using (DrawingContext dc = drawingVisual.RenderOpen())
{
dc.DrawImage...var croppedBitmap = new CroppedBitmap(bitmapImage, new Int32Rect(0, 0, 50, 50));
dc.DrawImage...(croppedBitmap, new Rect(10, 10, 50, 50));
dc.DrawImage(bitmapImage, new Rect(100, 100...var croppedBitmap = new CroppedBitmap(bitmapImage, new Int32Rect(0, 0, 50, 50));
dc.DrawImage...----
本文会经常更新,请阅读原文: https://lindexi.gitee.io/post/WPF-%E9%80%9A%E8%BF%87-DrawingContext-DrawImage