[C#] 繪製文字

繪製文字有兩種方法

1. Graphics.DrawString：作法：在 Windows Form 上繪製文字
2. TextRenderer.DrawText：作法：使用 GDI 繪製文字

該篇是上述兩篇筆記

using System;
using System.Drawing;
using System.Windows.Forms;

namespace GraphicsSample
{
    public partial class FrmText : Form
    {
        private Font font = new Font("微軟正黑體" , 30);

        public FrmText()
        {
            InitializeComponent();
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            DrawString();
            RenderText(e);
        }
        public void DrawString()
        {
            using (Graphics g = this.CreateGraphics())
            using (SolidBrush b = new SolidBrush(Color.Black))
            {
                string drawString = "Graphics.DrawString：Sample Text";
                float x = 10.0F;
                float y = 10.0F;
                g.DrawString(drawString, font, b, x, y);
            }
        }

        private void RenderText(PaintEventArgs e)
        {
            // TextFormatFlags 列舉說明
            // Bottom：文字對齊底部
            // EndEllipsis：移除已修剪字行的結尾，並以省略符號取代
            TextFormatFlags flags = TextFormatFlags.Bottom | TextFormatFlags.EndEllipsis;
            TextRenderer.DrawText(e.Graphics, "TextRenderer.DrawText：Sample Text", font,
                new Rectangle(10, 40, 700, 100), SystemColors.ControlText, flags);
        }
    }
}

文章重點

The DrawText methods of the TextRenderer class are not supported for printing. When printing, always use the DrawString methods of the Graphics class.

• 參考資料
• 作法：在指定的位置繪製文字
• TextFormatFlags 列舉
• C# DrawString 字型問題