diff --git a/code/client/tunnel/vnc/define/user32_windows.go b/code/client/tunnel/vnc/define/user32_windows.go
index dc71df1..fc29ce1 100644
--- a/code/client/tunnel/vnc/define/user32_windows.go
+++ b/code/client/tunnel/vnc/define/user32_windows.go
@@ -12,6 +12,7 @@ var (
 	FuncGetDC, _            = syscall.GetProcAddress(syscall.Handle(libUser32), "GetDC")
 	FuncReleaseDC, _        = syscall.GetProcAddress(syscall.Handle(libUser32), "ReleaseDC")
 	FuncGetCursorInfo, _    = syscall.GetProcAddress(syscall.Handle(libUser32), "GetCursorInfo")
+	FuncGetIconInfo, _      = syscall.GetProcAddress(syscall.Handle(libUser32), "GetIconInfo")
 	FuncDrawIcon, _         = syscall.GetProcAddress(syscall.Handle(libUser32), "DrawIcon")
 )
 
diff --git a/code/client/tunnel/vnc/worker/capture_windows.go b/code/client/tunnel/vnc/worker/capture_windows.go
index b62b30c..b8ca4f6 100644
--- a/code/client/tunnel/vnc/worker/capture_windows.go
+++ b/code/client/tunnel/vnc/worker/capture_windows.go
@@ -78,24 +78,24 @@ func (worker *Worker) capture() error {
 	}
 	defer worker.copyImageData(bitmap)
 	if !worker.showCursor {
-		return
+		return nil
 	}
-	var curInfo CURSORINFO
-	curInfo.CbSize = DWORD(unsafe.Sizeof(curInfo))
+	var curInfo define.CURSORINFO
+	curInfo.CbSize = define.DWORD(unsafe.Sizeof(curInfo))
 	ok, _, err = syscall.Syscall(define.FuncGetCursorInfo, 1, uintptr(unsafe.Pointer(&curInfo)), 0, 0)
 	if ok == 0 {
 		logging.Error("get cursor info: %v", err)
 		return nil
 	}
-	if curInfo.Flags == CURSOR_SHOWING {
-		var info ICONINFO
+	if curInfo.Flags == define.CURSOR_SHOWING {
+		var info define.ICONINFO
 		ok, _, err = syscall.Syscall(define.FuncGetIconInfo, 2, uintptr(curInfo.HCursor), uintptr(unsafe.Pointer(&info)), 0)
 		if ok == 0 {
 			logging.Error("get icon info: %v", err)
 			return nil
 		}
-		x := curInfo.PTScreenPos.X - LONG(info.XHotspot)
-		y := curInfo.PTScreenPos.Y - LONG(info.YHotspot)
+		x := curInfo.PTScreenPos.X - define.LONG(info.XHotspot)
+		y := curInfo.PTScreenPos.Y - define.LONG(info.YHotspot)
 		ok, _, err = syscall.Syscall6(define.FuncDrawIcon, 4, memDC, uintptr(x), uintptr(y), uintptr(curInfo.HCursor), 0, 0)
 		if ok == 0 {
 			logging.Error("draw icon: %v", err)