基本适应win7,win10,win server 08,win server 12,win server 16的截图

common/context.go

@@ -0,0 +1,12 @@
+package common
+
+import "context"
+
+func Opened(_ctx context.Context) bool {
+	select {
+	case <-_ctx.Done():
+		return false
+	default:
+		return true
+	}
+}