Question

VB在下面程序基础上，怎么让字体的大小随窗体大小变化而变化？

Option Explicit

Private FormOldWidth As Long
'保存窗体的原始宽度
Private FormOldHeight As Long

'保存窗体的原始高度
'在调用ResizeForm前先调用本函数
Private Sub ResizeInit(FormName As Form)
Dim Obj As Control

FormOldWidth = FormName.ScaleWidth
FormOldHeight = FormName.ScaleHeight

On Error Resume Next

For Each Obj In FormName
Obj.Tag = Obj.Left & " " & Obj.Top & " " & Obj.Width & " " & Obj.Height & " "
Next Obj

On Error GoTo 0

End Sub

'按比例改变表单内各元件的大小，在调用ReSizeForm前先调用ReSizeInit函数
Private Sub ResizeForm(FormName As Form)
Dim Pos(4) As Double
Dim i As Long, TempPos As Long, StartPos As Long
Dim Obj As Control
Dim ScaleX As Double, ScaleY As Double

ScaleX = FormName.ScaleWidth / FormOldWidth
'保存窗体宽度缩放比例
ScaleY = FormName.ScaleHeight / FormOldHeight
'保存窗体高度缩放比例

On Error Resume Next

For Each Obj In FormName
StartPos = 1

For i = 0 To 4
'读取控件的原始位置与大小
TempPos = InStr(StartPos, Obj.Tag, " ", vbTextCompare)
If TempPos > 0 Then
Pos(i) = Mid(Obj.Tag, StartPos, TempPos - StartPos)
StartPos = TempPos + 1
Else
Pos(i) = 0
End If
'根据控件的原始位置及窗体改变大小的比例对控件重新定位与改变大小
Obj.Move Pos(0) * ScaleX, Pos(1) * ScaleY, Pos(2) * ScaleX, Pos(3) * ScaleY
Next i
Next Obj
On Error GoTo 0
End Sub
'开发软件时候,把这个modal装入程序中.然后加入如下代码:
Private Sub Form_Load()
Call ResizeInit(Me) '在程序装入时必须加入
End Sub
Private Sub Form_Resize()
Call ResizeForm(Me) '确保窗体改变时控件随之改变
End Sub

Answer 1

Obj.Tag 在这个属性里 多记录控件的 fontsize
obj.fontsize=Pos(5) * scaley 或者 乘以scalex