Windows 窗体中背景图像的位置 [英] Position of BackgroundImage in Windows Form

问题描述

我正在将 Windows 窗体的 BackgroundImage 设置为 200 x 200 图像.表单为 500 x 500.我希望图像锚定在表单的右下角.然而，我唯一可用的选项是 BackgroundImageLayout 属性 - 将其设置为无"会导致图像锚定在左上角.我该如何更改?

I am setting the BackgroundImage of a Windows Form to a 200 x 200 image. The Form is 500 x 500. I want the image to be anchored in the bottom right corner of the form. However the only option available to me is the BackgroundImageLayout property - setting this to 'None' results in the image being anchored to the top left. How can I change this?

注意:我使用的是 .NET 2.0

Note: I am using .NET 2.0

推荐答案

只需在 OnPaintBackground() 方法中自己绘制即可.将图片添加到资源中(我叫它BkgImage)并使表单代码如下所示:

Just draw it yourself in the OnPaintBackground() method. Add the image to the resources (I called it BkgImage) and make the form code look like this:

    public Form1() {
        InitializeComponent();
        backgroundImage = Properties.Resources.BkgImage;
        this.DoubleBuffered = true;
        this.SetStyle(ControlStyles.ResizeRedraw, true);
    }
    private Image backgroundImage;

    protected override void OnPaintBackground(PaintEventArgs e) {
        base.OnPaintBackground(e);
        var rc = new Rectangle(this.ClientSize.Width - backgroundImage.Width,
            this.ClientSize.Height - backgroundImage.Height, 
            backgroundImage.Width, backgroundImage.Height);
        e.Graphics.DrawImage(backgroundImage, rc);
    }

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