Java Keylistener 没有打开窗口？

我正在尝试用 Java 创建一个自动点击器（这是我所知道的语言，而且我刚刚学习了线程）。我想让小程序在它自己的窗口中打开（而不是在网页上），并且我希望能够使用空格键启动和停止程序而不选择窗口，以便我可以在另一个程序上使用自动点击器并能够停止它而不需要 alt-f4ing 一堆东西。

有什么可以帮助我的吗？或者您有什么建议吗？

迟到的答案，但希望有帮助:)

您可以使用 JNA，这很容易！

1. 获取 JNA (jna.jar)

2. 在表单中为 User32 (User32.dll) 创建您自己的映射

   
   
   public interface User32 extends StdCallLibrary {
   User32 INSTANCE = (User32) Native.loadLibrary("User32", User32.class,   Options.UNICODE_OPTIONS);
   
   
   // dwWakeMask Constants
   public static final int QS_ALLEVENTS = 0x04BF;
   public static final int QS_ALLINPUT = 0x04FF;
   public static final int QS_ALLPOSTMESSAGE = 0x0100;
   public static final int QS_HOTKEY = 0x0080;
   public static final int QS_INPUT = 0x407;
   public static final int QS_KEY = 0x0001;
   public static final int QS_MOUSE = 0x0006;
   public static final int QS_MOUSEBUTTON = 0x0004;
   public static final int QS_MOUSEMOVE = 0x0002;
   public static final int QS_PAINT = 0x0020;
   public static final int QS_POSTMESSAGE = 0x0008;
   public static final int QS_RAWINPUT = 0x0400;
   public static final int QS_SENDMESSAGE = 0x0040;
   public static final int QS_TIMER = 0x0010;
   
   
   public static final int INFINITE =    0xFFFFFFFF;
   
   
   /*
   DWORD WINAPI MsgWaitForMultipleObjects(
   __in  DWORD nCount,
   __in  const HANDLE *pHandles,
   __in  BOOL bWaitAll,
   __in  DWORD dwMilliseconds,
   __in  DWORD dwWakeMask
   );*/
   
   
   int MsgWaitForMultipleObjects(int nCount, Pointer pHandles, boolean bWaitAll, int dwMilliSeconds, int dwWakeMask);
   
   
   /* fsModifiers vaues */
   public static final int MOD_ALT = 0x0001;
   public static final int MOD_CONTROL = 0x0002;
   public static final int MOD_NOREPEAT = 0x4000;
   public static final int MOD_SHIFT = 0x0004;
   public static final int MOD_WIN = 0x0008;
   
   
   /* BOOL WINAPI RegisterHotKey(
   __in_opt  HWND hWnd,
   __in      int id,
   __in      UINT fsModifiers,
   __in      UINT vk
   );
   */
   boolean RegisterHotKey(Pointer hWnd, int id, int fsModifiers, int vk);
   }
     

3. 只需查看以下几页即可清楚地了解其幕后工作原理：

h**p://msdn.microsoft.com/en-us/library/ms646309%28VS.85%29.aspx

h**p://msdn.microsoft.com/en-us/library/ms684242%28VS.85%29.aspx

1. 检查此页面以了解您可以为其注册回调的关键常量

h**p://msdn.microsoft.com/en-us/library/dd375731%28v=VS.85%29.aspx

1. 创建一个像这样的测试程序：

User32 user32 = User32.INSTANCE;
boolean res = user32.RegisterHotKey(Pointer.NULL, 9999, User32.MOD_ALT | User32.MOD_CONTROL, WINUSER.VK_LEFT);
if(!res)
  System.out.println("Couldn't register hotkey");

System.out.println("Starting and waiting");
user32.MsgWaitForMultipleObjects(0, Pointer.NULL, true, User32.INFINITE, User32.QS_HOTKEY);
System.out.println("Ending");
  

User32.INFINITE 是一个未记录的常量，值为 0xFFFFFFFF

很抱歉将 http 链接重命名为 h**p :) Stackoverflow 规则 斯特凡诺