Hello everyone,

I realized a 3d scene with networking support. I would like to detect collision amoung object and mouse using Ray Class. Each time I run the game the collision detection happened in different coordinates even if I pointed to the same point. Then I made the application draws mouse position and I discovered the it change everytime I launch the game. the 2d coordinates system doesn't start always from the top-left vetex of the window.

There's the way to define the start point of the 2d reference system so that I can fixed it each time i launch the game?

thanks anyone could help me.

Bye

I'm going to assume you are using XNA in a WinForm, but you haven't given enough information to know for sure if that is true.

If so, you need to set the Mouse.WindowHandle property to your game window handle (maybe Game.Window.Handle, I can't remember offhand). Also see this thread for issues when you open and close dialogs.

Hi, thanks for reply!
I'm not using a winform, this problem happens into main window game. Each time I run the game, the origin of mouse coordinates system changes. For example, if I make the program write a string in mouse position it alwayes appear with a different offset related to cursor pointer, even if I don't set any offset.

I tried to use Mouse.WindowHandle but nothing changed!

Ayway If I remove networking it works properly (but iI can't because I need it!). Any other suggestion?

Hello, I solved the problem

just put:

Mouse.WindowHandle = this.Window.Handle;

at the beginning of Update cicle!