Graphics.Drawstring在PictureBox中看起来不错,但在Bitmap中看起来很糟糕

Question

我试图用DrawString文字作为图像,然后旋转90度.它既可以使用位图也可以直接在PictureBox上工作,但最大的区别在于质量.PictureBox绘制的文字质量很好,看起来不错.当我在图像上绘制它看起来很可怕和块状.我做了一些改变试图让它看起来更好,但它看起来并不像它应该的那么好.

示例代码:

使用Windows窗体项目并在其上放置2个图片框和一个按钮,并使用以下代码运行它以查看我的意思:

Public Class Form1
   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

       Dim g As System.Drawing.Graphics
       g = PictureBox1.CreateGraphics

       ' x.DrawRectangle(New Pen(Brushes.White, 200), New Rectangle(0, 0, 200, 200))
       g.TranslateTransform(10.0F, 0.0F)
       g.RotateTransform(90)
       g.DrawString("MM Components", New Font("Arial", 7, FontStyle.Regular), Brushes.DarkBlue, New PointF(0, 0))

       Dim g2 As System.Drawing.Graphics
       Dim img As New Bitmap(300, 300, Drawing.Imaging.PixelFormat.Format24bppRgb)
       g2 = Graphics.FromImage(img)

       g2.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias
       g2.TextRenderingHint = Drawing.Text.TextRenderingHint.AntiAliasGridFit
       g2.CompositingQuality = Drawing2D.CompositingQuality.HighQuality
       ' img.SetResolution(150, 150)

       ' x.DrawRectangle(New Pen(Brushes.White, 200), New Rectangle(0, 0, 200, 200))
       g2.TranslateTransform(10.0F, 0.0F)
       g2.RotateTransform(90)
       g2.FillRectangle(Brushes.White, 0, 0, 300, 300)
       g2.DrawString("MM Components", New Font("Arial", 7, FontStyle.Regular), Brushes.DarkBlue, New PointF(0, 0))
       PictureBox2.Image = img

      'System.Threading.Thread.Sleep(20)
   End Sub
End Class

Answer 1

这些变化似乎让它看起来不错......

    g2.SmoothingMode = Drawing2D.SmoothingMode.HighQuality
    g2.TextRenderingHint = Drawing.Text.TextRenderingHint.ClearTypeGridFit
    g2.CompositingQuality = Drawing2D.CompositingQuality.HighQuality