vb中窗体自适应屏幕分辨率代码

    Option Explicit
Private ObjOldWidth As Long   '保存窗体的原始宽度
Private ObjOldHeight As Long '保存窗体的原始高度
Private ObjOldFont As Single '保存窗体的原始字体比

'在调用ResizeForm前先调用本函数
Public Sub ResizeInit(FormName As Form)
   Dim Obj As Control
  
   ObjOldWidth = FormName.ScaleWidth
   ObjOldHeight = FormName.ScaleHeight
   ObjOldFont = FormName.Font.Size / ObjOldHeight
   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
Public 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 / ObjOldWidth
   '保存窗体宽度缩放比例
   ScaleY = FormName.ScaleHeight / ObjOldHeight
   '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
       Obj.Font.Size = ObjOldFont * FormName.ScaleHeight
     Next i
  
   Next Obj
  
   On Error GoTo 0
End Sub

Private Sub Form_Resize()
   '确保窗体改变时控件随之改变
   Call ResizeForm(Me)
End Sub

Private Sub Form_Load()
   '在程序装入时必须加入
   Call ResizeInit(Me)
End Sub