[SOLVED]QLibrary - load and using DLL

Peppy

Well, I have Project.Configuration.dll, which exports function:
@Q_DECL_EXPORT Configurator* getConfiguration(void);@

I have got a lot of problems:

In debug directory is Project.Configuration.dll, but in Project.exe QLibrary can't find "Project.Configuration" (with omitted suffix)
I can't get that exported function because there are errors with this code:
@
typedef Configurator* (ConfigurationPrototype)(void);
Configurator* Config = 0;
QLibrary *ConfigLib = new QLibrary(QString("Project.Configuration.dll"));
ConfigurationPrototype GetConfigurator = (ConfigurationPrototype)ConfigLib->resolve("getConfigurator"); // this makes errors
@

error: C2072: 'GetConfigurator' : initialization of a function

There are no conversions to function types, although there are conversions to references or pointers to functions

Could you tell me, where is the problem?

cincirin

You should write typedef Configurator* (* ConfigurationPrototype)(void)

Peppy

And the first problem?

Well, I rewrote it. And hopefully it works! :) :D

cincirin

Try to delete the Makefile and compile in Release mode ...
OK, I don't see your edit post :-)

Peppy

well, but how to export function?
@Q_DECL_EXPORT void function(void);@
Or:
@void Q_DECL_EXPORT function(void);@

?

loladiro

AFAIK,
@void Q_DECL_EXPORT function(void);@
Edit, also, if you want to use it you have to have something like this
@
#if defined(MY_LIBRARY)

#else

#endif
@

Peppy

No, that defintion doesn't work. I can't find exported function from library (through QLibrary::resolve)

cincirin

I use only the other :-) : @Q_DECL_EXPORT "function prototype"@ Also make sure your function is in @extern "C"@ body

Peppy

Yes, "extern 'C'" working. :) :D Thank you very much.