Error with using wxWidgets alongside SFML - c++

Question

This error is with wxWidgets 3.1.5, and SFML 2.5.1
I have the following code:
(main.cpp) :-
#include <SFML/Graphics.hpp>
#include <wx/wx.h>
#include "wxSfmlCanvas.h"
#include "main.h"
TestFrame::TestFrame() :
wxFrame(NULL, wxID_ANY, "SFML 2.5 w/ wxWidgets 3.1", wxDefaultPosition, wxSize(650, 490))
{
mCanvas = new TestSfmlCanvas(this, wxID_ANY, wxPoint(5, 25), wxSize(640, 480));
// Also add a button.
wxButton *button = new wxButton(
this,
wxID_ANY,
wxT("Toggle Size"),
wxPoint(5, 5)
);
button->Bind(wxEVT_BUTTON, [&](wxCommandEvent& arg) -> void {
mCanvas->toggleSize();
});
wxBoxSizer* mainSizer = new wxBoxSizer( wxVERTICAL );
mainSizer->Add(mCanvas, 6, wxALIGN_TOP | wxEXPAND);
mainSizer->Add(button, 0, wxALIGN_RIGHT | wxALIGN_BOTTOM);
SetSizerAndFit(mainSizer);
}
TestSfmlCanvas::TestSfmlCanvas(
wxWindow* Parent,
wxWindowID Id,
wxPoint& Position,
wxSize& Size,
long Style
) : wxSfmlCanvas(Parent, Id, Position, Size, Style),
mLarge(false)
{
// Load a texture and create a sprite.
mTexture.loadFromFile("data/ball.png");
mSprite = std::make_unique<sf::Sprite>(mTexture);
}
void
TestSfmlCanvas::OnUpdate()
{
clear(sf::Color(64, 196, 196));
draw(*mSprite);
}
void
TestSfmlCanvas::toggleSize()
{
if (mLarge) {
mSprite->setScale(sf::Vector2f(1.2f, 1.2f));
}
else {
mSprite->setScale(sf::Vector2f(0.5f, 0.5f));
}
mLarge = !mLarge;
}
IMPLEMENT_APP(TestApplication);
(and main.h) :-
#pragma once
#include <memory>
#include <SFML/Graphics.hpp>
#include <wx/wx.h>
#include <string>
#include "wxSfmlCanvas.h"
// Our overridden class that does some SFML drawing.
class TestSfmlCanvas : public wxSfmlCanvas
{
public:
TestSfmlCanvas(
wxWindow* Parent,
wxWindowID Id,
wxPoint& Position,
wxSize& Size,
long Style = 0
);
void toggleSize();
protected:
void OnUpdate() override;
private:
sf::Texture mTexture;
std::unique_ptr<sf::Sprite> mSprite;
bool mLarge;
};
// wx Frame to contain the main canvas control. Can have extra controls added to it as desired.
class TestFrame : public wxFrame
{
public :
TestFrame();
protected:
TestSfmlCanvas* mCanvas;
};
// Main wx Application instance.
class TestApplication : public wxApp
{
private :
virtual bool OnInit()
{
// Create the main window
TestFrame* MainFrame = new TestFrame;
MainFrame->Show();
return true;
}
};
(wxSFMLCanvas.h) :-
#pragma once
#include <SFML/Graphics.hpp>
#include <wx/wx.h>
#include <string>
class wxSfmlCanvas : public wxControl, public sf::RenderWindow
{
public:
wxSfmlCanvas(wxWindow* Parent = nullptr,
wxWindowID Id = -1,
//const wxPoint& Position = wxDefaultPosition,
const wxSize& Size = wxDefaultSize,
long Style = 0);
virtual ~wxSfmlCanvas();
protected:
virtual void OnUpdate();
void OnIdle(wxIdleEvent&);
void OnPaint(wxPaintEvent&);
void OnEraseBackground(wxEraseEvent&);
void OnSize(wxSizeEvent&);
DECLARE_EVENT_TABLE()
};
(wxSFMLCanvas.cpp) :-
#include "wxSfmlCanvas.h"
#include <wx/wx.h>
#include <string>
BEGIN_EVENT_TABLE(wxSfmlCanvas, wxControl)
EVT_PAINT(wxSfmlCanvas::OnPaint)
EVT_IDLE(wxSfmlCanvas::OnIdle)
EVT_ERASE_BACKGROUND(wxSfmlCanvas::OnEraseBackground)
EVT_SIZE(wxSfmlCanvas::OnSize)
END_EVENT_TABLE()
#ifdef __WXGTK__
#include <string>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include <wx/gtk/win_gtk.h>
#endif
wxSfmlCanvas::wxSfmlCanvas(wxWindow* Parent,
wxWindowID Id,
const wxPoint& Position,
const wxSize& Size,
long Style) :
wxControl(Parent, Id, Position, Size, Style)
{
#ifdef __WXGTK__
#else
sf::RenderWindow::create(GetHandle());
#endif
}
void wxSfmlCanvas::OnIdle(wxIdleEvent&)
{
// Send a paint message when the control is idle, to ensure maximum framerate
Refresh();
}
wxSfmlCanvas::~wxSfmlCanvas()
{
}
void wxSfmlCanvas::OnUpdate()
{
}
void wxSfmlCanvas::OnEraseBackground(wxEraseEvent&)
{
}
void wxSfmlCanvas::OnSize(wxSizeEvent& args)
{
// Set the size of the sfml rendering window
setSize(sf::Vector2u(args.GetSize().x, args.GetSize().y));
// Also adjust the viewport so that a pixel stays 1-to-1.
setView(sf::View(sf::FloatRect(0, 0, args.GetSize().x, args.GetSize().y)));
}
void wxSfmlCanvas::OnPaint(wxPaintEvent&)
{
// Prepare the control to be repainted
wxPaintDC Dc(this);
// Let the derived class do its specific stuff
OnUpdate();
// Display on screen
display();
}
With this code, I get the following compile errors:
Severity Code Description Project File Line Suppression State Error C4996 '_wgetenv': This function or variable may be unsafe. Consider using _wdupenv_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. ae D:\wxwidg\include\wx\wxcrt.h 1050
And 100 similar others.
Why? what did I do wrong for this?
wxWidgets is properly built, SFML and wx work fine on their own, but when combined, this error takes place for some reason.

Answer 1

The messages you show are not errors at all, they are static analyser warnings and can be safely ignored, the "unsafe" functions are not used in unsafe way inside wxWidgets.