How can I solve this?

[srohit24]

I have a GUI application which has a push button and text area.

what i want the app to do is, when i press a push button, it should call a function that i have written and display its return value in the text area.

this is the function

using namespace std;
 
char DLLfunction (){
         QLibrary myLib("dllprog");
         typedef char* (*MyPrototype)();
         MyPrototype myFunction =
         (MyPrototype) QLibrary::resolve("dllprog", "TestDll");
 
         char *b = myFunction();
         return b;
}

using namespace std;

char DLLfunction (){
         QLibrary myLib("dllprog");
         typedef char* (*MyPrototype)();
         MyPrototype myFunction =
         (MyPrototype) QLibrary::resolve("dllprog", "TestDll");

         char *b = myFunction();
         return b;
}

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how can get the return value in the GUI and in the text area.

I am using QtCreator.