIN_CRT from the list of preprocessor defines to allow CRT startup code to be included. See General Configuration Settings Property Page for more information.

---

For the _hello_ServerIfHandle part of the error.....
Make sure sure the .h and .c/.cpp file that contains this function/method is part of the VC++ project so the linker can find the appropriate object files.

HTH

f1shrman
Thank you very much for the reply.

You pointed very nicely but still i am unable to solve the problem.

I looked for the
#define _WIN32_WINNT 0x0400 //for WinNT 4.0 or Win95 with DCOM
in dlldatax.c
but unfortunately there is no such file in my project.

As there is the concern of _hello_ServerIfHandle i added the idl file and also the .h generated file from MIDL compiler but still the problem remains there.

As i am trying to compile and run the MSDN project in visual studio. I generated the _c.c _s.c and .h using MIDL compiler on command line and then i added these files in the visualstudio project.

Can you please do it for me. I am attaching the project files with the post.

I dug up the sample in the sdk and from the readme - ran nmake - and everything compiled correctly - here are the results. You might try running nmake cleanall then recompiling

f1shrman
Thank you for spending time for me.

Dear i can compile ane execute the program using nmake on command line.

But i want to inject that code in my another application. So when i try this program in MS VisualStudio 6.0 I face the last mentioned problems. Can you compile and execute this project in the MS VisualStudio 6 ?

Waiting for your reply

Thanks alot

I spent some time looking at this today and did not come up with a solution. I tried various MIDL commandline options - had some luck with /app_config Hello.Acf to get the interfaces set - this got rid of the _hello_ServerIfHandle related error - you will have to change the function name to what ever the compiler creates - i.e. _hello_my_p_handle.

I was not able to get rid of the C1189 error, but I did a lot of looking at things........

From the Win32 API:

Quote:

---

BOOL DeleteFile()
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero.

---

So based on this I take that BOOL TRUE is non zero and BOOL FALSE is zero

From MSDN:

Quote:

---

When a postfix or prefix ++ operator is applied to a variable of type bool, the variable is set to true. The postfix or prefix -- operator cannot be applied to a variable of this type.

The bool type participates in integral promotions. An r-value of type bool can be converted to an r-value of type int, with false becoming zero and true becoming one. As a distinct type, bool participates in overload resolution.

---

So based on this I take that bool true can be a non zero value and bool false can be zero. Even though you should probably not use an integer to check for bool true or false - it can be done.

In RpcNdr.h

Code:

---

#if (0x500 <= _WIN32_WINNT)
#define TARGET_IS_NT50_OR_LATER                  1
#else
#define TARGET_IS_NT50_OR_LATER                  0
#endif

---

On an XP and Win2k box, this fails with fatal error C1189: #error : You need a Windows 2000 or later to run this stub because it uses these features:

If you change RpcNdr.h to match the BOOL or bool definition above.

Code:

---

#if (0x500 <= _WIN32_WINNT)
#define TARGET_IS_NT50_OR_LATER                  0 // 1
#else
#define TARGET_IS_NT50_OR_LATER                  1 // 0
#endif

---

On the same XP and Win2k box, the C1189 error goes away.

The check in the _c file is

Code:

---

#if !(TARGET_IS_NT50_OR_LATER)

---

What am I missing?

f1shrman
Thank you very much
that you spent time over it.
I am trying my best to solve this issue. But if in the mean time you can get some solution please post it.
Once again thankyou very much

I am able to comiple and execute the above project in visualstudio 6.

Here are the steps
1, Put the extension .mak to the makefile (makefile -> makefile.mak)
2, Open it in the visualstudio (Create a project)
3, Add the .h and .c/.cpp files
4, Compile / Execute

If you are still having troubles, try this; Put back everything as was and remove the rpcndr.lib from the link inputs in the p/s make file(*.mak,*.mk). This file(rpcndr.lib) is vestigal and is not needed any more to link with the SDK you probably have. Cheers.

Please note that this thread has been dead since 2004... ;)

gcam1964,

Thank you dear but some one could not wait that much for the issues.
Time is money.

Regards,