Hey all,

I'm having problems trying to integrate an existing program with a Qt front end. The front end is pretty simple and built in Qt Creator. When I try to set up components of my existing program (by creating objects and initializing them -- the program is just a collection of classes), the GUI never launches and the program doesn't initialize all of its components correctly. It stops and 'blocks' somewhere in the code, seemingly for no reason. I should note that the code works fine without any Qt stuff in it. Conversely the GUI works fine if I don't try to initialize my program.

I'm initializing my program through member functions of the main class of my Qt Project (I've called it FrontEnd):

Qt Code: 
  1. #include <QtGui/QApplication>
  2. #include "frontend.h"
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6.     QApplication a(argc, argv);
  7.  
  8.     FrontEnd rcnsWindow;
  9.     rcnsWindow.SysInitialize();	// hangs
  10.  
  11.     rcnsWindow.show();
  12.  
  13.     return a.exec();
  14. }
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Why could adding the Qt libraries and code stop my original program from working? I've made sure to copy over any compiler flags I needed and everything seems to compile fine.

I realize this is a general question, but was hoping that there is something blatant I'm missing. The program is fairly straightforward and basically does some I/O with serial ports.

Regards,

-KF