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50 
51 //! [0]
52 QLibrary myLib("mylib");
53 typedef void (*MyPrototype)();
54 MyPrototype myFunction = (MyPrototype) myLib.resolve("mysymbol");
55 if (myFunction)
56     myFunction();
57 //! [0]
58 
59 
60 //! [1]
61 typedef void (*MyPrototype)();
62 MyPrototype myFunction =
63         (MyPrototype) QLibrary::resolve("mylib", "mysymbol");
64 if (myFunction)
65     myFunction();
66 //! [1]
67 
68 
69 //! [2]
70 typedef int (*AvgFunction)(int, int);
71 
72 AvgFunction avg = (AvgFunction) library->resolve("avg");
73 if (avg)
74     return avg(5, 8);
75 else
76     return -1;
77 //! [2]
78 
79 
80 //! [3]
avg(int a,int b)81 extern "C" MY_EXPORT int avg(int a, int b)
82 {
83     return (a + b) / 2;
84 }
85 //! [3]
86 
87 
88 //! [4]
89 #ifdef Q_OS_WIN
90 #define MY_EXPORT __declspec(dllexport)
91 #else
92 #define MY_EXPORT
93 #endif
94 //! [4]
95