Java MSG类代码示例

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
private void createHotKeys() {
	Thread keys = new Thread(() -> {
		keysThreadID = Kernel32.INSTANCE.GetCurrentThreadId();
		User32.INSTANCE.RegisterHotKey(new HWND(Pointer.NULL), 1, MOD_WIN | MOD_NOREPEAT, VK_E);
		MSG msg = new MSG();
		while (User32.INSTANCE.GetMessage(msg, new HWND(Pointer.NULL), 0, 0) != 0 && running) {
			if (msg.message == WM_HOTKEY) {
				try {
					switch (msg.wParam.intValue()) {
					case 1:
						new ProcessBuilder("explorer.exe", ",").start();
						break;
					}
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		User32.INSTANCE.UnregisterHotKey(Pointer.NULL, 1);
	});
	keys.start();
}
 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
public static void clipboardMonitor() {
	
	WString windowClass = new WString("MyWindowClass");
	HMODULE hInst = Kernel32.INSTANCE.GetModuleHandle("");
	WNDCLASSEX wClass = new WNDCLASSEX();
	wClass.hInstance = hInst;
	WindowProc wProc = new WindowProc();
	wClass.lpfnWndProc = wProc;
	wClass.lpszClassName = windowClass;

	// register window class
	User32.INSTANCE.RegisterClassEx(wClass);
	getLastError();

	// create new window
	HWND hWnd = User32.INSTANCE.CreateWindowEx(User32.WS_EX_TOPMOST, windowClass, "My hidden helper window, used only to catch the windows events", 0, 0, 0, 0, 0, null, null, hInst, null);
	getLastError();

	// set clipboard viewer
	HWND nextViewer = User32X.INSTANCE.SetClipboardViewer(hWnd);
	wProc.setNextViewer(nextViewer);

	// pump messages
	MSG msg = new MSG();
	while (User32.INSTANCE.GetMessage(msg, hWnd, 0, 0) != 0) {
		User32.INSTANCE.TranslateMessage(msg);
		User32.INSTANCE.DispatchMessage(msg);
	}
	
	// wait for input
	try {
		System.in.read();
	} catch (IOException e) {
		e.printStackTrace();
	}

	// destroy window
	User32.INSTANCE.UnregisterClass(windowClass, hInst);
	User32.INSTANCE.DestroyWindow(hWnd);
	System.exit(0);
}
 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
public void initKeyHook() {

	    thread = new Thread(new Runnable() {

		@Override
		public void run() {
		    final User32 lib = User32.INSTANCE;
		    HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
		    keyboardHook = new LowLevelKeyboardProc() {
			public LRESULT callback(int nCode, WPARAM wParam,
				KBDLLHOOKSTRUCT info) {
			    if (nCode >= 0) {
				switch (wParam.intValue()) {
				// case WinUser.WM_KEYUP:
				case WinUser.WM_KEYDOWN:
				    // case WinUser.WM_SYSKEYUP:
				case WinUser.WM_SYSKEYDOWN:
				    // do active
				    userActive();
				}
			    }
			    return lib.CallNextHookEx(hhk, nCode, wParam,
				    info.getPointer());
			}
		    };
		    hhk = lib.SetWindowsHookEx(WinUser.WH_KEYBOARD_LL,
			    keyboardHook, hMod, 0);

		    // This bit never returns from GetMessage
		    int result;
		    MSG msg = new MSG();
		    while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) {
			if (result == -1) {
			    System.err.println("error in get message");
			    break;
			} else {
			    System.err.println("got message");
			    lib.TranslateMessage(msg);
			    lib.DispatchMessage(msg);
			}
		    }
		    lib.UnhookWindowsHookEx(hhk);
		}
	    });
	    thread.start();
	}
 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
public synchronized void registerMouseUpListner(Runnable action,
		Executor executor)
{
	if (thrd != null)
		return;
	this.action = action;
	thrd = new Thread(new Runnable()
	{

		public void run()
		{
			try
			{
				if (!isHooked)
				{
					hhk = USER32INST.SetWindowsHookEx(14,
							(HOOKPROC) mouseHook,
							KERNEL32INST.GetModuleHandle(null), 0);
					isHooked = true;
					MSG msg = new MSG();
					while ((USER32INST.GetMessage(msg, null, 0, 0)) != 0)
					{
						System.out.println("got message");
						USER32INST.TranslateMessage(msg);
						USER32INST.DispatchMessage(msg);
						System.out.print(isHooked);
						if (!isHooked)
							break;
					}
				}
				else
					System.out.println("The Hook is already installed.");
			}
			catch (Exception e)
			{
				System.err.println(e.getMessage());
				System.err.println("Caught exception in MouseHook!");
			}
			// System.out.println("terminated ");
			USER32INST.UnhookWindowsHookEx(hhk);
			hhk = null;
		}

	}, "Named thread");
	threadFinish = false;
	thrd.start();

}
 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
int GetMessage(MSG msg, HWND hwnd, int filterMin, int filterMax); 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
boolean TranslateMessage(MSG msg); 

import com.sun.jna.platform.win32.WinUser.MSG; //导入依赖的package包/类
LRESULT DispatchMessage(MSG msg);