vb.net 控件（包括字体）随窗体按比例缩放

Public Class frmDl

Dim x As Single = 0

Dim y As Single = 0

Private Sub frmDl_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

x = Me.Width

y = Me.Height

setTag(Me)

End Sub

'递归取控件的原始大小和位置，用tag来纪录

Private Sub setTag(ByVal obj As Object)

For Each con As Control In obj.Controls

con.Tag = con.Width & ":" & con.Height & ":" & con.Left & ":" & con.Top & ":" & con.Font.Size

'如果是容器控件，则递归继续纪录

If con.Controls.Count > 0 Then

setTag(con)

End If

Next

End Sub

'递归重新设定控件的大小和位置

Private Sub setControls(ByVal newx As Single, ByVal newy As Single, ByVal obj As Object)

For Each con As Control In obj.Controls

con.AutoSize = False

Dim mytag() As String = con.Tag.ToString.Split(":")

con.Width = mytag(0) * newx

con.Height = mytag(1) * newy

con.Left = mytag(2) * newx

con.Top = mytag(3) * newy

'计算字体缩放比例，缩放字体

Dim currentSize As Single = (mytag(1) * newy * mytag(4)) / mytag(1)

con.Font = New Font(con.Font.Name, currentSize, _

con.Font.Style, con.Font.Unit)

'如果是容器控件，则递归继续缩放

If con.Controls.Count > 0 Then

setControls(newx, newy, con)

End If

Next

End Sub

Private Sub frmDl_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize

'得到现在窗体的大小，然后根据原始大小计算缩放比例

Dim newx As Single = Me.Width / x

Dim newy As Single = Me.Height / y

setControls(newx, newy, Me)

End Sub

End Class