diff --git a/robotgo.go b/robotgo.go
index 83acb42..8dcfe11 100644
--- a/robotgo.go
+++ b/robotgo.go
@@ -1286,6 +1286,40 @@ func GetActive() C.MData {
 	return mdata
 }
 
+// MinWindow set the window min
+func MinWindow(pid int32, args ...interface{}) {
+	var (
+		state = true
+		hwnd  int
+	)
+
+	if len(args) > 0 {
+		state = args[0].(bool)
+	}
+	if len(args) > 1 {
+		hwnd = args[1].(int)
+	}
+
+	C.min_window(C.uintptr(pid), C.bool(state), C.uintptr(hwnd))
+}
+
+// MaxWindow set the window max
+func MaxWindow(pid int32, args ...interface{}) {
+	var (
+		state = true
+		hwnd  int
+	)
+
+	if len(args) > 0 {
+		state = args[0].(bool)
+	}
+	if len(args) > 1 {
+		hwnd = args[1].(int)
+	}
+
+	C.max_window(C.uintptr(pid), C.bool(state), C.uintptr(hwnd))
+}
+
 // CloseWindow close the window
 func CloseWindow() {
 	C.close_window()
diff --git a/robotgo_win.go b/robotgo_win.go
index 0a188fc..f8a0242 100644
--- a/robotgo_win.go
+++ b/robotgo_win.go
@@ -14,3 +14,10 @@ func FindWindow(str string) win.HWND {
 
 	return hwnd
 }
+
+// GetHWND get foreground window hwnd
+func GetHWND() win.HWND {
+	hwnd := win.GetForegroundWindow()
+
+	return hwnd
+}
diff --git a/window/goWindow.h b/window/goWindow.h
index ec77960..cd49821 100644
--- a/window/goWindow.h
+++ b/window/goWindow.h
@@ -10,6 +10,7 @@
 
 #include "alert_c.h"
 #include "window.h"
+#include "win32.h"
 
 int show_alert(const char *title, const char *msg,
 	const char *defaultButton, const char *cancelButton){
@@ -57,6 +58,44 @@ bool is_valid(){
 // 	return z;
 // }
 
+void min_window(uintptr pid, bool state, uintptr isHwnd){
+	#if defined(IS_MACOSX)
+		// return 0;
+		AXUIElementRef axID = AXUIElementCreateApplication(pid);
+		
+		AXUIElementSetAttributeValue(axID, kAXMinimizedAttribute,
+		state ? kCFBooleanTrue : kCFBooleanFalse);
+	#elif defined(USE_X11)
+		// Ignore X errors
+		XDismissErrors();
+		// SetState((Window)pid, STATE_MINIMIZE, state);
+	#elif defined(IS_WINDOWS)
+		if (isHwnd == 0) {
+			HWND hwnd = GetHwndByPId(pid);
+			win_min(hwnd, state);
+		} else {
+			win_min((HWND)pid, state);
+		}
+	#endif
+}
+
+void max_window(uintptr pid, bool state, uintptr isHwnd){
+	#if defined(IS_MACOSX)
+		// return 0;
+	#elif defined(USE_X11)
+		XDismissErrors();
+		// SetState((Window)pid, STATE_MINIMIZE, false);
+		// SetState((Window)pid, STATE_MAXIMIZE, state);
+	#elif defined(IS_WINDOWS)
+		if (isHwnd == 0) {
+			HWND hwnd = GetHwndByPId(pid);
+			win_max(hwnd, state);
+		} else {
+			win_max((HWND)pid, state);
+		}
+	#endif
+}
+
 void close_window(void){
 	CloseWin();
 }
@@ -86,34 +125,6 @@ void set_active(const MData win){
 	SetActive(win);
 }
 
-#if defined(IS_WINDOWS)
-	typedef struct{
-	    HWND hWnd;
-	    DWORD dwPid;
-	}WNDINFO;
-
-	BOOL CALLBACK EnumWindowsProc(HWND hWnd, LPARAM lParam){
-	    WNDINFO* pInfo = (WNDINFO*)lParam;
-	    DWORD dwProcessId = 0;
-	    GetWindowThreadProcessId(hWnd, &dwProcessId);
-
-	    if (dwProcessId == pInfo->dwPid) {
-	        pInfo->hWnd = hWnd;
-	        return FALSE;
-	    }
-	    return TRUE;
-	}
-
-	HWND GetHwndByPId(DWORD dwProcessId){
-	    WNDINFO info = {0};
-	    info.hWnd = NULL;
-	    info.dwPid = dwProcessId;
-	    EnumWindows(EnumWindowsProc, (LPARAM)&info);
-	    // printf("%d\n", info.hWnd);
-	    return info.hWnd;
-	}
-#endif
-
 void active_PID(uintptr pid, uintptr isHwnd){
 	MData win;
 	#if defined(IS_MACOSX)
diff --git a/window/win32.h b/window/win32.h
new file mode 100644
index 0000000..b13dded
--- /dev/null
+++ b/window/win32.h
@@ -0,0 +1,46 @@
+// #include "../base/os.h"
+
+#if defined(IS_WINDOWS)
+	typedef struct{
+	    HWND hWnd;
+	    DWORD dwPid;
+	}WNDINFO;
+
+	BOOL CALLBACK EnumWindowsProc(HWND hWnd, LPARAM lParam){
+	    WNDINFO* pInfo = (WNDINFO*)lParam;
+	    DWORD dwProcessId = 0;
+	    GetWindowThreadProcessId(hWnd, &dwProcessId);
+
+	    if (dwProcessId == pInfo->dwPid) {
+	        pInfo->hWnd = hWnd;
+	        return FALSE;
+	    }
+	    return TRUE;
+	}
+
+	HWND GetHwndByPId(DWORD dwProcessId){
+	    WNDINFO info = {0};
+	    info.hWnd = NULL;
+	    info.dwPid = dwProcessId;
+	    EnumWindows(EnumWindowsProc, (LPARAM)&info);
+	    // printf("%d\n", info.hWnd);
+	    return info.hWnd;
+	}
+
+    // window
+    void win_min(HWND hwnd, bool state){
+        if (state) {
+            ShowWindow(hwnd, SW_MINIMIZE);
+        } else {
+            ShowWindow(hwnd, SW_RESTORE);
+        }
+    }
+
+    void win_max(HWND hwnd, bool state){
+        if (state) {
+            ShowWindow(hwnd, SW_MAXIMIZE);
+        } else {
+            ShowWindow(hwnd, SW_RESTORE);
+        }
+    }
+#endif
\ No newline at end of file