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