Hi, I am confused by this problem. When I run my application, a Runtime Error occurs. The following is my main.cpp
Qt Code: 
  1. #include "userDB.h"
  2. #include "manager.h"
  3. #include "user.h"
  4. #include <QApplication>
  5. #include <QTextCodec>
  6. #include <QPixmap>
  7.  
  8. UserDB users;  //所有已经注册的用户
  9. User currentUser;  //当前用户
  10. QPixmap noDishImage;  //comment this line, it works fine
  11.  
  12. int main(int argc, char *argv[])
  13. {
  14.     QApplication a(argc, argv);
  15.     QTextCodec::setCodecForTr(QTextCodec::codecForName("GB2312"));
  16.     Manager w;
  17.     w.show();
  18.     return a.exec();
  19. }
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User and UserDB are two classes I write.
Why declaring global variables of my own classes the application works fine, while declaring a blobal variable of the QPixmap leads the application to crash??
Any ideas appreciated!!