主题：[求助]DrawString做的painter控件打印时会有很强的颗粒感

为了能显示旋转90度的label，先用DrawString把想显示的字符串画成图片然后再旋转。

这样做出来的控件在屏幕上看挺正常的 怎么用打印机打印出来就有很强的的颗粒感？好像分辨率不够的样子。

请高手帮忙解答，谢谢先！

Dim p As WinForm.Painter = e.Form.Controls("Painter")
Dim w As Integer = p.Width
Dim h As Integer = p.Height
Dim g As Graphics = p.Graphics   '获取Graphics对象
Dim fnt As New Font("Arial",6)
Dim msg As String =  "ABCDEFGHIJKLMN"
Dim  sf As StringFormat = new StringFormat(StringFormat.GenericTypographic)
Dim  size As  SizeF = g.MeasureString(msg,fnt,1000,sf)
Dim sh =(h/2 - size.Height/2)
Dim sw =(w/2 -  size.Width/2)
g.TranslateTransform(w/2, h/2)
g.RotateTransform(-90)
g.TranslateTransform(-w/2, -h/2)
g.DrawString(msg,fnt,Brushes.BLACK,sw,sh)
g.TranslateTransform(w/2, h/2)
g.RotateTransform(90)
p.Repaint()