unity3d 控制鼠标的移动范围-蒲公英云

unity3d 控制鼠标的移动范围

电玩女神 2022-03-12 02:45 737阅读 0赞

在一些论坛上看到有人问在unity里面控制鼠标的移动范围，有二种方法，一个是调用windows 系统的 user32.dll的ClipCursor函数

再一种就是通过Cursor.SetCursor函数

这里就介绍一下第一种方法吧，不说废话了直接上代码

[DllImport( “user32.dll”, CharSet = CharSet.Auto, ExactSpelling = true )]

[return: MarshalAs( UnmanagedType.Bool )]

public static extern bool ClipCursor( ref RECT rcClip );

[DllImport( “user32.dll” )]

[return: MarshalAs( UnmanagedType.Bool )]

public static extern bool GetClipCursor( out RECT rcClip );

[DllImport( “user32.dll” )]

static extern int GetForegroundWindow( );

[DllImport(“user32.dll”)]

[return: MarshalAs( UnmanagedType.Bool )]

static extern bool GetWindowRect( int hWnd, ref RECT lpRect );

[StructLayout( LayoutKind.Sequential )]

public struct RECT

{

public int Left;
public int Top;
public int Right;
public int Bottom;
public RECT( int left, int top, int right, int bottom )
\{
    Left = left;
    Top = top;
    Right = right;
    Bottom = bottom;
\}

}

RECT currentClippingRect;

RECT originalClippingRect = new RECT( );

void Start()

{

hndl = GetForegroundWindow( );
GetWindowRect( hndl, ref currentClippingRect );
GetClipCursor( out originalClippingRect );
ClipCursor( ref currentClippingRect);