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Include guard not working

开发者 https://www.devze.com 2023-03-22 20:08 出处:网络
I have as follows in my trackerFrame.h file. It is included by trackerFrame.cpp and main.cpp and for whatever reason I am getting multiple definition problems from it when I try to compile all pertai

I have as follows in my trackerFrame.h file.

It is included by trackerFrame.cpp and main.cpp and for whatever reason I am getting multiple definition problems from it when I try to compile all pertaining to the wxWidgets event table macros.

#ifndef TRACKER_H
#define TRACKER_H

#include <wx/wxprec.h>
#ifndef WX_PRECOMP
#  include "wx/wx.h"
#endif


#include <wx/frame.h>
#include <wx/string.h>
#include <wx/menu.h>
#include <iostream>

class mainFrame : public wxFrame {
public:
    mainFrame(wxString title);
    DECLARE_EVENT_TABLE()
private:
    void closeProgram(wxCommandEvent & event);
};


BEGIN_EVENT_TABLE(mainFrame, wxFrame)
    EVT_MENU(wxID_EXIT, mainFrame::closeProgram)
END_EVENT_T开发者_如何学运维ABLE()

#endif

I am 99.9% sure that I am doing the include guards properly and I just can't figure out what is going on.


Your include guards are correct. The problem is most likely here:

BEGIN_EVENT_TABLE(mainFrame, wxFrame)    
    EVT_MENU(wxID_EXIT, mainFrame::closeProgram)
END_EVENT_TABLE()

According to the wxWidgets wiki on event tables, the event table needs to be defined into a .cpp file. So you would have a tracker.cpp file that includes the tracker.h file and put the BEGIN_EVENT_TABLE(mainFrame, wxFrame) ... map into the tracker.cpp file.

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