利用Graphics的MeasureString方法测量特定字符串的长度

Private Sub Measure(ByVal BannerText As String, _
ByVal FontName As String, ByVal FontSize As Single)

Dim bmp As Bitmap
Dim gph As Graphics
Dim fnt As Font
Dim stringSize As SizeF

fnt = New Font(FontName, FontSize)

bmp = New Bitmap(1, 1, PixelFormat.Format32bppArgb)
gph = Graphics.FromImage(bmp) stringSize = gph.MeasureString(BannerText, fnt)
Width = stringSize.Width
Height = stringSize.Height
gph.Dispose()
bmp.Dispose()
End Sub