[Amin_Mansouri]

کد:

Make your form implement IMessageFilter.

Then add the following code to the form:
    Rectangle BoundRect;
    Rectangle OldRect = Rectangle.Empty;

    private void EnableMouse()
    {
        Cursor.Clip = OldRect;
        Cursor.Show();
        Application.RemoveMessageFilter(this);
    }
    public bool PreFilterMessage(ref Message m)
    {
        if (m.Msg == 0x201 || m.Msg == 0x202 || m.Msg == 0x203) return true;
        if (m.Msg == 0x204 || m.Msg == 0x205 || m.Msg == 0x206) return true;
        return false;
    }
    private void DisableMouse()
    {
        OldRect = Cursor.Clip;
        // Arbitrary location.
        BoundRect = new Rectangle(50, 50, 1, 1);  
        Cursor.Clip = BoundRect;
        Cursor.Hide();
        Application.AddMessageFilter(this);
    }  

This will hide the cursor, make it so that they can't move it and disable the right and left mousebuttons.

اینم یه مثال دیگه

کد:

public partial class NativeMethods {

    /// Return Type: BOOL->int
    ///fBlockIt: BOOL->int
    [System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint="BlockInput")]
    [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
public static extern  bool BlockInput([System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] bool fBlockIt) ;

}

public static void BlockInput(TimeSpan span) {
  try {  
    NativeMethods.BlockInput(true);
    Thread.Sleep(span);
  } finally {
    NativeMethods.BlockInput(false);
  }
}

برو حالشو ببر :heart: