Ok sorry, ill write here all the code:

main.cpp
Qt Code: 
  1. #include <QtCore/QCoreApplication>
  2. #include "imagecomposer.h"
  3. int main(int argc, char *argv[])
  4. {
  5.     QCoreApplication a(argc, argv);
  6.     Imagecomposer compo;
  7.     return a.exec();
  8. }
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Imagecomposer.h
Qt Code: 
  1. #ifndef IMAGECOMPOSER_H
  2. #define IMAGECOMPOSER_H
  3. #define IMAGECOMPOSER_EXPORTS
  4. #include <CyDeviceFinder.h>
  5. class Imagecomposer
  6. {
  7. public:
  8.     Imagecomposer();
  9. };
  10.  
  11. #endif // IMAGECOMPOSER_H
  12.  
  13.  
  14.  
  15. #include "imagecomposer.h"
  16.  
  17. Imagecomposer::Imagecomposer()
  18. {
  19. }
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Imagecomposer.cpp
Qt Code: 
  1. #include "imagecomposer.h"
  2. Imagecomposer::Imagecomposer()
  3. {
  4. }
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ImageJAI.pro
Qt Code: 
  1. # -------------------------------------------------
  2. # Project created by QtCreator 2010-05-27T11:47:58
  3. # -------------------------------------------------
  4. TARGET = ImageJAI
  5. CONFIG += console
  6. CONFIG -= app_bundle
  7. TEMPLATE = app
  8. SOURCES += main.cpp \
  9.     imagecomposer.cpp
  10. LIBS += -LC:\qextserialport\build \
  11.     -lqextserialport
  12. INCLUDEPATH += "C:\Archivos de programa\JAI A-S\Cam2Net\Includes"
  13. HEADERS += imagecomposer.h
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EDIT: SORRY i wrote while you answered!!!!