diff --git a/CMakeLists.txt b/CMakeLists.txt
index e9d0cd4..095e4d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,12 +32,15 @@ add_subdirectory(ElaWidgetTools)
 # 导出src下的cpp文件
 file(GLOB_RECURSE SRC_FILES CONFIGURE_DEPENDS src/*.cpp src/UI/*.cpp)
 
-qt_add_executable(cbh
+qt_add_executable(${PROJECT_NAME}
     MANUAL_FINALIZATION
     ${SRC_FILES}
 )
 
-target_link_libraries(cbh PRIVATE
+# 添加宏定义，输出日志所处文件位置
+target_compile_definitions(${PROJECT_NAME} PRIVATE QT_MESSAGELOGCONTEXT)
+
+target_link_libraries(${PROJECT_NAME} PRIVATE
     Qt6::Widgets
     Qt6::Core
     Qt6::Gui
@@ -50,7 +53,7 @@ set(cbh_resource_files
     "assets/icon.png"
 )
 
-qt_add_resources(cbh "cbh"
+qt_add_resources(${PROJECT_NAME} "cbh"
     PREFIX
         "/"
     FILES
@@ -63,7 +66,7 @@ qt_add_resources(cbh "cbh"
 if(${QT_VERSION} VERSION_LESS 6.1.0)
     set(BUNDLE_ID_OPTION MACOSX_BUNDLE_GUI_IDENTIFIER com.example.cbh)
 endif()
-set_target_properties(cbh PROPERTIES
+set_target_properties(${PROJECT_NAME} PROPERTIES
     ${BUNDLE_ID_OPTION}
     MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
     MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
@@ -72,10 +75,10 @@ set_target_properties(cbh PROPERTIES
 )
 
 include(GNUInstallDirs)
-install(TARGETS cbh
+install(TARGETS ${PROJECT_NAME}
     BUNDLE DESTINATION .
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 
-qt_finalize_executable(cbh)
+qt_finalize_executable(${PROJECT_NAME})
diff --git a/src/main.cpp b/src/main.cpp
index 0839aae..d98252b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,15 +1,25 @@
 #include "ElaApplication.h"
-#include <QScreen>
-#include <QApplication>
-#include "window.h"
 #include "clipboard.h"
+#include "winSpy.h"
+#include "window.h"
+#include <QApplication>
+#include <QScreen>
 #ifdef Q_OS_WIN
     #include <Windows.h>
 #endif
 
 int main(int argc, char *argv[]) {
     QApplication a(argc, argv);
+// 设置消息模式：输出时间、类型、文件、行号和消息本身
+#ifdef QT_MESSAGELOGCONTEXT
+    qSetMessagePattern("[%{time yyyy-MM-dd HH:mm:ss.zzz}] [%{type}] %{file}:%{line} - %{message}");
+#else
+    qSetMessagePattern("[%{time yyyy-MM-dd HH:mm:ss.zzz}] [%{type}] - %{message}");
+#endif
+    // 设置监听剪贴板
     ClipboardMonitor cbm(&a);
+    // 设置监听系统窗口焦点变化
+    WinSpy spy;
     eApp->init();
     MainWindow w;
     w.show();
diff --git a/src/winSpy.cpp b/src/winSpy.cpp
new file mode 100644
index 0000000..5447a46
--- /dev/null
+++ b/src/winSpy.cpp
@@ -0,0 +1,103 @@
+#include <QDebug.h>
+#include <QString>
+#include <windows.h>
+
+#include "winSpy.h"
+
+// 全局变量，保存钩子句柄
+static HWINEVENTHOOK hook = NULL;
+
+// 获取窗口标题的辅助函数
+QString GetWindowTitle(HWND hwnd) {
+    char title[256];
+    if (GetWindowTextA(hwnd, title, sizeof(title))) {
+        return QString(title);
+    }
+    return "Untitled";
+}
+
+// 获取窗口所属进程名的辅助函数
+QString GetWindowProcessName(HWND hwnd) {
+    DWORD processId;
+    GetWindowThreadProcessId(hwnd, &processId);
+    HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processId);
+    if (hProcess) {
+        char  processName[MAX_PATH];
+        DWORD size = sizeof(processName);
+        if (QueryFullProcessImageNameA(hProcess, 0, processName, &size)) {
+            CloseHandle(hProcess);
+            QString fullPath(processName);
+            // 只返回可执行文件名称
+            qsizetype lastSlash = fullPath.lastIndexOf("\\");
+            if (lastSlash != -1) {
+                return fullPath.mid(lastSlash + 1);
+            }
+            return fullPath;
+        }
+        CloseHandle(hProcess);
+    }
+    return "Unknown";
+}
+
+// 事件回调函数
+void CALLBACK WinEventProc(HWINEVENTHOOK hWinEventHook, DWORD event, HWND hwnd, LONG idObject, LONG idChild, DWORD dwEventThread,
+                           DWORD dwmsEventTime) {
+
+    // 确保事件对象是窗口且事件是前台窗口改变
+    if (idObject != OBJID_WINDOW || idChild != CHILDID_SELF) {
+        return;
+    }
+
+    if (event == EVENT_SYSTEM_FOREGROUND) {
+        HWND foregroundWindow = GetForegroundWindow(); // 获取当前前景窗口
+        if (foregroundWindow) {
+            QString title       = GetWindowTitle(foregroundWindow);
+            QString processName = GetWindowProcessName(foregroundWindow);
+            // 记录信息，这里示例为输出到控制台
+            qDebug() << "Foreground Window Changed:";
+            qDebug() << "  Handle: " << foregroundWindow;
+            qDebug() << "  Title: " << title;
+            qDebug() << "  Process: " << processName;
+            qDebug() << "----------------------------------------";
+            // TODO: 处理窗口数据保存
+        }
+    }
+}
+
+void WinSpy::setHook() {
+    if (hook) {
+        qDebug() << "Already monitoring.";
+        return;
+    }
+    // 设置事件钩子，监听前台窗口变化事件
+    hook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND,                        // 最小事件值
+                           EVENT_SYSTEM_FOREGROUND,                        // 最大事件值
+                           NULL,                                           // 钩子函数所在的DLL句柄（NULL表示当前进程）
+                           WinEventProc,                                   // 事件回调函数指针
+                           0,                                              // 感兴趣的进程ID（0表示所有进程）
+                           0,                                              // 感兴趣的线程ID（0表示所有线程）
+                           WINEVENT_OUTOFCONTEXT | WINEVENT_SKIPOWNPROCESS // 标志：上下文外，跳过自身进程事件
+    );
+
+    if (!hook) {
+        qWarning() << "Failed to set win event hook!";
+        return;
+    }
+    qDebug() << "Start monitoring foreground window changes";
+    // // 消息循环是必须的，否则回调函数不会被调用
+    // MSG msg;
+    // while (GetMessage(&msg, NULL, 0, 0)) {
+    //     TranslateMessage(&msg);
+    //     DispatchMessage(&msg);
+    // }
+}
+
+void WinSpy::freeHook() {
+    // 程序退出前卸载钩子
+    if (hook) {
+        UnhookWinEvent(hook);
+    }
+}
+
+WinSpy::WinSpy() { setHook(); }
+WinSpy::~WinSpy() { freeHook(); }
diff --git a/src/winSpy.h b/src/winSpy.h
new file mode 100644
index 0000000..ecac86c
--- /dev/null
+++ b/src/winSpy.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <windows.h>
+
+class WinSpy {
+public:
+    WinSpy();
+    ~WinSpy();
+
+private:
+    void setHook();
+    void freeHook();
+};