Hi,
I know that this section is going to be closed but the question is pretty basic and this is more or less the first time I’m coding applications in C++ so I thought it’s better I ask here.
I’m running Haiku under VMWare and I tried to compile the first example from “Programming the Be Operating System”:
#include <Window.h>
#include <Application.h>
class SimpleWindow: public BWindow {
public:
SimpleWindow( BRect frame );
virtual bool QuitRequested();
};
SimpleWindow::SimpleWindow( BRect frame )
: BWindow( frame, “A Simple Window”, B_TITLED_WINDOW, B_NOT_RESIZABLE ) {
}
bool SimpleWindow::QuitRequested() {
be_app->PostMessage( B_QUIT_REQUESTED );
return true;
}
class SimpleApplication: public BApplication {
public:
SimpleApplication();
};
SimpleApplication::SimpleApplication()
: BApplication( “application/x-vnd.dps-simpleapp” ) {
SimpleWindow *aWindow;
BRect aRect;
aRect.Set( 20, 20, 200, 60 );
aWindow = new SimpleWindow( aRect );
aWindow->Show();
}
main() {
SimpleApplication myApplication;
myApplication.Run();
return 0;
}
When I compiled it under g++, it showed error messages about undefined references. Can anyone tell me what went wrong? Am I to add compiler flags or so?
EDIT: I copy-pasted the code wrongly so fixed it…
