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Posted on 2011-02-21 21:32 penngo 阅读(915) 评论(0) 编辑 收藏 所属分类: Java
把之前写的鼠标钩子 http://www.blogjava.net/pengo/archive/2010/12/17/340938.html代码封装下，放在博客里，下次要用时方便点，该部分代码已用在 ColorCat中。
MouseHookProc.java
 import com.sun.jna.platform.win32.WinDef.LRESULT;
import com.sun.jna.platform.win32.WinDef.WPARAM;
import com.sun.jna.platform.win32.WinUser.HOOKPROC;
  public interface MouseHookProc extends HOOKPROC {
 LRESULT callback(int nCode, WPARAM wParam, MouseHookStruct lParam);
 }
MouseHookStruct.java
import com.sun.jna.Structure;
import com.sun.jna.platform.win32.BaseTSD.ULONG_PTR;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.platform.win32.WinUser.POINT;
/** *//**
* 屏幕取色工具
*
* @author penngo(http://www.blogjava.net/pengo/)
*/
public class MouseHookStruct extends Structure
{
  public static class ByReference extends MouseHookStruct implements Structure.ByReference {};
public POINT pt;
public HWND hwnd;
public int wHitTestCode;
public ULONG_PTR dwExtraInfo;
}
MouseHookListener.java
import com.sun.jna.platform.win32.WinDef.WPARAM;
/** *//**
* 屏幕取色工具
*
* @author penngo(http://www.blogjava.net/pengo/)
*/
public interface MouseHookListener{
void mouseMove(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void lButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void lButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void rButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void rButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void mButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam);
void mButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam);
}
MouseHook.java
import com.sun.jna.Platform;
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.User32;
import com.sun.jna.platform.win32.WinUser;
import com.sun.jna.platform.win32.WinDef.HMODULE;
import com.sun.jna.platform.win32.WinDef.LRESULT;
import com.sun.jna.platform.win32.WinDef.WPARAM;
import com.sun.jna.platform.win32.WinUser.HHOOK;
import com.sun.jna.platform.win32.WinUser.MSG;
/** *//**
* @author penngo(http://www.blogjava.net/pengo/)
*/
public class MouseHook {
public static final int WM_MOUSEMOVE = 512;
public static final int WM_LBUTTONDOWN = 513;
public static final int WM_LBUTTONUP = 514;
public static final int WM_RBUTTONDOWN = 516;
public static final int WM_RBUTTONUP = 517;
public static final int WM_MBUTTONDOWN = 519;
public static final int WM_MBUTTONUP = 520;
public User32 lib;
private static HHOOK hhk;
private MouseHookListener hookListener;
private HMODULE hMod;
private boolean isWindows = false;
private boolean isStart = false;
public MouseHook() {
isWindows = Platform.isWindows();
if(isWindows){
lib = User32.INSTANCE;
hMod = Kernel32.INSTANCE.GetModuleHandle(null);
 }
}
public void addMouseHookListener(MouseHookListener hookListener) {
this.hookListener = hookListener;
}
public void startWindowsHookEx() {
MouseHookProc hookProc = new MouseHookProc(){
public LRESULT callback(int nCode, WPARAM wParam,
MouseHookStruct lParam) {
if (nCode >= 0) {
switch (wParam.intValue()) {
case MouseHook.WM_MOUSEMOVE:
hookListener.mouseMove(nCode, wParam, lParam);
break;
case MouseHook.WM_LBUTTONDOWN:
hookListener.lButtonDown(nCode, wParam, lParam);
break;
case MouseHook.WM_LBUTTONUP:
hookListener.lButtonUp(nCode, wParam, lParam);
break;
case MouseHook.WM_RBUTTONDOWN:
hookListener.rButtonDown(nCode, wParam, lParam);
break;
case MouseHook.WM_RBUTTONUP:
hookListener.rButtonUp(nCode, wParam, lParam);
break;
case MouseHook.WM_MBUTTONDOWN:
hookListener.mButtonDown(nCode, wParam, lParam);
break;
case MouseHook.WM_MBUTTONUP:
hookListener.mButtonUp(nCode, wParam, lParam);
break;
}
}
return lib.CallNextHookEx(hhk, nCode, wParam,
lParam.getPointer());
}
};
if(isWindows){
isStart = true;
lib.SetWindowsHookEx(WinUser.WH_MOUSE_LL, hookProc, hMod, 0);
MSG msg = new MSG();
lib.GetMessage(msg, null, 0, 0);
}
}
public void stopWindowsHookEx() {
if(isWindows && isStart){
lib.UnhookWindowsHookEx(hhk);
isStart = false;
}
}
}
使用例子，很简单，只需实现一个MouseHookListener接口就行了，在MouseHookListener里面实现你要干的事就行了。
TestMain.java
import com.sun.jna.platform.win32.WinDef.WPARAM;
public class TestMain {
public static void main(String[] args) throws Exception{
MouseHook mouseHook = new MouseHook();
mouseHook.addMouseHookListener(new MouseHookListener() {
public void mouseMove(int nCode, WPARAM wParam,
MouseHookStruct lParam){
int x = lParam.pt.x;
int y = lParam.pt.y;
System.out.println(x + " " + y);
}
public void lButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
public void lButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
public void rButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
public void rButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
public void mButtonDown(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
public void mButtonUp(int nCode, WPARAM wParam,
MouseHookStruct lParam){
}
});
mouseHook.startWindowsHookEx();
Thread.sleep(10000);
mouseHook.stopWindowsHookEx();
}
}
以上代码需要jna包支持。
代码放在 ColorCat里面，svn下载地址： https://colorcat.googlecode.com/svn/trunk/src/com/colorcat/mouse，需要的自己下载。
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