Shared Library

Shalini

Hi ..
I want to create a dll file and use the same dll in another Qt project ..
Using Shared Library I have created dll .In another Qt Project I have included the Dll file . Dll path is specified in pro file ... I have included Dll file Debug folder ..When i debug the project I received warnings

redeclared without dllimport attribute: previous dllimport ignored [-Wattributes]****

kindly explain me reason for the issues ...
Thanks In Advance ....

SeeLook

Did You add library import/export macros?

Create a file, i.e.
mylibimport.h

#include <QtCore/QtGlobal>

#if defined(MY_LIBRARY)
#  define MYLIBRARY_EXPORT Q_DECL_EXPORT
#else
#  define MYLIBRARY_EXPORT Q_DECL_IMPORT
#endif

add definition to pro
DEFINES += MY_LIBRARY

Then add MYLIBRARY_EXPORT before every class or function visible outside:
i.e:


#include <mylibimport.h>
class  MYLIBRARY_EXPORT someClass
{
  //....
};

 MYLIBRARY_EXPORT int someFunction() {
}