h_resize.bas

用于公路、轻轨及铁路双线线间距工程计算的源程序。

Attribute VB_Name = "H_Resize"

Option Explicit
Public FormOldWidth As Long
    '保存窗体的原始宽度
Public FormOldHeight As Long
    '保存窗体的原始高度

'在调用ResizeForm前先调用本函数
Public 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
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 / 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