拉伸图像，不拉伸绘图

Question

我有一个 200x200 的图片框，它有一个 100x100 的图像，我使用 pictureBox.SizeMode = PictureBoxSizeMode.StretchImage; 对其进行了拉伸。之后我想在上面画一张 50x50 的图片，但不要拉伸它。我正在使用这段代码，但它仍然会拉伸 50x50 图像：

//setting the pictureBoxes image
pictureBox.Image = (Image)Properties.Resources.ResourceManager.GetObject("100x100_Image");
pictureBox.SizeMode = PictureBoxSizeMode.StretchImage;

//drawing the second image
Point x = new Point(0, 0);
Bitmap bmp = new Bitmap(pictureBox.Image);
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(new Bitmap((Image)Properties.Resources.ResourceManager.GetObject("50x50_Image")), x);
pictureBox.Image = bmp;

Answer 1

使用PictureBox的Paint事件：

private void PictureBox1_Paint(object sender, PaintEventArgs e) {
  var bmp50 = Properties.Resources._50x50_Image;
  e.Graphics.DrawImage(bmp50, new Point(0, 0));
}

拉伸图像，不拉伸绘图

Stretching image, without stretching drawing

c#

image

picturebox

draw