wrong mouse coordinates and yes i did search in google

[Fantasy]

Hello guys
First of all I did go and search before i post this topic and i found a lot of posts about this topic but my problem is a bit wired.

My window is 800, 600 and when i print the mouse coordinates i get x from -500 to 1300 and Y from -200 to 800.

how can i make the lowest value for x 0 and biggest 800 and for y 0 and 600?

Code: [Select]

#include <SFML\Graphics.hpp>
#include <SFML\Window.hpp>

#include <string>
#include <iostream>

#pragma comment(lib, "sfml-window-d.lib")  
#pragma comment(lib, "sfml-graphics-d.lib")  
#pragma comment(lib, "sfml-system-d.lib")  

int main()
{
sf::RenderWindow Window(sf::VideoMode(800, 600, 32), "HI");

while(Window.IsOpen())
{

std::cout<<sf::Mouse::GetPosition(Window).x << " ";
std::cout<<sf::Mouse::GetPosition(Window).y << "\n";

Window.Clear();
Window.Display();
}
return 0;
}

[Laurent]

Is (-500, -200) the top-left corner of your window, or the top-left corner of your screen?

[Fantasy]

Is (-500, -200) the top-left corner of your window, or the top-left corner of your screen?

top-left corner of my screen.

my screen is 1080, 1920. before when i just do this

Code: [Select]


std::cout<<sf::Mouse::GetPosition().x << " ";
std::cout<<sf::Mouse::GetPosition().y << "\n";


i was getting 0, 0 top corner of my screen and 1920, 1080 bottom right corner of my screen.

after i did this

Code: [Select]


std::cout<<sf::Mouse::GetPosition(Window).x << " ";
std::cout<<sf::Mouse::GetPosition(Window).y << "\n";


i get -500, -270 top corrner of my screen and 1300, 800 bottom right corner of my screen.

My window size is 800, 600. and screen size is 1920, 1080.

[Laurent]

So what's wrong? You get coordinates relative to your window, everything's ok.

[Fantasy]

So what's wrong? You get coordinates relative to your window, everything's ok.

in sfml 1.6 when i move the mouse to the top left corner of my window i get 0, 0. Even if i move my mouse out of the window i still get 0,0.
However in sfml 2.0 when i move my mouse to the top left corner of my window i get 0,0 BUT when i keep moving the mouse to the top corner of my screen i get -500, -270. It should stop at 0, 0.

[Laurent]

It should stop at 0, 0.

Why? The mouse is not at (0, 0) when it's in the corner of the screen. The new behaviour is more consistent.

If you don't want negative coordinates, just clamp them.

And please remove your image:
- it is too large, it forces to scroll to reach the forum buttons
- it is too heavy, it takes many seconds to display

[Fantasy]

It should stop at 0, 0.

Why? The mouse is not at (0, 0) when it's in the corner of the screen. The new behaviour is more consistent.

If you don't want negative coordinates, just clamp them.

And please remove your image:
- it is too large, it forces to scroll to reach the forum buttons
- it is too heavy, it takes many seconds to display

sorry about the images.
ok but how do i keep the mouse coordinates between 0,0 and 800,600 which is the window size?

how do i clamp them?

[Laurent]

Code: [Select]

if (position.x < 0)
    position.x = 0;
etc.

[Fantasy]

Code: [Select]

if (position.x < 0)
    position.x = 0;
etc.

thanks that was helpful.