Qt-interest Archive, April 2007
DLL exporting functions, variables, class
Message 1 in thread
Hi all,
Can anyone help me with a small sample code tht how can I export a class
fm a dll in Qt.
I want to make a class in a dll n want to inherit fm this class in my
application.
How this is done in Qt.
Thanks
Shuchi
Message 2 in thread
There is nothing Qt specific to this - it's all Windows specific.
#define a macro that expands to __declspec(dllexport) when you build your
DLL, and to __declspec(dllimport) when you use your DLL (and to nothing if
you are not on Windows).
Set a define in your DLL project that you can test using the DEFINES
variable in your .pro file.
#if defined(Q_WS_WIN)
# if defined(BUILD_MYDLL)
# define MYDLL_EXPORT __declspec(dllexport)
# else
# define MYDLL_EXPORT __declspec(dllimport)
# endif
#else
# define MYDLL_EXPORT
#endif
Then use the macro in your class declaration.
See MSDN for details.
Volker
"shuchi, Agrawal (IE10)" <shuchi.agrawal@xxxxxxxxxxxxx> wrote in message
news:EB493C98A0338748AA3D997E071B05741740A5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi all,
Can anyone help me with a small sample code tht how can I export a class
fm a dll in Qt.
I want to make a class in a dll n want to inherit fm this class in my
application.
How this is done in Qt.
Thanks
Shuchi
--
[ signature omitted ]
Message 3 in thread
On 2007-04-24 08:44:08 -0400, "shuchi, Agrawal (IE10)"
<shuchi.agrawal@xxxxxxxxxxxxx> said:
>
>
> Hi all,
>
> Can anyone help me with a small sample code tht how can I export a class
> fm a dll in Qt.
>
> I want to make a class in a dll n want to inherit fm this class in my
> application.
>
> How this is done in Qt.
>
> Thanks
>
> Shuchi
>
>
>
This link helped immensely when I ported my c++ code to windows from unix:
http://msdn2.microsoft.com/en-us/library/ms235636(VS.80).aspx
Mike
--
[ signature omitted ]
