[Qt-interest] QTCreator + Addign static Windows Libraries

[Benjamin Sonnemann]

You are trying to mix mingw and Visual C Libs? AFAIK this isnt possible,
without running some tools.
You should try reading this:
http://msdn.microsoft.com/en-us/library/3y1sfaz2(VS.80).aspx
http://mingw.org/wiki/MSVC_and_MinGW_DLLs
and finally
http://www.adp-gmbh.ch/win/misc/mingw/dll.html

Benjamin Sonnemann


On Thu, Apr 9, 2009 at 1:10 PM, Parameshwari <paramr at tataelxsi.co.in> wrote:

>  Hi ,
>             Thanks for your inputs.
>              Let me explain clearly , so that i can get the clarification
> about this issue.
>
>
> For Creating External Api:
>                                          1) I have Visual Studio 6.0  and
> created a static library called "Test.lib" using "Windows Static Library"
> with precompiled header .
> My code snipet for the above is :
>
> *stdafx.cpp contains :*
> -------------------------------
>
> // stdafx.cpp : source file that includes just the standard includes
> // Test.pch will be the pre-compiled header
> // stdafx.obj will contain the pre-compiled type information
>
> #include "stdafx.h"
> #include<iostream.h>
> void Test()
> {
>
> cout<<"Test Api";
> }
>
> *stdafx.h contains :*
> ---------------------------
>
> // stdafx.h : include file for standard system include files,
> //  or project specific include files that are used frequently, but
> //      are changed infrequently
> //
>
> #if !defined(AFX_STDAFX_H__36299355_4C9F_49A6_9D6E_9E8046E74AC9__INCLUDED_)
> #define AFX_STDAFX_H__36299355_4C9F_49A6_9D6E_9E8046E74AC9__INCLUDED_
>
> #if _MSC_VER > 1000
> #pragma once
> #endif // _MSC_VER > 1000
>
> #define WIN32_LEAN_AND_MEAN  // Exclude rarely-used stuff from Windows
> headers
>
>
> // TODO: reference additional headers your program requires here
>
> //{{AFX_INSERT_LOCATION}}
> // Microsoft Visual C++ will insert additional declarations immediately
> before the previous line.
>
> #endif //
> !defined(AFX_STDAFX_H__36299355_4C9F_49A6_9D6E_9E8046E74AC9__INCLUDED_)
> here, stdafx created deafult code and after building of the same , go the
> "Test.lib" code.
>
> -----------------
>
> Now In Qt ,
>
> i added in qt.pro file :
>
> I copied the "Test.lib" to Qt directoy itself.
> my .pro file contains the below :
>
> TARGET = try
>
> TEMPLATE = app
>
> LIBS += -l Test.lib
>
> # CONFIG += qtestlib
>
> SOURCES += main.cpp \
>
> myframe.cpp
>
> HEADERS += myframe.h
>
> FORMS += myframe.ui
>
> RESOURCES += pics.qrc
>
>
>
>
>
> In my Qt "main.cpp"  file :
>
>
>
>
>
> #include <QtGui/QApplication>
>
> #include "myframe.h"
>
> #ifdef BUILD_LIB
>
> #define DLLAPI __declspec(dllexport)
>
> #else
>
> #define DLLAPI __declspec(dllimport)
>
> #endif
>
> DLLAPI void Test();
>
>  int main(int argc, char *argv[])
>
> {
>
> QApplication a(argc, argv);
>
> myFrame w;
>
> //yourFrame w1;
>
> w.show();
>
> Test();
>
> //w1.show();
>
> return a.exec();
>
> }
>
>
>
>
>
> but , right now , i am getting the below error. i just want this program to
> be compiled and run succesffully :(.......... badly...
>
>
>
> Right now , we are getting
>
> mingw32-make: Leaving directory `C:/Qt/2009.01/bin/try'
>
> c:\Qt\2009.01\mingw\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\mingw32\bin\ld.exe:
> cannot find -lTest.lib
>
> collect2: ld returned 1 exit status
>
> mingw32-make[1]: *** [debug\try.exe] Error 1
>
> mingw32-make: *** [debug] Error 2
>
> Exited with code 2.
>
> Error while building project try
>
> When executing build step 'Make'
>
>
>
> thanks in advance ..............
>
>
>
>
>
> Regards
>
> Param
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>  -----Original Message-----
> *From:* Benjamin Sonnemann [mailto:b.sonnemann at gmail.com]
> *Sent:* Thursday, April 09, 2009 3:59 PM
> *To:* paramr at tataelxsi.co.in
> *Cc:* Denton Vis; qt-interest at trolltech.com
> *Subject:* Re: [Qt-interest] QTCreator + Addign static Windows Libraries
>
> Did you declare the protoype for building with
> __declspec(dllexport) ?
> like this:
>
> test.h
>
> #ifdef BUILD_LIB
> #define DLLAPI __declspec(dllexport)
> #else
> #define DLLAPI __declspec(dllimport)
> #endif
>
> DLLAPI void Test();
>
> And is both compiled as C++?
>
> Benjamin Sonnemann
>
>
> On Thu, Apr 9, 2009 at 12:13 PM, Parameshwari <paramr at tataelxsi.co.in>wrote:
>
>>
>> Hi Denton,
>>
>>        I have included the header file and in the .pro file i have
>> included
>> the .lib file like the below
>>                                LIBS+= -lTest.lib in the QT project
>>
>> And some where in the forum i found that we have to add
>> __declspec(dllimport) void Test(); outside of main. So I added that also
>> And
>> the error it is shoeing is below.
>> error:" undefined reference to `_imp___Z9Testv'"
>>
>> Regards
>>  Param
>>
>>
>> -----Original Message-----
>> From: qt-interest-bounces at trolltech.com
>> [mailto:qt-interest-bounces at trolltech.com]On Behalf Of Denton Vis
>> Sent: Thursday, April 09, 2009 2:55 PM
>> To: qt-interest at trolltech.com
>> Subject: Re: [Qt-interest] QTCreator + Addign static Windows Libraries
>>
>>
>> You have not told us what kind of error message you are getting. Without
>> that, we cannot help you much.
>>
>> By the way, have you included the header which contains the definitions
>> for
>> the functions in the library, e.g. test.h?
>>
>> "Parameshwari" <paramr at tataelxsi.co.in> wrote in message
>> news:019201c9b8f2$af348160$8519320a at telxsi.com...
>> > Hi All,
>> >          I wanted to add the static Library to the Qt creator.
>> > For example:
>> >
>> > I have static Library named as "Test.lib" and it has a function
>> definition
>> > of "Test()".
>> > Now , i want to invoke this function in Qt. how can i do this?.Please
>> help
>> > me out!!!!
>> >
>> > Thanks in advance.
>> >
>> >
>> > Regards
>> > param
>> >
>> >
>> >
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