SFML Buttons -Question-

[CosminNTG]

I've just learned the basics of SFML library (how to use it, in general way).
I saw the samples on the package of the library (those demonstation-programs). The thing is that I want to put a button on a window without using Windows API. I saw the code of that sample: This is it:

////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics.hpp>
#include <cmath>

HWND Button;


////////////////////////////////////////////////////////////
/// Function called whenever one of our windows receives a message
///
////////////////////////////////////////////////////////////
LRESULT CALLBACK OnEvent(HWND Handle, UINT Message, WPARAM WParam, LPARAM LParam)
{
    switch (Message)
    {
        // Quit when we close the main window
        case WM_CLOSE :
        {
            PostQuitMessage(0);
            return 0;
        }

        // Quit when we click the "quit" button
        case WM_COMMAND :
        {
            if (reinterpret_cast<HWND>(LParam) == Button)
            {
                PostQuitMessage(0);
                return 0;
            }
        }
    }

    return DefWindowProc(Handle, Message, WParam, LParam);
}


////////////////////////////////////////////////////////////
/// Entry point of application
///
/// \param Instance : Instance of the application
///
/// \return Error code
///
////////////////////////////////////////////////////////////
INT WINAPI WinMain(HINSTANCE Instance, HINSTANCE, LPSTR, INT)
{
    // Define a class for our main window
    WNDCLASS WindowClass;
    WindowClass.style         = 0;
    WindowClass.lpfnWndProc   = &OnEvent;
    WindowClass.cbClsExtra    = 0;
    WindowClass.cbWndExtra    = 0;
    WindowClass.hInstance     = Instance;
    WindowClass.hIcon         = NULL;
    WindowClass.hCursor       = 0;
    WindowClass.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_BACKGROUND);
    WindowClass.lpszMenuName  = NULL;
    WindowClass.lpszClassName = TEXT("SFML App");
    RegisterClass(&WindowClass);

    // Let's create the main window
    HWND Window = CreateWindow(TEXT("SFML App"), TEXT("SFML Win32"), WS_SYSMENU | WS_VISIBLE, 200, 200, 660, 520, NULL, NULL, Instance, NULL);

    // Add a button for exiting
    Button = CreateWindow(TEXT("BUTTON"), TEXT("Quit"), WS_CHILD | WS_VISIBLE, 560, 440, 80, 40, Window, NULL, Instance, NULL);

    // Let's create two SFML views
    HWND View1 = CreateWindow(TEXT("STATIC"), NULL, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS, 20,  20, 300, 400, Window, NULL, Instance, NULL);
    HWND View2 = CreateWindow(TEXT("STATIC"), NULL, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS, 340, 20, 300, 400, Window, NULL, Instance, NULL);
    sf::RenderWindow SFMLView1(View1);
    sf::RenderWindow SFMLView2(View2);

    // Load some images to display
    sf::Image Image1, Image2;
    if (!Image1.LoadFromFile("datas/win32/image1.jpg") || !Image2.LoadFromFile("datas/win32/image2.jpg"))
        return EXIT_FAILURE;
    sf::Sprite Sprite1(Image1);
    sf::Sprite Sprite2(Image2);
    Sprite1.SetCenter(Sprite1.GetSize() / 2.f);

    // Create a clock for measuring elapsed time
    sf::Clock Clock;

    // Loop until a WM_QUIT message is received
    MSG Message;
    Message.message = static_cast<UINT>(~WM_QUIT);
    while (Message.message != WM_QUIT)
    {
        if (PeekMessage(&Message, NULL, 0, 0, PM_REMOVE))
        {
            // If a message was waiting in the message queue, process it
            TranslateMessage(&Message);
            DispatchMessage(&Message);
        }
        else
        {
            // Clear views
            SFMLView1.Clear();
            SFMLView2.Clear();

            // Draw sprite 1 on view 1
            Sprite1.SetRotation(Clock.GetElapsedTime() * 100);
            SFMLView1.Draw(Sprite1);

            // Draw sprite 2 on view 2
            Sprite2.SetX(cos(Clock.GetElapsedTime()) * 100);
            SFMLView2.Draw(Sprite2);

            // Display each view on screen
            SFMLView1.Display();
            SFMLView2.Display();
        }
    }

    // Destroy the main window (all its child controls will be destroyed)
    DestroyWindow(Window);

    // Don't forget to unregister the window class
    UnregisterClass(TEXT("SFML App"), Instance);

    return EXIT_SUCCESS;
}

. This code displays on the screen a window split in 2. In both sides is the same image but it moves different. Down the window is a button "Quit". If I press that button, it closes the program.
Now, how can I do this without using WINAPI? The right question is if I can do this using the functions in SFML.
For instance, what can I put a button in the window created by the program below?

#include<SFML/Graphics.hpp>


int main()
{
    sf::RenderWindow wnd(sf::VideoMode(400, 500), "Window");
    while(wnd.IsOpened())
    {
        sf::Event ev;
        while(wnd.GetEvent(ev))
        {
            if(ev.Type==sf::Event::Closed)
            wnd.Close();
        }
        wnd.Clear();
        wnd.Display();
    }
    return EXIT_SUCCESS;
}

Thanks.

[Code Assassin]

Hmm.

Here's what I suggest you do:
1.Load A Button Image(Position It)
2.Create a function that detects if the mouse cursor is over your button/image.
3. Make an if statement that detects if the mouse cursor is over the image/button, and detects whether the user has clicked it(sf::Mouse).

[CosminNTG]

It's a good idea, a very good idea. Thanks. So when I click the image, is like I click on a button.
But in SFML doesn't exist a function that makes a button? Like Button function in WINAPI. (Just asking)

[Code Assassin]

Ha, of course not.

SFML doesn't have a Button function. You can make one. Just follow those steps and you'll be fine. And another thing, when you create the image, make sure to auto crop it.

[CosminNTG]

Allright! Thank you very much for help!

[Code Assassin]

=] No problem. You did all the work(lol).

[CosminNTG]

Look...hmm I fell a bit embarassed but I really want to do this program so I have to ask you a last one thing:

#include<SFML/Graphics.hpp>
#include<SFML/Audio.hpp>

int main()
{
    sf::RenderWindow wnd(sf::VideoMode(400, 500), "Window");
    sf::Image img;
    sf::Music msc;
    if(msc.OpenFromFile("rds.ogg"))
    return EXIT_FAILURE;
    if(!img.LoadFromFile("imgs.jpg"))
    return EXIT_FAILURE;
    sf::Sprite spr(img);
    spr.SetPosition(300.f, 300.f);
    while(wnd.IsOpened())
    {
        sf::Event ev;
        while(wnd.GetEvent(ev))
        {
            if(ev.Type==sf::Event::Closed)
            wnd.Close();
        }
        if(((wnd.GetInput().GetMouseX())==300.f)&&((wnd.GetInput().GetMouseY())==300.f))
        {
            if(wnd.GetInput().IsMouseButtonDown(sf::Mouse::Left))
            msc.Play();
        }
        wnd.Clear();
        wnd.Draw(spr);
        wnd.Display();
    }
    return EXIT_SUCCESS;
}

What am I doing wrong here? It just appear and disappear quickly like that old programs in Borland. I try to find the coodronates of the mouse by using the functions GetMouseX() and GetMouseY() and if is the left mouse button pressed, to play that music.
Thanks.

[Intrexa]

    if(msc.OpenFromFile("rds.ogg"))
    return EXIT_FAILURE;

If you have an rds.ogg, you are exiting the program bnefore you even get off the ground.