2024-06-15WPF RenderTargetBitmap DrawingVisual DrawingContext DrawImage DrawRectangle DrawEllipse DrawText DrausingSystem;usingSystem.Collections.Generic;usingSystem.Globalization;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;usingSystem.Windows;usingSystem.Windows.Controls;usingSystem.Windows.Data;usingSystem.Windows.Documents;