vb.net 控件（包括字体）随窗体按比例缩放

seloba

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