请教：如果设置让窗体不在任务栏里出现（测试设置窗体WS_EX_TOOLWINDOW属性无效果）

下面是测试代码，是我哪里弄错了，请高手指教，谢谢。 ```go package main import ( "github.com/lxn/walk" "github.com/lxn/walk/declarative" "github.com/lxn/win" ) func main() { form := new(walk.MainWindow) declarative.MainWindow{ AssignTo: &form, Title: "test", Size: declarative.Size{300, 300}, }.Create() setFormStyle(form) form.Run() } func setFormStyle(form *walk.MainWindow) { // 设置窗口样式 style := win.GetWindowLong(form.Handle(), win.GWL_STYLE) style = style | win.WS_EX_TOOLWINDOW win.SetWindowLong(form.Handle(), win.GWL_STYLE, style) } ```