C#中计算字符串文本所占的尺寸 [TextRenderer.MeasureText]

分手后的思念是犯贱 2021-11-23 09:58 238阅读 0赞

提供的尺寸，以像素为单位指定的文本时使用指定的字体，使用指定的大小创建初始边框绘制。

**命名空间:**    [ System.Windows.Forms][System.Windows.Forms]  
**程序集:**  System.Windows.Forms（位于 System.Windows.Forms.dll）

下面的代码示例演示如何使用其中一个 [ MeasureText][MeasureText] 方法。 若要运行本示例，请将代码粘贴到一个 Windows 窗体并调用

private static void DrawALineOfText(PaintEventArgs e) 
    { 
        // Declare strings to render on the form. 
        string[] stringsToPaint = { "Tail", "Spin", " Toys" }; 
     
        // Declare fonts for rendering the strings. 
        Font[] fonts = { new Font("Arial", 14, FontStyle.Regular),  
            new Font("Arial", 14, FontStyle.Italic),  
            new Font("Arial", 14, FontStyle.Regular) }; 
     
        Point startPoint = new Point(10, 10); 
     
        // Set TextFormatFlags to no padding so strings are drawn together. 
        TextFormatFlags flags = TextFormatFlags.NoPadding; 
     
        // Declare a proposed size with dimensions set to the maximum integer value. 
        Size proposedSize = new Size(int.MaxValue, int.MaxValue); 
     
        // Measure each string with its font and NoPadding value and  
        // draw it to the form. 
        for (int i = 0; i < stringsToPaint.Length; i++) 
        { 
            Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i],  
                fonts[i], proposedSize, flags); 
            Rectangle rect = new Rectangle(startPoint, size); 
            TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i], 
                startPoint, Color.Black, flags); 
            startPoint.X += size.Width; 
        } 
     
    }

[System.Windows.Forms]: https://technet.microsoft.com/zh-cn/system.windows.forms%28v=vs.140%29
[MeasureText]: https://technet.microsoft.com/zh-cn/y4xdbe66%28v=vs.140%29