获取Picturebox内缩放图像的精确大小

I'm using WinForms. In my Form i have a picturebox. It's sizemode is set to Zoom. If i load an image into the picturebox the image will zoom according to the picturebox dimensions.

我正在使用WinForms。在我的表格中我有一个图片框。它的sizemode设置为Zoom。如果我将图像加载到图片框中，图像将根据图片框尺寸进行缩放。

I wanted to know how I can get the size of the zoomed image inside the picturebox.

我想知道如何在图片框中获得缩放图像的大小。

These are some of the things i tried, but this doesn't give me the result i wanted.

这些是我尝试过的一些东西，但这并没有给我我想要的结果。

    private void Debug_Write_Click(object sender, EventArgs e)
    {
        //var pictureWidth = pictureBox1.ClientSize.Width; //This gives the size of the picturebox
        //var picturewidth1 = pictureBox1.Image.Width; This gives the actual size of the image


        //var pictureHight = pictureBox1.ClientSize.Height; //This gives the size of the picturebox
        //var pictureHight1 = pictureBox1.ClientSize.Height; This gives the actual size of the image

        Debug.WriteLine("Width: " + pictureWidth.ToString() + " Height: " + pictureHight.ToString());
    }

Example: Actual Size of image

示例：图像的实际大小

Picturebox size mode is set to Zoom, so it zoomed the image depending on my picturebox size:

Picturebox尺寸模式设置为Zoom，因此它会根据我的图片框尺寸缩放图像：

How do i find out the zoomed length and width of this image?

如何找出此图像的缩放长度和宽度？

1 个解决方案

#1

You should do the math!

你应该做数学！

Image img = //...;
PictureBox pb = //...;

var wfactor = (double)img.Width / pb.ClientSize.Width;
var hfactor = (double)img.Height / pb.ClientSize.Height;

var resizeFactor = Math.Max(wfactor, hfactor);
var imageSize = new Size((int)(img.Width / resizeFactor), (int)(img.Height / resizeFactor));