VS2005 compile TryEnterCriticalSection identifier not found

[kevin00000000ex]

I develop an app using POCO with vs2005 and meet two problems.
The first sample as follows:

Code: Select all

#include <windows.h>
#include "Poco/Path.h"
#include "Poco/File.h"
#include "Poco/Exception.h"
#include "Poco/Util/IniFileConfiguration.h"

int WinMain(...)
{
    //some code
    CreateProcess(...);
   //some code
}


when I compile the cpp, I meet a error "error C3861: 'TryEnterCriticalSection': identifier not found".But if I include the header files of POCO before the windows.h like

Code: Select all

#include "Poco/Path.h"
#include "Poco/File.h"
#include "Poco/Exception.h"
#include "Poco/Util/IniFileConfiguration.h"
#include <windows.h>


then the 'TryEnterCriticalSection' can be found. Why? I have not found any introduction about the order of including header file.


The second sample as follows:
The code is identical with the first sample except that the POCO header file are included before windows.h and I meet anther problem when compile it.
"error C3861: 'CreateProcess' : identifier not found" (But the 'CreateProcessA' is OK.)
And if I delete the '#include "Poco/Util/IniFileConfiguration.h"', compile successfully too.
So why the compiler can not find 'CreateProcess' if I include "Poco/Util/IniFileConfiguration.h" regardless of after or before window.h?

[alex]

then the 'TryEnterCriticalSection' can be found. Why? I have not found any introduction about the order of including header file.
...
So why the compiler can not find 'CreateProcess' if I include "Poco/Util/IniFileConfiguration.h" regardless of after or before window.h?

Has to do with _WIN32_WINNT definition. Make sure it is defined early and properly.

[kevin00000000ex]

then the 'TryEnterCriticalSection' can be found. Why? I have not found any introduction about the order of including header file.
...
So why the compiler can not find 'CreateProcess' if I include "Poco/Util/IniFileConfiguration.h" regardless of after or before window.h?

Has to do with _WIN32_WINNT definition. Make sure it is defined early and properly.

Thanks for your attention Alex.
I realize it too. So I import the header files of POCO before 'windows.h', and then the first problem is solved.
But the second problem can not be solved no matter what position I import the "Poco/Util/IniFileConfiguration.h".
And more strange is the "CreateProcessA" is OK. What should I do?

[kevin00000000ex]

I know the reason of the second problem,because of "Poco/UnWindows.h".There are some #undef operation including 'CreateProcess'

By a way, how can I finish the topic?

[alex]

And more strange is the "CreateProcessA" is OK. What should I do?

Call CreateProcessA. If you need to handle both narrow and wide, ifdef it. That's what we do - disarm the macros and deal with that ourselves. See this for an example.