Hi everyone,
I tried to create and use a shared library in qt.I used the c++ library project to create this.

code used to create a shared library:

.pro file:

Qt Code: 
  1. QT       -= gui
  2.  
  3. TARGET = myLIB
  4. TEMPLATE = lib
  5.  
  6. DEFINES += MYLIB_LIBRARY
  7.  
  8. SOURCES += mylib.cpp
  9.  
  10. HEADERS += mylib.h\
  11.         myLIB_global.h
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.h file

Qt Code: 
  1. class MYLIBSHARED_EXPORT MyLIB {
  2. public:
  3.     MyLIB();
  4.     int add(int x,int y);
  5. };
  6.  
  7. extern "C"
  8. {
  9.     int sub(int x,int y);
  10. }
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.cpp file :

Qt Code: 
  1. MyLIB::MyLIB()
  2. {
  3. }
  4. int MyLIB::add(int x, int y)
  5. {
  6.     return x+y;
  7. }
  8.  
  9. int sub(int x, int y)
  10. {
  11.     return x-y;
  12. }
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In my test application i am able to use sub function.code is
Qt Code: 
  1. typedef int (*pf)(int,int);
  2.     pf fun=(pf)QLibrary::resolve("./libmyLIB.so","sub");
  3.     int x=fun(20,10);
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It is working.
But when i am trying to use isLoaded function it is returning false.
Qt Code: 
  1. QLibrary myLib("./libmyLIB.so");
  2. ok=myLib.isLoaded();
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My problem is i want to use the function directly without using QLibrary.(only adding in .pro file)
How i will use add function in my application ?